https://bugs.kde.org/show_bug.cgi?id=448064
--- Comment #4 from Hamlet <hamletgh...@gmail.com> --- Created attachment 146947 --> https://bugs.kde.org/attachment.cgi?id=146947&action=edit New crash information added by DrKonqi kwin_x11 (5.24.1) using Qt 5.15.2 - What I was doing when the application crashed: I was waking the screen from sleep. The system would switch off the two monitors after the set timeout (the system itself, kernel and all, does not sleep, just the monitors are turned off). When reawakening, the monitors are slow to react (one in particular can go back and forth a couple of times, spending a few seconds). On the first wake up, the crash happens and the panel which is usually at the bottom of the screen does not show up. This happens pretty much every first wake up in the session. If the monitors go sleeping again after a while, on waking chances are that instead the panel reappears. Usually the third wake up sees the crash again, and so forth. I may have a whole core file somewhere, if coredumpctl is nice with me. I believe this is strongly related to the original report, with which it shares the slowness of the response from the monitor hardware. This is kwin_x11. This is a new issue for me, since two weeks ago. I think the issue may have appeared either with kwin 5.23.5, or 5.23.5-r1 (that's Gentoo patch numbering, so I don't know how that translates into KDE). Definitely there with 5.24. Each time I update the whole system. -- Backtrace (Reduced): #4 0x00007efd569fee5c in KWin::Toplevel::isOnOutput (this=0x55f5c1943a10, output=0x55f5c18f7340) at /usr/src/debug/kde-plasma/kwin-5.24.1/kwin-5.24.1/src/toplevel.cpp:423 #5 0x00007efd56a2dde9 in KWin::Workspace::activeOutput (this=0x55f5c14f2190) at /usr/src/debug/kde-plasma/kwin-5.24.1/kwin-5.24.1/src/workspace.cpp:2419 #6 0x00007efd56aa9513 in KWin::TabBox::SwitcherItem::screenGeometry (this=<optimized out>) at /usr/src/debug/kde-plasma/kwin-5.24.1/kwin-5.24.1/src/tabbox/switcheritem.cpp:74 #7 0x00007efd568b7525 in KWin::TabBox::SwitcherItem::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /usr/src/debug/kde-plasma/kwin-5.24.1/kwin-5.24.1_build/src/kwin_autogen/WF44ZIICEP/moc_switcheritem.cpp:210 #8 0x00007efd568d04c3 in KWin::TabBox::SwitcherItem::qt_metacall (this=0x55f5c1f589e0, _c=QMetaObject::ReadProperty, _id=1, _a=0x7ffe9fbdb220) at /usr/src/debug/kde-plasma/kwin-5.24.1/kwin-5.24.1_build/src/kwin_autogen/WF44ZIICEP/moc_switcheritem.cpp:273 -- You are receiving this mail because: You are watching all bug changes.
