https://bugs.kde.org/show_bug.cgi?id=440966
Bug ID: 440966
Summary: Screen locker does not activate when either "Present
Windows" or "Desktop Grid" effect is on
Product: kscreenlocker
Version: unspecified
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
SUMMARY
For some reason, the screen locker does not activate when the "Present Windows"
effect is currently on screen. This is a security risk since malicious
individuals can get right to the desktop without ever encountering a lock
screen.
STEPS TO REPRODUCE
Note: can only be done on laptops, unless your desktop PC has a dedicated sleep
button
1. Modify settings so that closing the laptop lid sleeps the computer
2. Make sure to have at least 2 programs open, then trigger the "Present
Windows" effect (hover mouse on upper-left corner of screen)
3. Sleep the computer by closing the laptop lid
4. Open the lid
OBSERVED RESULT
The screen locker is never triggered, therefore sending the user back to the
desktop without a password prompt
EXPECTED RESULT
Screen locker should activate regardless of whether or not Present Windows
effect was on screen
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.22.4
KDE Frameworks Version: 5.84.0
Qt Version: 5.15.2
Kernel Version: 4.19.203-1-lts419 (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Core™ i5-7200U CPU @ 2.50GHz
Memory: 11.5 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 620
ADDITIONAL INFORMATION
kscreenlocker version: 5.22.4-1
Note: same thing also happens on the "Desktop Grid" effect
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