Comment 4 for bug 2023910

I'm seeing the same issue when using the 6.2 kernel from the proposed repository in 22.04 LTS. The underlying issue is that the kernel update seems to break colord color management. You can test this by going to settings, color, and then switch from the automatic profile loaded for your monitor to one of the test profiles that swaps the red and green channels. Normally this will result in an inverted color profile across the desktop and apps that perform color management. After upgrading to the 6.2 kernel the test icc patterns no longer apply and color management is broken.

Interestingly, for me the broken behavior only occurs when simultaneously updating mesa from the current version 22.2.5-0ubuntu0.1~22.04.3, to 23.0.4-0ubuntu1~22.04.1 in the proposed repository. The combination of kernel 6.2 with mesa 22.2.5 works, as does the combination of kernel 5.15.0 or 5.19.0 with mesa 23.0.4. The breakage (for me) seems to occur specifically when using kernel 6.2 in combination with mesa 23.0.4.

This is all using an Xorg session (color management on wayland is not working at all for me).