https://bugs.kde.org/show_bug.cgi?id=516532
Bug ID: 516532
Summary: PLM crashes when booting from cold
Classification: Plasma
Product: plasma-login-manager
Version First 6.6.0
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Target Milestone: ---
SUMMARY
First, I'd like to say that my PC is a little bit old.
Graphics Platform: Wayland
Processors: 4 × AMD Phenom(tm) II X4 955 Processor
Memory: 14 GiB of RAM (13.1 GiB usable)
Graphics Processor: AMD RS880
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: GA-880GM-UD2H
I updated Plasma and later decided to try PLM. Everything was fine, until I
shut down my PC.
The fact is that when I replaced SDDM by PLM and hot-rebooted my PC, everything
was ok, I was able to set everything as I liked. After some testing I decided
to turn off my computer and it was then when everything happened.
When I turn the computer on (not rebooting), it hangs, the keyboard stops
responding and the screen goes blank. I've realized that the PC shuts down if I
push the power button, thus it's not completely frozen.
I've managed to avoid the PC from hanging by attempting to change to another
terminal, as soon as the PC is loading the OS. Most of the time I end with a
blank screen but the keyboard works, and can log in and reboot manually.
Sometimes I've got a functional terminal (with the screen on)
Reviewing previous boots, I've found that the problem appears to be that the
new PLM does not find a valid or available video port or complains that
something is "using" that video port thus it cannot get control of it so it
shows nothing, sometimes hanging, sometimes just displaying nothing.
In the backtrace I've found two different sources for the crash: the greeter
and the wallpaper
Greeter Backtrace:
#0 0x00007ff7672a7a2c in ?? () from /usr/lib/libc.so.6
#1 0x00007ff76724d1a0 in raise () from /usr/lib/libc.so.6
#2 0x00007ff7672345fe in abort () from /usr/lib/libc.so.6
#3 0x00007ff7678933ba in ?? () from /usr/lib/libQt6Core.so.6
#4 0x00007ff76789417e in QMessageLogger::fatal(char const*, ...) const () from
/usr/lib/libQt6Core.so.6
#5 0x00007ff7680e6029 in ?? () from /usr/lib/libQt6Gui.so.6
#6 0x00007ff76819f038 in QGuiApplicationPrivate::createEventDispatcher() ()
from /usr/lib/libQt6Gui.so.6
#7 0x00007ff767970285 in QCoreApplicationPrivate::init() () from
/usr/lib/libQt6Core.so.6
#8 0x00007ff76819f0ce in QGuiApplicationPrivate::init() () from
/usr/lib/libQt6Gui.so.6
#9 0x00007ff7681a028e in QGuiApplication::QGuiApplication(int&, char**, int)
() from /usr/lib/libQt6Gui.so.6
#10 0x00005556a2b0258e in ?? ()
#11 0x00007ff7672366c1 in ?? () from /usr/lib/libc.so.6
#12 0x00007ff7672367f9 in __libc_start_main () from /usr/lib/libc.so.6
#13 0x00005556a2b02ec5 in ?? ()
Wallpaper Backtrace:
#0 0x00007f38b5ea7a2c in ?? () from /usr/lib/libc.so.6
#1 0x00007f38b5e4d1a0 in raise () from /usr/lib/libc.so.6
#2 0x00007f38b5e345fe in abort () from /usr/lib/libc.so.6
#3 0x00007f38b64933ba in ?? () from /usr/lib/libQt6Core.so.6
#4 0x00007f38b649417e in QMessageLogger::fatal(char const*, ...) const () from
/usr/lib/libQt6Core.so.6
#5 0x00007f38b6ce6029 in ?? () from /usr/lib/libQt6Gui.so.6
#6 0x00007f38b6d9f038 in QGuiApplicationPrivate::createEventDispatcher() ()
from /usr/lib/libQt6Gui.so.6
#7 0x00007f38b6570285 in QCoreApplicationPrivate::init() () from
/usr/lib/libQt6Core.so.6
#8 0x00007f38b6d9f0ce in QGuiApplicationPrivate::init() () from
/usr/lib/libQt6Gui.so.6
#9 0x00007f38b6da028e in QGuiApplication::QGuiApplication(int&, char**, int)
() from /usr/lib/libQt6Gui.so.6
#10 0x0000561e06bdc748 in ?? ()
#11 0x00007f38b5e366c1 in ?? () from /usr/lib/libc.so.6
#12 0x00007f38b5e367f9 in __libc_start_main () from /usr/lib/libc.so.6
#13 0x0000561e06bdcd35 in ?? ()
STEPS TO REPRODUCE
1. Disable SDDM
2. Enable PLM
3. Shut down
4. Power-on
OBSERVED RESULT
Freeze. Keyboard stops responding with blank screen. Storage apparently keeps
going. System shuts down cleanly when power button is pressed.
EXPECTED RESULT
PLM should appear as when rebooting from hot.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.6.0
KDE Frameworks Version: 6.23.0
Qt Version: 6.10.2
Kernel Version: 6.18.9-arch1-2 (64-bit)
ADDITIONAL INFORMATION
Please tell me if a capture of the freezing booting process will be helpful in
order to try to get it.
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