Bug 496290

Summary:	Screen locker takes a long time to appear (or doesn't appear at all) when waking up from sleep on Intel Graphics + Wayland
Product:	[Plasma] plasmashell	Reporter:	User8395 <therealuser8395>
Component:	Screen locking	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED FIXED
Severity:	normal	CC:	john.kizer, nate, nowa
Priority:	NOR
Version First Reported In:	6.2.4
Target Milestone:	1.0
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed In:	6.3.4
Sentry Crash Report:

Description User8395 2024-11-15 02:52:20 UTC

SUMMARY
When waking up from sleep, a black screen is shown. After a few seconds, the screen lock may appear. If it doesn't, manual intervention via tty is required.

STEPS TO REPRODUCE
1. Suspend
2. Wake up

OBSERVED RESULT
The screen locker takes too long to appear or sometimes doesn't

EXPECTED RESULT
The screen locker should appear immediately.

SOFTWARE/OS VERSIONS
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux: Fedora 41 KDE Spin
KDE Plasma Version: 6.2.2
KDE Frameworks Version: 6.7.0
Qt Version: 6.8.0

ADDITIONAL INFORMATION

Comment 1 Nowa Ammerlaan 2024-11-20 11:08:06 UTC

> If it doesn't, manual intervention via tty is required.

What kind of manual intervention do you do to work around this? On my end only hard restarting the display manager seems to work. Tried blindly typing the password and using loginctl to unlock. This started happening relatively recent.

Linux: Gentoo (kernel 6.11.9)
KDE Plasma Version: 6.2.3
KDE Frameworks Version: 6.8.0
Qt Version: 6.7.3

Happens on kwin_wayland, x11 not tested. Happens on two different machines with Intel GPUs.

Comment 2 User8395 2024-11-20 11:15:05 UTC

(In reply to Nowa Ammerlaan from comment #1)
> > If it doesn't, manual intervention via tty is required.
> 
> What kind of manual intervention do you do to work around this? On my end
> only hard restarting the display manager seems to work. Tried blindly typing
> the password and using loginctl to unlock. This started happening relatively
> recent.
> 
> Linux: Gentoo (kernel 6.11.9)
> KDE Plasma Version: 6.2.3
> KDE Frameworks Version: 6.8.0
> Qt Version: 6.7.3
> 
> Happens on kwin_wayland, x11 not tested. Happens on two different machines
> with Intel GPUs.

`# loginctl unlock-session 2`

Comment 3 John Kizer 2024-12-02 19:13:05 UTC

Hi - for the original reporter User8395, what graphics card and session type (Wayland or X11) are you using? There are a few different bug reports around Kscreenlocker and I'm hoping to at least help connect ones together that might have similar root causes. Thanks!

Comment 4 User8395 2024-12-02 19:14:40 UTC

(In reply to John Kizer from comment #3)
> Hi - for the original reporter User8395, what graphics card and session type
> (Wayland or X11) are you using? There are a few different bug reports around
> Kscreenlocker and I'm hoping to at least help connect ones together that
> might have similar root causes. Thanks!

Intel Iris Xe Integrated Graphics on Wayland

Comment 5 John Kizer 2024-12-03 00:09:35 UTC

Thanks! Adding to the bug title here as that appears to be a common thread on this one

Comment 6 Nate Graham 2025-05-07 18:57:27 UTC

Sorry we were not able to get to this yet. Can you still reproduce the issue in Plasma 6.3.4 or later? Thanks a lot!

Comment 7 User8395 2025-05-07 18:59:40 UTC

(In reply to Nate Graham from comment #6)
> Sorry we were not able to get to this yet. Can you still reproduce the issue
> in Plasma 6.3.4 or later? Thanks a lot!

It looks like the issue was fixed

Comment 8 Nate Graham 2025-05-07 19:00:45 UTC

That's great news! Thanks for checking.