https://bugs.kde.org/show_bug.cgi?id=459441
Bug ID: 459441
Summary: KDE windows etc are still visible after resume, and
before the screen is locked
Classification: Plasma
Product: kwin
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: core
Assignee: kwin-bugs-n...@kde.org
Reporter: h...@webnet.org.uk
Target Milestone: ---
Not sure where this fits.
SUMMARY
When I close my laptop lid, the machine suspends. When I open it, all my
windows are visible with potentially sensitive information for a second or so
before the screen lock kicks in.
STEPS TO REPRODUCE
1. Turn on the computer
2. Do something
3. Close the lid
4. Wait for the machine to suspend
5. Open the lid
6. Observe sensitive data
OBSERVED RESULT
The whole screen is visible for > 500ms before the lock screen kicks in.
Someone not privileged to see that information could view some of that
information, or if they've observed the effect a few times they could be
prepared with a mobile phone or camera.
EXPECTED RESULT
The screen should be cleared (or overlaid with a black window) before the
machine suspends, so that it's still clear inbetween resume and screen lock. I
don't know if it's possible but it would be a good addition. This is not a new
behaviour, so it's not practical to list all the versions of KDE with which
this behaviour could be observed.
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