Bug 468178 - plasma-mobile crashes after unlocking with "kwin_core: Detected a touch move that never has been down, discarding"
Summary: plasma-mobile crashes after unlocking with "kwin_core: Detected a touch move ...
Status: RESOLVED WORKSFORME
Alias: None
Product: plasma-mobile
Classification: Plasma
Component: general (show other bugs)
Version: unspecified
Platform: Debian testing Linux
: NOR crash
Target Milestone: ---
Assignee: Plasma Mobile Bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-04-05 17:48 UTC by Marco Mattiolo
Modified: 2024-12-30 23:02 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
journalctl log from crashed system (1.42 MB, text/plain)
2023-04-05 17:48 UTC, Marco Mattiolo
Details

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Description Marco Mattiolo 2023-04-05 17:48:16 UTC
Created attachment 157876 [details]
journalctl log from crashed system

SUMMARY
Hi and thank you for developing plasma-mobile!
Here Mobian bookworm with plasma-mobile 5.27.2 on OG PP. Debian is now in hard freeze, then we have to stick with 5.27.2 or cherry-pick any needed patch. Just one change on my system with respect to Debian repository: kwin is patched with [1].

From time to time plasma-mobile happens to crash. I don't know exactly the reason, maybe it's the long runtime, maybe when the session gets locked and unlocked in short sequence.
In the attached logs:
18.03.33 resetting eg25-manager service in order to restart modem which had lost carrier connection
then I pressed power key to lock session while waiting for modem to restart, as it takes ca.20seconds
18.03.34 kwin_wayland_wrapper starts to spit out log messages like mad, specifically
kwin_wayland_wrapper[1017]: kwin_core: Detected a touch move that never has been down, discarding
gets repeated a lot
on the screen, after unlocking I get the usual white writing on black background suggesting to unlock session from tty to recover situation
then I've pressed power key some times, that in my experience gets greetd (the login manager service) to recognize session has crashed and to take over the device's control: this happens around 18.06.04

SOFTWARE/OS VERSIONS
Linux: 6.1-sunxi64
KDE Plasma Version: 5.27.2
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8

[1] https://salsa.debian.org/qt-kde-team/kde/kwin/-/merge_requests/6
Comment 1 Marco Mattiolo 2024-12-30 23:02:32 UTC
Closing this bug, as it refers to an old plasma-mobile version. Will reopen/report again in case I'm able to replicate even on Plasma6