https://bugs.kde.org/show_bug.cgi?id=370280
Bug ID: 370280
Summary: [multiscreen] Turning off screen makes kwin crash
Product: kwin
Version: git master
Platform: Compiled Sources
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: platform-drm
Assignee: kwin-bugs-n...@kde.org
Reporter: bhus...@gmail.com
In dual-monitor setup turning off one screen makes kwin_wayland crash,
following is backtrace.
Steps to reproduce:
- Login into kwin session
- Turnoff monitor
- crash
Backtrace:
#0 0x0000000000000031 in ?? ()
#1 0x00007ffb90265ea0 in KWin::DrmBuffer::releaseGbm (this=0x2275ff0) at
/home/bshah/kdesrc/source/kwin/plugins/platforms/drm/drm_buffer.cpp:136
#2 0x00007ffb90265e6a in KWin::DrmBuffer::~DrmBuffer (this=0x2275ff0) at
/home/bshah/kdesrc/source/kwin/plugins/platforms/drm/drm_buffer.cpp:109
#3 0x00007ffb90265d27 in KWin::gbmCallback (bo=0x17cda20, data=0x16bac70) at
/home/bshah/kdesrc/source/kwin/plugins/platforms/drm/drm_buffer.cpp:68
#4 0x00007ffb9763ee93 in gbm_bo_destroy () from /usr/lib/libgbm.so.1
#5 0x00007ffb9c67318f in ?? () from /usr/lib/libEGL.so.1
#6 0x00007ffb9c66b675 in ?? () from /usr/lib/libEGL.so.1
#7 0x00007ffb9c660c53 in eglMakeCurrent () from /usr/lib/libEGL.so.1
#8 0x00007ffb9026e4f3 in KWin::EglGbmBackend::makeContextCurrent
(this=0x17d3750, output=...) at
/home/bshah/kdesrc/source/kwin/plugins/platforms/drm/egl_gbm_backend.cpp:180
#9 0x00007ffb9026ea7a in KWin::EglGbmBackend::prepareRenderingForScreen
(this=0x17d3750, screenId=0) at
/home/bshah/kdesrc/source/kwin/plugins/platforms/drm/egl_gbm_backend.cpp:265
#10 0x00007ffb9026ebc6 in non-virtual thunk to
KWin::EglGbmBackend::prepareRenderingForScreen(int) () at
/home/bshah/kdesrc/source/kwin/plugins/platforms/drm/egl_gbm_backend.cpp:262
#11 0x00007ffbabdba5e4 in KWin::SceneOpenGL::paint (this=0x1947af0, damage=...,
toplevels=...) at /home/bshah/kdesrc/source/kwin/scene_opengl.cpp:701
#12 0x00007ffbabd9530b in KWin::Compositor::performCompositing (this=0x17d6cd0)
at /home/bshah/kdesrc/source/kwin/composite.cpp:737
#13 0x00007ffbabd965c8 in KWin::Compositor::timerEvent (this=0x17d6cd0,
te=0x7ffc3c171050) at /home/bshah/kdesrc/source/kwin/composite.cpp:625
#14 0x00007ffba27e0303 in QObject::event(QEvent*) () from
/usr/lib/libQt5Core.so.5
#15 0x00007ffba3493e3c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/libQt5Widgets.so.5
#16 0x00007ffba349b5b1 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#17 0x00007ffba27b3c80 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#18 0x00007ffba280751e in QTimerInfoList::activateTimers() () from
/usr/lib/libQt5Core.so.5
#19 0x00007ffba28054a8 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#20 0x00007ffb9204f45d in
QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /opt/kde/lib64/plugins/platforms/KWinQpaPlugin.so
#21 0x00007ffba27b20da in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#22 0x00007ffba27ba5cc in QCoreApplication::exec() () from
/usr/lib/libQt5Core.so.5
#23 0x000000000040c6f4 in main (argc=4, argv=0x7ffc3c171c78) at
/home/bshah/kdesrc/source/kwin/main_wayland.cpp:741
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