https://bugs.kde.org/show_bug.cgi?id=502202
--- Comment #3 from Seimus <mifoni...@gmail.com> --- I looked around gamescome git repo and found https://github.com/ValveSoftware/gamescope/issues/1617 https://github.com/ValveSoftware/gamescope/issues/1724 Which after reading looks like gamescope can introduce VRR flicker due to nesting. I turned on my monitor's built-in refresh rate OSD, and per it the Frame rates were all over the place even tho in game they were stable 90. However matte-schwartz pointed out one interesting parameter --adaptive-sync I checked the gamescope help --adaptive-sync Enable adaptive sync if available (variable rate refresh) I set the parameter: gamescope -w 3440 -h 1440 -f -r 165 --adaptive-sync --hdr-enabled -- %command% = No flicker I tried as well same parameter with using gooverlay: gamescope -w 3440 -h 1440 -f -r 165 --adaptive-sync --hdr-enabled -- %command% = No flicker I tried as well to set mangoapp as a parameter gamescope -w 3440 -h 1440 -f -r 165 --adaptive-sync --hdr-enabled --mangoapp -- %command% = No flicker And the flickering is gone. So looks like in my case this was a user mistake. If gamesscope is used with a VRR monitor e.g Adaptive sync is turned on, gamescope has to have this parameter explicitly set otherwise VRR is broken and causes insane flicker bellow 100FPS. @Zamundaaa Many thanks to pointing me to the correct direction. HDR and VRR are working now properly and I can enjoy both of worlds. Also great work on the HDR! I like to read your blogposts its so exiting having HDR on Linux. -- You are receiving this mail because: You are watching all bug changes.
