SUMMARY KScreen shows a 120hz refresh rate mode on my laptop screen even though it only supports 60hz. xrandr lists the "120hz" modes as 60hz and DoubleScan. Similar bug in gnome: https://gitlab.gnome.org/GNOME/mutter/-/issues/275 SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE Plasma Version: 5.20.4 KDE Frameworks Version: 5.77.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION $ xrandr --verbose 1920x1080 (0x48) 138.700MHz +HSync -VSync *current +preferred h: width 1920 start 1968 end 2000 total 2080 skew 0 clock 66.68KHz v: height 1080 start 1083 end 1088 total 1111 clock 60.02Hz 1920x1080 (0x49) 356.375MHz -HSync +VSync DoubleScan h: width 1920 start 2080 end 2288 total 2656 skew 0 clock 134.18KHz v: height 1080 start 1081 end 1084 total 1118 clock 60.01Hz 1920x1080 (0x4a) 266.500MHz +HSync -VSync DoubleScan h: width 1920 start 1944 end 1960 total 2000 skew 0 clock 133.25KHz v: height 1080 start 1081 end 1084 total 1111 clock 59.97Hz 1920x1080 (0x4b) 173.000MHz -HSync +VSync h: width 1920 start 2048 end 2248 total 2576 skew 0 clock 67.16KHz v: height 1080 start 1083 end 1088 total 1120 clock 59.96Hz 1920x1080 (0x4c) 138.500MHz +HSync -VSync h: width 1920 start 1968 end 2000 total 2080 skew 0 clock 66.59KHz v: height 1080 start 1083 end 1088 total 1111 clock 59.93Hz $ kscreen-console output Modes: "72" "" QSize(1920, 1080) 60.0204 "73" "" QSize(1920, 1080) 120.016 "74" "" QSize(1920, 1080) 119.937 "75" "" QSize(1920, 1080) 59.9628 "76" "" QSize(1920, 1080) 59.9339
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 appears to have been fixed in the latest version