Created attachment 115686 [details] screenshot Both 30,00 hz and 60,00 hz are available twice. Se the screenshot please. Operating System: Arch Linux KDE Plasma Version: 5.14.1 Qt Version: 5.11.2 KDE Frameworks Version: 5.51.0 Kernel Version: 4.18.14-arch1-1-ARCH
That appears to be a problem with the backend. Can you post the output of xrandr?
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192 VGA-1 disconnected (normal left inverted right x axis y axis) HDMI-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 510mm x 290mm 1920x1080 60.00*+ 60.00 50.00 59.94 1920x1080i 60.00 60.00 50.00 59.94 1680x1050 59.88 1400x1050 59.95 1600x900 60.00 1280x1024 60.02 1440x900 59.90 1280x800 59.91 1152x864 59.97 1280x720 60.00 60.00 50.00 59.94 1024x768 60.00 800x600 60.32 720x576 50.00 720x480 60.00 60.00 59.94 59.94 640x480 60.00 59.94 59.94 HDMI-2 disconnected (normal left inverted right x axis y axis) DP-1 disconnected (normal left inverted right x axis y axis) HDMI-3 disconnected (normal left inverted right x axis y axis)
I don't think this is a problem with kde. Your monitor or graphics driver is listing 60hz twice for some reason. > 1920x1080 60.00*+ 60.00 50.00 59.94 For comparison, mine shows > 1920x1080 60.02*+ 59.93 48.00
hum, where is the problem then? The same occurs on Wayland, but in this case the repeated values are 59,94 hz and 50,00 hz.
The new Displays KCM solved this issue on my system. Operating System: Arch Linux KDE Plasma Version: 5.16.90 KDE Frameworks Version: 5.62.0 Qt Version: 5.13.1