I have 75 Hz monitor, only one, but default refresh rate provided by EDID is 60 Hz. If I choose 75 Hz refresh rate in KScreen, apply it and save, then after reboot and starting clean plasma session I have 75 Hz refresh rate due to xrandr but 60 FPS in KWin due to qdbus org.kde.KWin /KWin supportInformation. As result, animation is choppy and laggy. If I run kwin --replace KWin restarts at 75 FPS and everything become smooth. As a workaround, I need to have file in /etc/X11/Xsession.d/ with command "xrandr --output DisplayPort-0 --mode 0x5a;" that sets monitor to 1080p@75Hz. Command in file is executed by SDDM on startup before KWin starts so KWin reads right xrandr options and starts at 75 FPS. I think, KScreen must set xrandr options on plasma session startup strictly before KWin starts. SOFTWARE VERSIONS KDE Plasma Version: 5.14.1 KDE Frameworks Version: 5.51.0 Qt Version: 5.11.2 X.org Version: 1.19.6
Thank you for the bug report. Unfortunately we were not able to get to it yet. Can we ask you to please see if you can reproduce the issue with Plasma 5.25 or 5.26? If you can, please change the status to CONFIRMED when replying. Thanks a lot!
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!