https://bugs.kde.org/show_bug.cgi?id=460341
René Fritz <rf-...@colorcube.de> changed:
What |Removed |Added
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CC| |rf-...@colorcube.de
--- Comment #62 from René Fritz <rf-...@colorcube.de> ---
I have a laptop with Nvidia graphics and driver version 510 (tried 515 and
520). KDE Neon 22.04
I use external monitors connected with HDMI and USB-C (which is display port?)
both in 4k.
Hotplug worked well but not always flawless in the past.
Lately only HDMI Monitor gets enabled on hotplug but not the one over USB-C.
This behavior seems to be the same which many described here.
I can enable the USB-C monitor using kcm_kscreen but it gets disabled
immediately.
Can't tell which updated caused it. It was before 22.04 was available I thin.
My workaround
- plug in the USB-C Monitor, it will not be enabled
- enable the USB-C Monitor using nvidia-settings
- plug in the HDMI Monitor
- the monitor layout configured with kcm_kscreen will be restored
To me it seems not the monitor layout is the problem but enabling a display
port monitor - maybe specific to nvidia?
I don't think the it's the nvidia driver because I'm pretty shure I used v 510
already when it still worked.
Slightly different and maybe not related:
I have another setup with two 4k daisy chained USB-C monitors. I had a problem
there that sometimes one monitor got not enabled and enabling him manually
using kcm_kscreen didn't work (nothing happens). Usually I tried plugin
multiple times until it worked. This behavior got much more worse with recent
update, which means it doesn't work 95% of the time.
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