https://bugs.kde.org/show_bug.cgi?id=445253

--- Comment #9 from phrxmd <philipp.reichm...@gmail.com> ---
Created attachment 144765
  --> https://bugs.kde.org/attachment.cgi?id=144765&action=edit
drm_info output when the screen is stuck at 2560x1440

It's happened again, now my external screen is stuck at 2560x1440. 
I can set it to a larger resolution, but the physical resolution of the screen
does not change - there seems to be a larger screen buffer of which I see only
the bottom left corner. 

What I did was to unplug an USB device (a Brother QL-700 label printer, if it
matters) from one of the USB ports on my laptop. At that moment the screen went
black. In order to bring it back up again, I deactivated it in System Settings
(resulting in a Plasmashell crash). When I reactivated it, it came up at
2560x1440 and has been stuck at the resolution since.

Attached is the drm_info output for the case when it's stuck at 2560x1440.

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