[steo86]

Hello,
I have just switched from NVIDIA-based System to an AMD-ryzen System using the open source Driver AMDGPU on ubuntu 18.04.
I have installed latest of everything (kernel 4.18-rc6; latest mesa 18.2; latest linxu-firmware; libva 2.2.1 and kodi nightly build) to get it working.
But there are still a lot of problems. One issue I have ist that there seems to be a problem with the colorrange.

In the past I set the graphics-driver to full rgb (NVIDIA) but adding  ...
Option         "ColorRange" "Full"
Option         "ColorSpace" "RGB"
… to the xorg.conf. In kodi I set to limited range 16-235 and everything was ok.

Now with amdgpu and ryzen if I set in kodi to limited ranged and then the Grey is washed out.
So it seems that amdgpu is running with limited range at Default.

Do you know I way how to set the amdgpu to "rgb full"?
The xorg-entries I used does not seem to work with amdgpu.

[FernetMenta]

should be something like this: xrandr --output HDMI-0 --set output_csc bypass

[fritsch]

xrandr --output HDMI-0 --verbose 

will tell you all the options available

[steo86]

thanks for your info. I will try the commands when I am back at home.
Is there a command or logfile to see which mode (rgb/ycbcr) and which range (limited or full) is currently selected for each screen?

[fritsch]

Same command with verbose will tell.

[steo86]

ok here is my Output from verbose. Which values will tell me the colorange (full or limited) and type (rgb or ycbcr)?

https://pastebin.com/VJRaUtiw

[Klojum]

@steo86 Pastebin links are preferred over text dumps into the forum

[fritsch]

Is this an old AMD blob? The above will only work with the OSS drivers.

[steo86]

No this is the Output with latest kernel 4.18-rc6 (mainline kernel) on ubuntu 18.04 with latest mesa 18.2.0-devel and latest Linux-Firmware from git-repository.
Why do you think it´s old?

[fritsch]

No this is the Output with latest kernel 4.18-rc6 (mainline kernel) on ubuntu 18.04 with latest mesa 18.2.0-devel and latest Linux-Firmware from git-repository.
Why do you think it´s old?

 Cause some important options are missing. Post dmesg | pastebinit please - depending on the HW you have there is support or not.

[steo86]

here is my dmesg Output:

https://pastebin.com/3mUHaEiB

[fritsch]

Okay - No idea. Please ask on #dri-devel IRC channel