[kwin] [Bug 390306] kwin_wayland terminates when closing laptop lid

[Zamundaaa]

https://bugs.kde.org/show_bug.cgi?id=390306

Zamundaaa  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 CC||xaver.h...@gmail.com
 Status|REOPENED|RESOLVED

--- Comment #6 from Zamundaaa  ---
This bug report is really old now and the drm backend has been pretty much
rewritten twice since 2018, so I assume this is no longer happening

-- 
You are receiving this mail because:
You are watching all bug changes.

[kwin] [Bug 390306] kwin_wayland terminates when closing laptop lid

[postix]

https://bugs.kde.org/show_bug.cgi?id=390306

postix  changed:

   What|Removed |Added

 CC||pos...@posteo.eu

-- 
You are receiving this mail because:
You are watching all bug changes.

[kwin] [Bug 390306] kwin_wayland terminates when closing laptop lid

[David Edmundson]

https://bugs.kde.org/show_bug.cgi?id=390306

David Edmundson  changed:

   What|Removed |Added

 Resolution|UPSTREAM|---
 Ever confirmed|0   |1
 Status|RESOLVED|REOPENED
 CC||k...@davidedmundson.co.uk

-- 
You are receiving this mail because:
You are watching all bug changes.

[kwin] [Bug 390306] kwin_wayland terminates when closing laptop lid

[Nate Graham]

https://bugs.kde.org/show_bug.cgi?id=390306

Nate Graham  changed:

   What|Removed |Added

 Resolution|--- |UPSTREAM
 Status|REPORTED|RESOLVED

--- Comment #5 from Nate Graham  ---
#6  QMessageLogger::fatal (this=this@entry=0x7fffd70c5ba0,
msg=msg@entry=0x7ff994ac00b8 "The Wayland connection broke. Did the Wayland
compositor die?") at global/qlogging.cpp:893

This means that the compositor crashed. Due to a Qt issue, when this happens,
the app using it will crash too. KDE developers submitted a fix, but sadly it
was not merged. See https://codereview.qt-project.org/c/qt/qtwayland/+/308984.

Until we get better handling of this in Qt, the best we can do is debug why the
compositor crashed in the first place. So can you please get a backtrace of the
crash in kwin_wayland and then file a new bug report with it on kwin |
wayland-generic? Thanks!

You may be able to use the `coredumpctl` utility to retrieve the backtrace. See
https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports#Retrieving_a_backtrace_using_coredumpctl

-- 
You are receiving this mail because:
You are watching all bug changes.

[kwin] [Bug 390306] kwin_wayland terminates when closing laptop lid

[Alexander Mentyu]

https://bugs.kde.org/show_bug.cgi?id=390306

Alexander Mentyu  changed:

   What|Removed |Added

 CC||notux...@gmail.com

-- 
You are receiving this mail because:
You are watching all bug changes.

[kwin] [Bug 390306] kwin_wayland terminates when closing laptop lid

[Fabian Vogt]

https://bugs.kde.org/show_bug.cgi?id=390306

--- Comment #4 from Fabian Vogt  ---
kwin_wayland crash at the end (not really helpful I guess):

Thread 1 "kwin_wayland" received signal SIGABRT, Aborted.
0x7fba265cf0d0 in raise () from /lib64/libc.so.6
(gdb) bt
#0  0x7fba265cf0d0 in raise () at /lib64/libc.so.6
#1  0x7fba265d06b1 in abort () at /lib64/libc.so.6
#2  0x7fba269ec205 in __gnu_cxx::__verbose_terminate_handler() () at
/usr/lib64/libstdc++.so.6
#3  0x7fba269e9ff6 in  () at /usr/lib64/libstdc++.so.6
#4  0x7fba269e8fb9 in  () at /usr/lib64/libstdc++.so.6
#5  0x7fba269e9928 in __gxx_personality_v0 () at /usr/lib64/libstdc++.so.6
#6  0x7fba1f1ae3c3 in  () at /lib64/libgcc_s.so.1
#7  0x7fba1f1aebee in _Unwind_Resume () at /lib64/libgcc_s.so.1
#8  0x7fba27191d20 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#9  0x7fba271e3b64 in
QEventDispatcherUNIX::processEvents(QFlags) ()
at /usr/lib64/libQt5Core.so.5
#10 0x7fba1138242d in  () at
/usr/lib64/qt5/plugins/platforms/KWinQpaPlugin.so
#11 0x7fba0e1d5262 in KWin::DrmBackend::~DrmBackend() () at
/usr/lib64/qt5/plugins/org.kde.kwin.waylandbackends/KWinWaylandDrmBackend.so
#12 0x7fba0e1d55b9 in KWin::DrmBackend::~DrmBackend() () at
/usr/lib64/qt5/plugins/org.kde.kwin.waylandbackends/KWinWaylandDrmBackend.so
#13 0x7fba27184476 in QLibraryPrivate::unload(QLibraryPrivate::UnloadFlag)
() at /usr/lib64/libQt5Core.so.5
#14 0x7fba271867be in (anonymous
namespace)::qlibraryCleanup_dtor_class_::~qlibraryCleanup_dtor_class_() () at
/usr/lib64/libQt5Core.so.5
#15 0x7fba265d2052 in __cxa_finalize () at /lib64/libc.so.6
#16 0x7fba26f8bf63 in __do_global_dtors_aux () at
/usr/lib64/libQt5Core.so.5
#17 0x7ffcc9dc9f70 in  ()
#18 0x7fba29844123 in _dl_fini () at /lib64/ld-linux-x86-64.so.2

I also tried moving the laptop screen to the middle and then disabling it.
Result:

kscreen: Correcting output positions by: QPoint(1920,0)
kscreen: Moved output from QPoint(1920,0) to QPoint(0,0)
kscreen: Moved output from QPoint(3840,0) to QPoint(1920,0)
Service  ":1.3" unregistered
kwin_wayland: Couldn't find current GLX or EGL context.

Service  ":1.5" unregistered

I did also see the "Compositor does not support running without screens"
message once,
but could not reproduce that.

-- 
You are receiving this mail because:
You are watching all bug changes.

[kwin] [Bug 390306] kwin_wayland terminates when closing laptop lid

[Fabian Vogt]

https://bugs.kde.org/show_bug.cgi?id=390306

--- Comment #3 from Fabian Vogt  ---
I just confirmed that it's indeed kscreen what's causing this: Turing the
laptop screen off in the kscreen kcm kills the session as well.

This laptop uses switchable graphics (optimus, or whatever it's called), so
that might be related. Maybe the hardware switches from the intel GPU to the
nvidia one when the laptop screen gets deactivated? I don't see any flicker or
similiar on X or VTs though, so that's unlikely.

-- 
You are receiving this mail because:
You are watching all bug changes.

[kwin] [Bug 390306] kwin_wayland terminates when closing laptop lid

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=390306

Martin Flöser  changed:

   What|Removed |Added

  Flags||Wayland+, X11-

-- 
You are receiving this mail because:
You are watching all bug changes.

[kwin] [Bug 390306] kwin_wayland terminates when closing laptop lid

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=390306

--- Comment #2 from Martin Flöser  ---
What might be related is: https://bugs.kde.org/show_bug.cgi?id=389551#c7

-- 
You are receiving this mail because:
You are watching all bug changes.

[kwin] [Bug 390306] kwin_wayland terminates when closing laptop lid

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=390306

--- Comment #1 from Martin Flöser  ---
The crash on exit is unrelated, but also interesting: the DrmBackend should not
be destroyed from a dl_fini, but from destroying the QApplication. So we are in
an unorded destroy.

What would be interesting to see is what triggers KWin in going down. The log
does not give a hint :-(

-- 
You are receiving this mail because:
You are watching all bug changes.