Colorspace YUV/RGB problem / GPU's RGB Full range setup?

Help & Support Hardware
3

Seems that disable auto colour depth switching doesnt have any influence, on both (YUV/RGB, Automatic range (video/pc signal) function on projector). Projector and TV are acting the same. I dont know how to show YUV/RGB mark on TV.

  1. Default Odroid C2 / Odroid C2 with both enabled/disabled auto colour depth switching

Projector:
YUV
Automatically choose wrong limit range of video: Video signal -> darkens blacks too much, without detail. When I manually switch to PC signal @projector, picture seems to be better/OK.

Panasonic TV:
Choosing between Full and Limited range on TV doesnt make any difference, picture has not darkened black or goes significantly grey.

  1. Odroid C2 + echo “rgb,8bit” / echo "rgb,10bit"
    hdmitx shows Colour range RGB: limited, devices confirms this

Projector:
RGB
Automatically choose Video signal -> Picture is fine. When I manually switch to PC signal, image is “too gray/washed out”.

Panasonic TV:
Automatically choose Limited Range and picture is fine. When choosing Full Range, image is “too gray/washed out”.

  1. Odroid C2 + echo “full,rgb,8bit” / echo "full,rgb,10bit"
    hdmitx shows Colour range RGB: full, device detects Full, but picture is like Limited (3.):

Projector:
RGB
Automatically choose PC Signal signal -> Picture is “too gray/washed out”. When I manually switch to Video signal, image is fine.

Panasonic TV:
Automatically choose Full Range and picture is “too bright/gray”. When choosing Limited Range, image is OK.

  1. Rpi with GPU at Limited range (hdmi_pixel_encoding=1):

Projector:
RGB
Automatically choose Video Signal -> Picture is fine. When I manually switch to PC signal, image is “too gray/washed out”.

Panasonic TV:
Automatically choose Limited Range and picture is fine. When choosing Full Range, image is"too gray/washed out".

  1. Rpi with GPU at full range (hdmi_pixel_encoding=2):

Projector:
RGB
Automatically choose PC Signal -> Picture is fine. When I manually switch to Video signal, image is too dark.

Panasonic TV:
Automatically choose Full Range and picture is fine. When choosing Limited Range, image is too dark.

From the observation I think on projector has
PC Signal = Full Range
Video Signal = Limited Range

and Odroid C2

  • disable auto colour depth switching - no change
  • RGB/YUV switching - works
  • full/limited switching - seems to doesnt works, both output are in Limited range
  • didnt find difference between rgb,8bit and rgb,10bit on the first look/test