https://bugs.kde.org/show_bug.cgi?id=422455

Tuomas Suutari <tuomas.suut...@gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |tuomas.suut...@gmail.com

--- Comment #4 from Tuomas Suutari <tuomas.suut...@gmail.com> ---
This happens here too. Ubuntu 20.04, powerdevil 5.18.4.1-0ubuntu1, kscreen
5.18.4.1-0ubuntu1. External display (connected via USB-C) doesn't power off
after the timeout, but the laptop's screen does. The laptop is ThinkPad T14
Gen1.

Stopping KScreen2 seems to help.

I've also had issues with the screen hot-plugging, even before stopping
KScreen2: When connecting or disconnecting the external display, KDE doesn't
seem to notice it at all. I found a workaround that if I run just "xrandr"
without any params, it will then notice the new/removed display and the desktop
is configured correctly. Could this power-off issue then be somehow related to
KScreen2 being jammed or something like that?

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