https://bugs.kde.org/show_bug.cgi?id=507343

Zamundaaa <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |WAITINGFORINFO
             Status|REPORTED                    |NEEDSINFO
                 CC|                            |[email protected]

--- Comment #5 from Zamundaaa <[email protected]> ---
> [ 1512.751780] amdgpu 0000:03:00.0: [drm:drm_sysfs_connector_hotplug_event] 
> [CONNECTOR:101:DP-2] generating connector hotplug event
> [ 1512.751833] amdgpu 0000:03:00.0: [drm:drm_client_dev_hotplug] fbdev: ret=0
> [ 1516.397131] amdgpu 0000:03:00.0: [drm:drm_sysfs_connector_hotplug_event] 
> [CONNECTOR:101:DP-2] generating connector hotplug event
> [ 1516.397177] amdgpu 0000:03:00.0: [drm:drm_client_dev_hotplug] fbdev: ret=0
Oof, almost 4 seconds apart, that's the worst case I've seen so far.
If you manage to undo whatever AI-hallucinated things you did to your system to
reproduce the problem again, please try putting
KWIN_DPMS_WORKAROUND_TIMEOUT=5000
into /etc/environment + rebooting, and check if that helps.

The default is 2000(ms), I'm not sure how much we want to increase that still.
Maybe increasing it to 5s would still be okay; unplugging and immediately
re-plugging a display that quickly and expecting it to wake up in that scenario
is rather unlikely.

(In reply to Guido from comment #4)
> I can confirm this on Plasma 6.4.5, but it seems a bit different
That is a different issue, and will be fixed by
https://invent.kde.org/plasma/kwin/-/merge_requests/8282

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