https://bugs.kde.org/show_bug.cgi?id=432697
Bug ID: 432697
Summary: Quick re-login causes ACPI ERRORs and a brocken plasma
session.
Product: plasmashell
Version: 5.20.5
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: generic-crash
Assignee: plasma-b...@kde.org
Reporter: unsecure...@gmail.com
Target Milestone: 1.0
Created attachment 135537
--> https://bugs.kde.org/attachment.cgi?id=135537&action=edit
dmesg from failed relogin attempts
SUMMARY
When I "re-login" into plasma "quickly", it freezes after correctly entering
the password. I can still move the cursor, but I cant really do anything.
Restarting sddm via a second tty brings my login screen back, but when I enter
the PW, I get the same situation. I have to reboot to fix it.
STEPS TO REPRODUCE
1. Boot and sign in (works without problems)
2. Sign out (I.e. via KDE Menu)
3. Sign in "quickly", by quickly I don't mean: "Try as hard as you can", but
just like when you simply want to sign out and back in again. (Some settings
and installations require that)
This does not happen if I let a minute pass between signing out and back in!
OBSERVED RESULT
After typing in my PW and hitting enter, plasma freezes. I can still move the
cursor and use ctrl+alt+f2 to get a different tty, but the original shell is
unusable. I tried `systemctl restart display-manager` and `sddm` and `pkill X`.
That allows me to type in my password again, but it also freezes up again. I
have to reboot the system to get a plasma session working again.
The first time the freeze happens, I am seeing ACPI errors in dmesg.
I then systemctl restart sddm, try signing in again and get supressed callbacks
in dmesg.
After some more time, while I am saving the dmesg outputs, sddm apparently
restarts itself: acc. to dmesg it experienced a segfault.
I try signing in again, no luck. Dmesg shows "suppressed callbacks".
I am attaching the annoted dmesg.
EXPECTED RESULT
Just wanna sign back in. :)
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux 5.10.14-arch1-1 plasmashell 5.20.5
(available in About System)
KDE Plasma Version: 5.20.5
KDE Frameworks Version: Not applicable I guess
Qt Version: Not applicable I guess
ADDITIONAL INFORMATION
Not seeing a ~/.xsession-errors
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