https://bugs.kde.org/show_bug.cgi?id=485742
Bug ID: 485742 Summary: HDR Colors Incorrect in Comparison to DRM Gamescope Session Classification: Plasma Product: kwin Version: 6.0.4 Platform: Gentoo Packages OS: Linux Status: REPORTED Severity: normal Priority: NOR Component: core Assignee: kwin-bugs-n...@kde.org Reporter: abhi...@praveen.org.uk Target Milestone: --- Created attachment 168649 --> https://bugs.kde.org/attachment.cgi?id=168649&action=edit EDID Dump of the FO32U2P SUMMARY HDR Colors using a nested Gamescope session in games under KDE Plasma look clearly incorrect. I tested at least the following games: Plague Tale Requiem FF7 Remake God of War In each, I was able to explicitly enable HDR but there were clear issues with the color. In God of War, reds looked halfway in between red and orange. Blues in FF7 Remake were closer to a turqoise and Plague Tale Requiem looked as if a fog was covering the screen. In comparison, running God of War in a DRM (Embedded) Gamescope Session did not produce these issues. I think that this indicates that this is a KDE Plasma Bug because HDR seems to be working under a different compositor (gamescope). STEPS TO REPRODUCE 1. A HDR monitor, I guess? 2. Start steam 3. Start one of the games listed above under steam with DXVK_HDR=1 and under gamescope -W 3840 -w 3840 -H 2160 -h 2160 -f -r 165 --hdr-enabled Also, I have tried many permutations of enabling different HDR layers and setting different gamescope arguments and nothing seems to solve this issue. Let me know if there is a specifc setup that I should test. OBSERVED RESULT As described above, significant color distortion. EXPECTED RESULT Good color output. SOFTWARE/OS VERSIONS Linux: 6.8.7 KDE Plasma Version: 6.0.4 KDE Frameworks Version: 6.1.0? I have some 5.115.0 packages too though Qt Version: qtbase is at 6.7.0 Mesa: 24.0.5 Monitor: Aorus FO32U2P (one other monitor is plugged in but not HDR capable) over DisplayPort 2.1 at 165hz ADDITIONAL INFORMATION For comparison, the gamescope arguments I used for the DRM session were: ENABLE_GAMESCOPE_WSI=1 gamescope -W 3840 -H 2160 -r 165 -O DP-1 --hdr-enabled And, in this case I just set DXVK_HDR=1 in the launch arguments for the game and nothing else (that is relevant). -- You are receiving this mail because: You are watching all bug changes.