Bug 454853

Summary:	When in present windows mode, if the computer goes in standby mode, the computer stays unlocked
Product:	[Plasma] kwin	Reporter:	Aurélien Casteilla <aurelien.casteilla>
Component:	effects-present-windows	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	major	CC:	kishore96, nate
Priority:	NOR
Version First Reported In:	5.24.5
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Aurélien Casteilla 2022-06-04 21:30:01 UTC

SUMMARY
When in present windows mode, if the computer goes in standby mode, the computer stays unlocked


STEPS TO REPRODUCE
1. Enter in the present windows mode (by reaching a hot corner or pressing Ctrl+F10)
2. Do not click on a window or the background.
3. Enter in standby mode (for example by closing the lid if it's a laptop)
4. Leave the standby mode (by reopening the laptop's lid)

OBSERVED RESULT
The computer stays in the present windows mode, without asking for a password.
If the user clicks on a window or the background, he can continue using the computer without any kind of authentication.

EXPECTED RESULT
The computer should ask for a password, before continuing in the present windows mode.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.18.1-zen1-1-zen
(available in About System)
KDE Plasma Version: 5.24.5
KDE Frameworks Version: 5.94.0
Qt Version: 5.15.4

ADDITIONAL INFORMATION
Distribution: Garuda Linux (Dr460nized edition) (Arch-based)
Display server: X11

Comment 1 Nate Graham 2022-06-06 19:52:37 UTC

Unfortunately this is an unfixable bug on X11 due to the way X11 works. It is already fixed on Wayland, where fixes of this sort are possible.