Created attachment 875102 [details]
the problem on a photo
Desktop KDE/GNOME
Running sudo zypper dup caused a kernel update. Even after several restarts,
the second AOC monitor on the Lenovo w520 continued to work. After going into
energy saving mode a few times, the external display in question ran with a
resolution of 4:9. After a restart, the display in the KDE login screen (is
that SDDM?) gave an error message that it could not control the second monitor.
In KDE it continued to work with the wrong resolution and could not be changed
in the settings and was only displayed as VGA-1. After starting via grub(UEFI)
it was possible to record the following error message with Google lens
(unfortunately only parts of the message are preserved): 3.7901601[ T398)
0000:01:00.0: DRM: [DRM/00000001:kmsOutp] [LOAD_DET
load:07 (ret:7)
3.802496][ TOS
0000:01:00.0: DRM: [DRM/00000001:kmsOutp] [LOAD_DET
load:07 (ret:7)
0000:01:00.0: DRM: [DRM/00000001:kmsOutp] [LOAD_DET
[ 3.854827][ T85
load:07 (ret:7)
cau 0000:01:00.0: DRM: [DRM/00000001:kmsOutp] [LOAD_DET
[ 3.888158][ T851
load:07 (ret:7)
[ 3.921490][
T851 new 0000:01:08.0: DRM: [DRM/00000001:kmsOutp] [LOAD_DET
load:07 (ret:7)
The boot log showed no abnormalities. After resetting to a version about a week
old, the system worked as expected:
List of snapshots and updates:
----------------------------------------------------------------------------
-Snapshot that worked
-didn't work (when resetting, but before the update)
-didn't work (when resetting, but before the update)
-The update
-Sleep mode several times
-didn't work
-------------------------------------------------------
After resetting, everything worked until the next update. It should be
mentioned that the monitor was turned off several times while it was connected,
but it still works, so it's not a hardware defect. With other distros from the
life USB stick, everything worked as expected.
Once it's running, openuse tumbleweed is one of the most practical
distributions.