https://bugs.kde.org/show_bug.cgi?id=483163
Bug ID: 483163
Summary: blank screen on lock screen activation when using
breeze plasma style
Classification: Plasma
Product: kscreenlocker
Version: 6.0.1
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: giacomo.loz...@protonmail.com
Target Milestone: ---
SUMMARY
When activating lock screen (via shortcut, menu option or timer), the screen
becomes blank. The screen is not turned off and maintains the backlight on, but
nothing is drawn on screen. Cursor can be seen when moved, and password can be
blindly typed to return into desktop, which becomes immediately visible again.
Also, when the lock screen is blank like this, switching to another virtual
terminal and returning to the lock screen vt will cause it to be displayed
correctly.
This behavior only occurs when Breeze is selected as plasma style, and it
happens most of the time. Switching to Breeze Light, Breeze Dark or Oxygen will
result in the lock screen being displayed correctly 100% of the time. Switching
back to Breeze will cause the wrong behavior again.
Please note that this bug is separate from
https://bugs.kde.org/show_bug.cgi?id=481308 which is powerdevil-related and
causes the screen to turn off. Energy settings make no difference for this
issue, the screen is still on but blank. The difference to behaviour seems to
be made by changing the plasma style.
STEPS TO REPRODUCE
1. Use Breeze as plasma style
2. Activate lock screen using keyboard shortcut, launcher option or wait for
it to be activated by inactivity
3. 19 times out of 20, the lock screen will be blank, even if the screen is
turned on
OBSERVED RESULT
Blank screen, with the screen turned on. Moving cursor around makes it visible.
EXPECTED RESULT
Lock screen window correctly drawn.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.0.1
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Kernel Version: 6.7.9-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 8 × AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx
Memory: 13.6 GiB of RAM
Graphics Processor: AMD Radeon Vega 10 Graphics
ADDITIONAL INFORMATION
Speculation: one notable difference between Breeze and the other plasma styles
(Breeze Light, Dark, etc.) is that Breeze is the only style that is designed to
follow the user-chosen color scheme. So it is possible that color scheme
implementation in plasma is playing a role into the issue. I have tried
changing the color scheme (i.e., using the one from wallpaper or the default
one) but changing the scheme itself makes no difference. The issue only seems
to occur with the screen locker and I have not seen it anywhere else in plasma.
--
You are receiving this mail because:
You are watching all bug changes.
