Changing pixel format for Ryzen 2200G

matthias · October 20, 2018 at 10:31 PM

Hello,

I have a rather old Philips TV connected to my HTPC. The problem is: every once in a while the display goes completly cyan/magenta. I had the problem before with older HTPC hardware and the fix was to force the output of the graphics adaptor to Full RGB / RGB 4:4:4. Unfortunately, I did not find where I can make this setting in LibreELEC 9 (Milhouse build).

So far I tried

- setting "ColorSpace" and "ColorRange" in xorg.conf

- xrandr (but there seems to be no property for the pixel format, at least for the AMD CPU)

- Kodi settings (use limited color range)

Is there a way to force the pixel format to RGB 4:4:4?

**Iridium** · October 25, 2018 at 6:27 PM Official Post

I think your best bet is to try 8.90.006 and see if that improves things - however I think it *might* be time to buy a new TV.

**5schatten** · October 25, 2018 at 7:37 PM

Quote from matthias

Hello,

I have a rather old Philips TV connected to my HTPC. The problem is: every once in a while the display goes completly cyan/magenta. I had the problem before with older HTPC hardware and the fix was to force the output of the graphics adaptor to Full RGB / RGB 4:4:4. Unfortunately, I did not find where I can make this setting in LibreELEC 9 (Milhouse build).

So far I tried

- setting "ColorSpace" and "ColorRange" in xorg.conf

- xrandr (but there seems to be no property for the pixel format, at least for the AMD CPU)

- Kodi settings (use limited color range)

Is there a way to force the pixel format to RGB 4:4:4?

Display More

Well maybe this helps:

amdgpu#xorg_or_applications_won.27t_start

xorg.conf.5.html

Code

Section "Screen"
       Identifier     "Screen"
       DefaultDepth    24
       SubSection      "Display"
               Depth   24
       EndSubSection
EndSection

Quote

DefaultDepth depth

specifies which color depth the server should use by default. The -depth command line option can be used to override this. If neither is specified, the default depth is driver-specific, but in most cases is 8.