Question about screen resolution in plasma 5 using x11 and a 4 K monitor arrangement.
René J.V. Bertin
rjvbertin at gmail.com
Sun Mar 13 12:21:57 GMT 2022
On Sunday March 13 2022 09:55:31 Stakanov wrote:
>Obviously the problem is not the graphics card, nor the monitor and the
>monitor is branched with DP on DP.
>The other monitor is a smaller Medion MD20666 which runs with 60 Hz on its
>native resolution (1920x1080).
Have you tried using each monitor separately?
It's my experience that XOrg doesn't always detect OR present the full range of resolutions. A typical one being missing from the list is the quite common 1366x768 resolution of (democratically priced ^^) small screens.
The solution is to define the resolution you want via xrandr and then add it to the monitor where it's missing:
For instance, to ensure I can run a distro on an external drive in VIrtualBox without messing up my desktop layout:
> xrandr --verbose --newmode "1366x768" 85.25 1366 1440 1576 1784 768 771 781 798 -hsync +vsync
> xrandr --verbose --addmode Virtual1 "1366x768"
Note that this apparently works at the screen level, but I presume the resolutions you mentioned were just that, not the union of resolutions of both screens. I also don't know how to obtain the various numbers other than by querying xrandr on a system that does recognise the resolution you're looking for.
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