The following example reports ddcutil's internal table of VCP Feature definitions.

$ ddcutil vcpinfo

VCP code 01: Degauss
   Causes a CRT to perform a degauss cycle
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: CRT
   Attributes: Write Only, Non-Continuous (write-only)
VCP code 02: New control value
   Indicates that a display user control (other than power) has been used to change and save (or autosave) a new value.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Write, Non-Continuous (complex)
VCP code 03: Soft controls
   Allows display controls to be used as soft keys
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Write, Non-Continuous (simple)
VCP code 04: Restore factory defaults
   Restore all factor presets including brightness/contrast, geometry, color, and TV defaults.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Preset
   ddcutil feature subsets: COLOR
   Attributes: Write Only, Non-Continuous (write-only)
VCP code 05: Restore factory brightness/contrast defaults
   Restore factory defaults for brightness and contrast
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Preset
   ddcutil feature subsets: COLOR
   Attributes: Write Only, Non-Continuous (write-only)
VCP code 06: Restore factory geometry defaults
   Restore factory defaults for geometry adjustments
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Preset
   ddcutil feature subsets: 
   Attributes: Write Only, Non-Continuous (write-only)
VCP code 08: Restore color defaults
   Restore factory defaults for color settings.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Preset
   ddcutil feature subsets: COLOR
   Attributes: Write Only, Non-Continuous (write-only)
VCP code 0A: Restore factory TV defaults
   Restore factory defaults for TV functions.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Preset
   ddcutil feature subsets: TV
   Attributes: Write Only, Non-Continuous (write-only)
VCP code 0B: Color temperature increment
   Color temperature increment used by feature 0Ch Color Temperature Request
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: COLOR
   Attributes: Read Only, Non-Continuous (complex)
VCP code 0C: Color temperature request
   Specifies a color temperature (degrees Kelvin)
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Continuous (complex)
VCP code 0E: Clock
   Increase/decrease the sampling clock frequency.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: 
   Attributes: Read Write, Continuous (standard)
VCP code 10: Brightness
   Increase/decrease the brightness of the image.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: PROFILE, COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 11: Flesh tone enhancement
   Select contrast enhancement algorithm respecting flesh tone region
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Non-Continuous (complex)
VCP code 12: Contrast
   Increase/decrease the contrast of the image.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: PROFILE, COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 13: Backlight control
   Increase/decrease the specified backlight control value
   MCCS versions: 2.1, 3.0
   MCCS specification groups: Image
   ddcutil feature subsets: PROFILE, COLOR
   Attributes (v2.1): Read Write, Continuous (complex)
   Attributes (v3.0): Read Write, Continuous (complex)
   Attributes (v2.2): Deprecated
VCP code 14: Select color preset
   Select a specified color temperature
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: PROFILE, COLOR
   Attributes (v2.0): Read Write, Non-Continuous (simple)
   Attributes (v2.1): Read Write, Non-Continuous (simple)
   Attributes (v3.0): Read Write, Non-Continuous (complex)
   Attributes (v2.2): Read Write, Non-Continuous (complex)
VCP code 16: Video gain: Red
   Increase/decrease the luminesence of red pixels
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: PROFILE, COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 17: User color vision compensation
   Increase/decrease the degree of compensation
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 18: Video gain: Green
   Increase/decrease the luminesence of green pixels
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: PROFILE, COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 1A: Video gain: Blue
   Increase/decrease the luminesence of blue pixels
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: PROFILE, COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 1C: Focus
   Increase/decrease the focus of the image
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: 
   Attributes: Read Write, Continuous (standard)
VCP code 1E: Auto setup
   Perform autosetup function (H/V position, clock, clock phase, A/D converter, etc.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: 
   Attributes: Read Write, Non-Continuous (simple)
VCP code 1F: Auto color setup
   Perform color autosetup function (R/G/B gain and offset, A/D setup, etc. 
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Non-Continuous (simple)
VCP code 20: Horizontal Position (Phase)
   Increasing (decreasing) this value moves the image toward the right (left) of the display.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 22: Horizontal Size
   Increase/decrease the width of the image.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 24: Horizontal Pincushion
   Increasing (decreasing) this value causes the right and left sides of the image to become more (less) convex.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 26: Horizontal Pincushion Balance
   Increasing (decreasing) this value moves the center section of the image toward the right (left) side of the display.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 28: Horizontal Convergence R/B
   Increasing (decreasing) this value shifts the red pixels to the right (left) and the blue pixels left (right) across the image with respect to the green pixels.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 29: Horizontal Convergence M/G
   Increasing (decreasing) this value shifts the magenta pixels to the right (left) and the green pixels left (right) across the image with respect to the magenta (sic) pixels.
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 2A: Horizontal Linearity
   Increase/decrease the density of pixels in the image center.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 2C: Horizontal Linearity Balance
   Increasing (decreasing) this value shifts the density of pixels from the left (right) side to the right (left) side of the image.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 2E: Gray scale expansion
   Gray Scale Expansion
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Non-Continuous (complex)
VCP code 30: Vertical Position (Phase)
   Increasing (decreasing) this value moves the image toward the top (bottom) edge of the display.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 32: Vertical Size
   Increase/decreasing the height of the image.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 34: Vertical Pincushion
   Increasing (decreasing) this value will cause the top and bottom edges of the image to become more (less) convex.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 36: Vertical Pincushion Balance
   Increasing (decreasing) this value will move the center section of the image toward the top (bottom) edge of the display.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 38: Vertical Convergence R/B
   Increasing (decreasing) this value shifts the red pixels up (down) across the image and the blue pixels down (up) across the image with respect to the green pixels.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 39: Vertical Convergence M/G
   Increasing (decreasing) this value shifts the magenta pixels up (down) across the image and the green pixels down (up) across the image with respect to the magenta (sic) pixels.
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 3A: Vertical Linearity
   Increase/decease the density of scan lines in the image center.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 3C: Vertical Linearity Balance
   Increase/decrease the density of scan lines in the image center.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 3E: Clock phase
   Increase/decrease the sampling clock phase shift
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Write, Continuous (standard)
VCP code 40: Horizontal Parallelogram
   Increasing (decreasing) this value shifts the top section of the image to the right (left) with respect to the bottom section of the image.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 41: Vertical Parallelogram
   Increasing (decreasing) this value shifts the top section of the image to the right (left) with respect to the bottom section of the image. (sic)
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 42: Horizontal Keystone
   Increasing (decreasing) this value will increase (decrease) the ratio between the horizontal size at the top of the image and the horizontal size at the bottom of the image.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 43: Vertical Keystone
   Increasing (decreasing) this value will increase (decrease) the ratio between the vertical size at the left of the image and the vertical size at the right of the image.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 44: Rotation
   Increasing (decreasing) this value rotates the image (counter) clockwise around the center point of the screen.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 46: Top Corner Flare
   Increase/decrease the distance between the left and right sides at the top of the image.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 48: Top Corner Hook
   Increasing (decreasing) this value moves the top of the image to the right (left).
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 4A: Bottom Corner Flare
   Increase/decrease the distance between the left and right sides at the bottom of the image.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 4C: Bottom Corner Hook
   Increasing (decreasing) this value moves the bottom end of the image to the right (left).
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 52: Active control
   Read id of one feature that has changed, 0x00 indicates no more
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Only, Non-Continuous (complex)
VCP code 54: Performance Preservation
   Controls features aimed at preserving display performance
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Write, Non-Continuous (complex)
VCP code 56: Horizontal Moire
   Increase/decrease horizontal moire cancellation.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: 
   Attributes: Read Write, Continuous (standard)
VCP code 58: Vertical Moire
   Increase/decrease vertical moire cancellation.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: 
   Attributes: Read Write, Continuous (standard)
VCP code 59: 6 axis saturation: Red
   Increase/decrease red saturation
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 5A: 6 axis saturation: Yellow
   Increase/decrease yellow saturation
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 5B: 6 axis saturation: Green
   Increase/decrease green saturation
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 5C: 6 axis saturation: Cyan
   Increase/decrease cyan saturation
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 5D: 6 axis saturation: Blue
   Increase/decrease blue saturation
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 5E: 6 axis saturation: Magenta
   Increase/decrease magenta saturation
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 60: Input Source
   Selects active video source
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes (v2.0): Read Write, Non-Continuous (simple)
   Attributes (v2.1): Read Write, Non-Continuous (simple)
   Attributes (v3.0): Read Write, Table
   Attributes (v2.2): Read Write, Non-Continuous (simple)
VCP code 62: Audio speaker volume
   Adjusts speaker volume
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Audio
   ddcutil feature subsets: AUDIO
   Attributes (v2.0): Read Write, Continuous (standard)
   Attributes (v2.1): Read Write, Continuous (standard)
   Attributes (v3.0): Read Write, Continuous (complex)
   Attributes (v2.2): Read Write, Continuous (standard)
VCP code 63: Speaker Select
   Selects a group of speakers
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Audio
   ddcutil feature subsets: AUDIO
   Attributes: Read Write, Non-Continuous (simple)
VCP code 64: Audio: Microphone Volume
   Increase/decrease microphone gain
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Audio
   ddcutil feature subsets: AUDIO
   Attributes: Read Write, Continuous (standard)
VCP code 66: Ambient light sensor
   Enable/Disable ambient light sensor
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Write, Non-Continuous (simple)
VCP code 6B: Backlight Level: White
   Increase/decrease the white backlight level
   MCCS versions: 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: PROFILE, COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 6C: Video black level: Red
   Increase/decrease the black level of red pixels
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: PROFILE, COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 6D: Backlight Level: Red
   Increase/decrease the red backlight level
   MCCS versions: 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: PROFILE, COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 6E: Video black level: Green
   Increase/decrease the black level of green pixels
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: PROFILE, COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 6F: Backlight Level: Green
   Increase/decrease the green backlight level
   MCCS versions: 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: PROFILE, COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 70: Video black level: Blue
   Increase/decrease the black level of blue pixels
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: PROFILE, COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 71: Backlight Level: Blue
   Increase/decrease the blue backlight level
   MCCS versions: 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: PROFILE, COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 72: Gamma
   Select relative or absolute gamma
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Non-Continuous (complex)
VCP code 73: LUT Size
   Provides the size (number of entries and number of bits/entry) for the Red, Green, and Blue LUT in the display.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Miscellaneous
   ddcutil feature subsets: LUT
   Attributes: Read Only, Table
VCP code 74: Single point LUT operation
   Writes a single point within the display's LUT, reads a single point from the LUT
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Miscellaneous
   ddcutil feature subsets: LUT
   Attributes: Read Write, Table
VCP code 75: Block LUT operation
   Load (read) multiple values into (from) the display's LUT
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Miscellaneous
   ddcutil feature subsets: LUT
   Attributes: Read Write, Table
VCP code 76: Remote Procedure Call
   Initiates a routine resident in the display
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: LUT
   Attributes: Write Only, Table
VCP code 78: Display Identification Operation
   Causes a selected 128 byte block of Display Identification Data (EDID or Display ID) to be read
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes (v2.1): Read Only, Table
   Attributes (v3.0): Read Only, Table
   Attributes (v2.2): Read Only, Table
VCP code 7A: Adjust Focal Plane
   Increase/decrease the distance to the focal plane of the image
   MCCS versions: 2.0, 2.1
   MCCS specification groups: Image
   ddcutil feature subsets: 
   Attributes (v2.0): Read Write, Continuous (standard)
   Attributes (v2.1): Read Write, Continuous (standard)
   Attributes (v3.0): Deprecated
   Attributes (v2.2): Deprecated
VCP code 7C: Adjust Zoom
   Increase/decrease the distance to the zoom function of the projection lens (optics)
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: 
   Attributes: Read Write, Continuous (standard)
VCP code 7E: Trapezoid
   Increase/decrease the trapezoid distortion in the image
   MCCS versions: 2.0, 2.1
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes (v2.0): Read Write, Continuous (standard)
   Attributes (v2.1): Read Write, Continuous (standard)
   Attributes (v3.0): Deprecated
   Attributes (v2.2): Deprecated
VCP code 80: Keystone
   Increase/decrease the keystone distortion in the image.
   MCCS versions: 2.0
   MCCS specification groups: Geometry
   ddcutil feature subsets: CRT
   Attributes (v2.0): Read Write, Continuous (standard)
   Attributes (v2.1): Deprecated
   Attributes (v3.0): Deprecated
   Attributes (v2.2): Deprecated
VCP code 82: Horizontal Mirror (Flip)
   Flip picture horizontally
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Geometry
   ddcutil feature subsets: 
   Attributes (v2.0): Write Only, Non-Continuous (write-only)
   Attributes (v2.1): Read Write, Non-Continuous (simple)
   Attributes (v3.0): Read Write, Non-Continuous (simple)
   Attributes (v2.2): Read Write, Non-Continuous (simple)
VCP code 84: Vertical Mirror (Flip)
   Flip picture vertically
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Geometry
   ddcutil feature subsets: 
   Attributes (v2.0): Write Only, Non-Continuous (write-only)
   Attributes (v2.1): Read Write, Non-Continuous (simple)
   Attributes (v3.0): Read Write, Non-Continuous (simple)
   Attributes (v2.2): Read Write, Non-Continuous (simple)
VCP code 86: Display Scaling
   Control the scaling (input vs output) of the display
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: 
   Attributes: Read Write, Non-Continuous (simple)
VCP code 87: Sharpness
   Selects one of a range of algorithms. Increasing (decreasing) the value must increase (decrease) the edge sharpness of image features.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: 
   Attributes (v2.0): Read Write, Non-Continuous (simple)
   Attributes (v2.1): Read Write, Continuous (standard)
   Attributes (v3.0): Read Write, Continuous (standard)
   Attributes (v2.2): Read Write, Continuous (standard)
VCP code 88: Velocity Scan Modulation
   Increase (decrease) the velocity modulation of the horizontal scan as a function of the change in luminescence level
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Miscellaneous
   ddcutil feature subsets: CRT
   Attributes: Read Write, Continuous (standard)
VCP code 8A: Color Saturation
   Increase/decrease the amplitude of the color difference components of the video signal
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: COLOR, TV
   Attributes: Read Write, Continuous (standard)
VCP code 8B: TV Channel Up/Down
   Increment (1) or decrement (2) television channel
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: TV
   Attributes: Write Only, Non-Continuous (write-only)
VCP code 8C: TV Sharpness
   Increase/decrease the amplitude of the high frequency components  of the video signal
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Miscellaneous
   ddcutil feature subsets: TV
   Attributes: Read Write, Continuous (standard)
VCP code 8D: Audio mute/Screen blank
   Mute/unmute audio, and (v2.2) screen blank
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: TV, AUDIO
   Attributes (v2.0): Read Write, Non-Continuous (simple)
   Attributes (v2.1): Read Write, Non-Continuous (simple)
   Attributes (v3.0): Read Write, Non-Continuous (simple)
   Attributes (v2.2): Read Write, Non-Continuous (complex)
VCP code 8E: TV Contrast
   Increase/decrease the ratio between blacks and whites in the image
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: TV
   Attributes: Read Write, Continuous (standard)
VCP code 8F: Audio Treble
   Emphasize/de-emphasize high frequency audio
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Audio
   ddcutil feature subsets: AUDIO
   Attributes (v2.0): Read Write, Continuous (standard)
   Attributes (v2.1): Read Write, Continuous (standard)
   Attributes (v3.0): Read Write, Non-Continuous (complex)
   Attributes (v2.2): Read Write, Non-Continuous (complex)
VCP code 90: Hue
   Increase/decrease the wavelength of the color component of the video signal. AKA tint.  Applies to currently active interface
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: COLOR, TV
   Attributes: Read Write, Continuous (standard)
VCP code 91: Audio Bass
   Emphasize/de-emphasize low frequency audio
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Audio
   ddcutil feature subsets: AUDIO
   Attributes (v2.0): Read Write, Continuous (standard)
   Attributes (v2.1): Read Write, Continuous (standard)
   Attributes (v3.0): Read Write, Non-Continuous (complex)
   Attributes (v2.2): Read Write, Non-Continuous (complex)
VCP code 92: TV Black level/Luminesence
   Increase/decrease the black level of the video
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: TV
   Attributes: Read Write, Continuous (standard)
VCP code 93: Audio Balance L/R
   Controls left/right audio balance
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Audio
   ddcutil feature subsets: AUDIO
   Attributes (v2.0): Read Write, Continuous (standard)
   Attributes (v2.1): Read Write, Continuous (standard)
   Attributes (v3.0): Read Write, Non-Continuous (complex)
   Attributes (v2.2): Read Write, Non-Continuous (complex)
VCP code 94: Audio Processor Mode
   Select audio mode
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Audio
   ddcutil feature subsets: TV, AUDIO
   Attributes: Read Write, Non-Continuous (simple)
VCP code 95: Window Position(TL_X)
   Top left X pixel of an area of the image
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry, Window
   ddcutil feature subsets: WINDOW
   Attributes: Read Write, Continuous (standard)
VCP code 96: Window Position(TL_Y)
   Top left Y pixel of an area of the image
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry, Window
   ddcutil feature subsets: WINDOW
   Attributes: Read Write, Continuous (standard)
VCP code 97: Window Position(BR_X)
   Bottom right X pixel of an area of the image
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry, Window
   ddcutil feature subsets: WINDOW
   Attributes: Read Write, Continuous (standard)
VCP code 98: Window Position(BR_Y)
   Bottom right Y pixel of an area of the image
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Geometry, Window
   ddcutil feature subsets: WINDOW
   Attributes: Read Write, Continuous (standard)
VCP code 99: Window control on/off
   Enables the brightness and color within a window to be different from the desktop.
   MCCS versions: 2.0, 2.1, 2.2
   MCCS specification groups: Window
   ddcutil feature subsets: WINDOW
   Attributes (v2.0): Read Write, Non-Continuous (simple)
   Attributes (v2.1): Read Write, Non-Continuous (simple)
   Attributes (v3.0): Deprecated
   Attributes (v2.2): Read Write, Non-Continuous (simple)
VCP code 9A: Window background
   Changes the contrast ratio between the area of the window and the rest of the desktop
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Window
   ddcutil feature subsets: WINDOW
   Attributes: Read Write, Continuous (standard)
VCP code 9B: 6 axis hue control: Red
   Decrease shifts toward magenta, increase shifts toward yellow
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Window
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 9C: 6 axis hue control: Yellow
   Decrease shifts toward green, increase shifts toward red
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Window
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 9D: 6 axis hue control: Green
   Decrease shifts toward yellow, increase shifts toward cyan
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Window
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 9E: 6 axis hue control: Cyan
   Decrease shifts toward green, increase shifts toward blue
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Window
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Continuous (standard)
VCP code 9F: 6 axis hue control: Blue
   Decrease shifts toward cyan, increase shifts toward magenta
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Window
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Continuous (standard)
VCP code A0: 6 axis hue control: Magenta
   Decrease shifts toward blue, 127 no effect, increase shifts toward red
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Window
   ddcutil feature subsets: COLOR
   Attributes: Read Write, Continuous (standard)
VCP code A2: Auto setup on/off
   Turn on/off an auto setup function
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: 
   Attributes: Write Only, Non-Continuous (write-only)
VCP code A4: Window mask control
   Turn selected window operation on/off, window mask
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: WINDOW
   Attributes (v2.0): Read Write, Non-Continuous (complex)
   Attributes (v2.1): Read Write, Non-Continuous (complex)
   Attributes (v3.0): Read Write, Table
   Attributes (v2.2): Read Write, Table
VCP code A5: Change the selected window
   Change selected window (as defined by 95h..98h)
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Window
   ddcutil feature subsets: WINDOW
   Attributes: Read Write, Non-Continuous (simple)
VCP code AA: Screen Orientation
   Indicates screen orientation
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Geometry
   ddcutil feature subsets: 
   Attributes: Read Only, Non-Continuous (simple)
VCP code AC: Horizontal frequency
   Horizontal sync signal frequency as determined by the display
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Only, Continuous (complex)
VCP code AE: Vertical frequency
   Vertical sync signal frequency as determined by the display, in .01 hz
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Only, Continuous (complex)
VCP code B0: Settings
   Store/restore the user saved values for the current mode.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Preset
   ddcutil feature subsets: 
   Attributes: Write Only, Non-Continuous (write-only)
VCP code B2: Flat panel sub-pixel layout
   LCD sub-pixel structure
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Only, Non-Continuous (simple)
VCP code B4: Source Timing Mode
   Indicates timing mode being sent by host
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Control
   ddcutil feature subsets: 
   Attributes (v2.1): Read Write, Non-Continuous (complex)
   Attributes (v3.0): Read Write, Table
   Attributes (v2.2): Read Write, Table
VCP code B6: Display technology type
   Indicates the base technology type
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Only, Non-Continuous (simple)
VCP code B7: Monitor status
   Video mode and status of a DPVL capable monitor
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: DPVL
   ddcutil feature subsets: DPVL
   Attributes: Read Only, Non-Continuous (complex)
VCP code B8: Packet count
   Counter for DPVL packets received
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: DPVL
   ddcutil feature subsets: DPVL
   Attributes: Read Write, Continuous (complex)
VCP code B9: Monitor X origin
   X origin of the monitor in the vertical screen
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: DPVL
   ddcutil feature subsets: DPVL
   Attributes: Read Write, Continuous (complex)
VCP code BA: Monitor Y origin
   Y origin of the monitor in the vertical screen
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: DPVL
   ddcutil feature subsets: DPVL
   Attributes: Read Write, Continuous (complex)
VCP code BB: Header error count
   Error counter for the DPVL header
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: DPVL
   ddcutil feature subsets: DPVL
   Attributes: Read Write, Continuous (complex)
VCP code BC: Body CRC error count
   CRC error counter for the DPVL body
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: DPVL
   ddcutil feature subsets: DPVL
   Attributes: Read Write, Continuous (complex)
VCP code BD: Client ID
   Assigned identification number for the monitor
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: DPVL
   ddcutil feature subsets: DPVL
   Attributes: Read Write, Continuous (complex)
VCP code BE: Link control
   Indicates status of the DVI link
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: DPVL
   ddcutil feature subsets: DPVL
   Attributes: Read Write, Non-Continuous (complex)
VCP code C0: Display usage time
   Active power on time in hours
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Only, Continuous (complex)
VCP code C2: Display descriptor length
   Length in bytes of non-volatile storage in the display available for writing a display descriptor, max 256
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Only, Continuous (standard)
VCP code C3: Transmit display descriptor
   Reads (writes) a display descriptor from (to) non-volatile storage in the display.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Write, Table
VCP code C4: Enable display of 'display descriptor'
   If enabled, the display descriptor shall be displayed when no video is being received.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Write, Non-Continuous (complex)
VCP code C6: Application enable key
   A 2 byte value used to allow an application to only operate with known products.
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Only, Non-Continuous (complex)
VCP code C8: Display controller type
   Mfg id of controller and 2 byte manufacturer-specific controller type
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Control, Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Write, Non-Continuous (complex)
VCP code C9: Display firmware level
   2 byte firmware level
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Control, Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Only, Non-Continuous (complex)
VCP code CA: OSD/Button Control
   Sets and indicates the current operational state of OSD (and buttons in v2.2)
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Control, Miscellaneous
   ddcutil feature subsets: 
   Attributes (v2.0): Read Write, Non-Continuous (simple)
   Attributes (v2.1): Read Write, Non-Continuous (simple)
   Attributes (v3.0): Read Write, Non-Continuous (simple)
   Attributes (v2.2): Read Write, Non-Continuous (complex)
VCP code CC: OSD Language
   On Screen Display languge
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Control, Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Write, Non-Continuous (simple)
VCP code CD: Status Indicators
   Control up to 16 LED (or similar) indicators to indicate system status
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Write, Non-Continuous (complex)
VCP code CE: Auxiliary display size
   Rows and characters/row of auxiliary display
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Only, Non-Continuous (complex)
VCP code CF: Auxiliary display data
   Sets contents of auxiliary display device
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Write Only, Table
VCP code D0: Output select
   Selects the active output
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes (v2.0): Read Write, Non-Continuous (simple)
   Attributes (v2.1): Read Write, Non-Continuous (simple)
   Attributes (v3.0): Read Write, Table
   Attributes (v2.2): Read Write, Non-Continuous (simple)
VCP code D2: Asset Tag
   Read an Asset Tag to/from the display
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Write, Table
VCP code D4: Stereo video mode
   Stereo video mode
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Write, Non-Continuous (complex)
VCP code D6: Power mode
   DPM and DPMS status
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Control, Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Write, Non-Continuous (simple)
VCP code D7: Auxiliary power output
   Controls an auxiliary power output from a display to a host device
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Write, Non-Continuous (simple)
VCP code DA: Scan mode
   Controls scan characteristics (aka format)
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image, Geometry
   ddcutil feature subsets: CRT
   Attributes: Read Write, Non-Continuous (simple)
VCP code DB: Image Mode
   Controls aspects of the displayed image (TV applications)
   MCCS versions: 2.1, 3.0, 2.2
   MCCS specification groups: Control
   ddcutil feature subsets: TV
   Attributes: Read Write, Non-Continuous (simple)
VCP code DC: Display Mode
   Type of application used on display
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Image
   ddcutil feature subsets: 
   Attributes: Read Write, Non-Continuous (simple)
VCP code DE: Scratch Pad
   Operation mode (2.0) or scratch pad (3.0/2.2)
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes (v2.0): Write Only, Non-Continuous (write-only)
   Attributes (v2.1): Read Write, Non-Continuous (complex)
   Attributes (v3.0): Read Write, Non-Continuous (complex)
   Attributes (v2.2): Read Write, Non-Continuous (complex)
VCP code DF: VCP Version
   MCCS version
   MCCS versions: 2.0, 2.1, 3.0, 2.2
   MCCS specification groups: Miscellaneous
   ddcutil feature subsets: 
   Attributes: Read Only, Non-Continuous (complex)