| Summary: | Unplugging/disconnecting Wacom tablet causes KDE Plasma and related applications to crash in QtWayland::zwp_tablet_pad_v2::handle_removed() | ||
|---|---|---|---|
| Product: | [Plasma] plasmashell | Reporter: | June A. <degennnnn> |
| Component: | generic-crash | Assignee: | Plasma Bugs List <plasma-bugs> |
| Status: | RESOLVED UPSTREAM | ||
| Severity: | crash | CC: | ArcangelZero7, atsuzuki, autumn, easonqq0000, josh, kde, kdedev, nate, reza.jahanbakhshi, yasumora.media |
| Priority: | HI | ||
| Version: | 6.2.3 | ||
| Target Milestone: | 1.0 | ||
| Platform: | Arch Linux | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed In: | ||
| Sentry Crash Report: | https://crash-reports.kde.org/organizations/kde/issues/88779/events/3c5202f5a182440ca85979016b150b45/ | ||
| Attachments: | The backtrace produced by Dr. Konqi | ||
Thread 1 (Thread 0x747806fc9a00 (LWP 42864)): [KCrash Handler] #5 0x000074780e3a7387 in QtWayland::zwp_tablet_pad_v2::handle_removed (data=0x61d4c72bb280, object=0x7477f400a360) at /usr/src/debug/qt6-wayland/build/src/client/qwayland-tablet-unstable-v2.cpp:1330 #6 0x000074780e2da596 in ffi_call_unix64 () at ../src/x86/unix64.S:104 #7 0x000074780e2d700e in ffi_call_int (cif=cif@entry=0x7fffded78f60, fn=<optimized out>, rvalue=<optimized out>, avalue=<optimized out>, closure=closure@entry=0x0) at ../src/x86/ffi64.c:673 #8 0x000074780e2d9bd3 in ffi_call (cif=cif@entry=0x7fffded78f60, fn=<optimized out>, rvalue=rvalue@entry=0x0, avalue=avalue@entry=0x7fffded79030) at ../src/x86/ffi64.c:710 #9 0x000074780fe4d8b0 in wl_closure_invoke (closure=closure@entry=0x7477f4016860, target=<optimized out>, target@entry=0x7477f400a360, opcode=opcode@entry=7, data=<optimized out>, flags=1) at ../wayland-1.23.1/src/connection.c:1228 #10 0x000074780fe4e139 in dispatch_event (display=display@entry=0x61d4c4a8e5f0, queue=queue@entry=0x61d4c4a8e6e8) at ../wayland-1.23.1/src/wayland-client.c:1674 #11 0x000074780fe4e553 in dispatch_queue (display=0x61d4c4a8e5f0, queue=0x61d4c4a8e6e8) at ../wayland-1.23.1/src/wayland-client.c:1820 #12 wl_display_dispatch_queue_pending (display=0x61d4c4a8e5f0, queue=0x61d4c4a8e6e8) at ../wayland-1.23.1/src/wayland-client.c:2062 #13 0x000074780e377566 in QtWaylandClient::QWaylandDisplay::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /usr/src/debug/qt6-wayland/qtwayland/src/client/qwaylanddisplay.cpp:227 #14 0x000074780d3b247a in doActivate<false> (sender=<optimized out>, signal_index=<optimized out>, argv=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobject.cpp:4132 #15 0x000074780d5bf765 in QAbstractEventDispatcher::awake (this=0x61d4c4a8c5e0) at /usr/src/debug/qt6-base/build/src/corelib/Core_autogen/include/moc_qabstracteventdispatcher.cpp:158 #16 QEventDispatcherGlib::processEvents (this=0x61d4c4a8c5e0, flags=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:403 #17 0x000074780d364566 in QEventLoop::processEvents (this=0x7fffded79450, flags=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventloop.cpp:100 #18 QEventLoop::exec (this=0x7fffded79450, flags=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qeventloop.cpp:191 #19 0x000074780d359a2f in QCoreApplication::exec () at /usr/src/debug/qt6-base/qtbase/src/corelib/global/qflags.h:74 #20 0x000074780f4fa74a in QApplication::exec () at /usr/src/debug/qt6-base/qtbase/src/widgets/kernel/qapplication.cpp:2562 #21 0x000061d4950b017f in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma-workspace/plasma-workspace-6.2.3/shell/main.cpp:192 *** Bug 496132 has been marked as a duplicate of this bug. *** I *think* this is https://bugreports.qt.io/projects/QTBUG/issues/QTBUG-130314 but this smells like a 6.8.0 regression. *** Bug 496554 has been marked as a duplicate of this bug. *** *** Bug 496761 has been marked as a duplicate of this bug. *** This is now fixed in Qt *Qt 6.8.2 or 6.9.0 *** Bug 495107 has been marked as a duplicate of this bug. *** *** Bug 496132 has been marked as a duplicate of this bug. *** (In reply to David Edmundson from comment #7) > *Qt 6.8.2 or 6.9.0 Looks like 6.8.2, based on https://bugreports.qt.io/browse/QTBUG-130314 *** Bug 496953 has been marked as a duplicate of this bug. *** |
Created attachment 175707 [details] The backtrace produced by Dr. Konqi SUMMARY My Wacom Intuos CTH-490 works perfectly fine on KDE Plasma on Arch Linux. However, if the tablet is disconnected (whether via the wireless receiver, turning off the tablet while the wireless receiver is plugged in, or simply unplugging it while connected via the cable), plasmashell (and a whole bunch of other KDE Plasma-related services crash and Plasma restarts. Also, I do not have to use the stylus itself. Connecting and then disconnecting it is all it takes to crash the desktop. I'm not sure why this happens, and I'm very sure this isn't just my Zephyrus GA401QC (or its RTX 3050) being weird as usual, because the behavior also appears on my second laptop (Ideapad 3 14ADA05). The issue presents itself on Fedora too. This has never happened before the, I believe, 6.2.2 update for KDE Plasma. The behavior is consistent; everytime I disconnect my tablet (if it's been properly connected, of course), everything crashes. No exception, unless I plug it out as soon as it's been plugged in. Of Note: Non-KDE applications do not crash Ever. Firefox, Spotify, Steam, etc. all continue running as if nothing happened. Also, the other KDE apps also backtraces as well. I don't know how similar they are to each other though, but I can include them if need be. STEPS TO REPRODUCE 1. Plug in Wacom Intuos CTH-490, probably give it a second or two 2. Unplug it, whether through the USB cable, the USB receiver, or turning the tablet off via the wireless module while still connected to the receiver OBSERVED RESULT Everything KDE related crashes. The desktop environment, Settings, Konsole, Yakuake, Discover, and Dr. Konqi (if it was open prior to me testing the bug) all crash. Non-KDE related applications do not crash, however. EXPECTED RESULT Plasma working as usual. SOFTWARE/OS VERSIONS Linux: 6.11.6-arch1-1 KDE Plasma Version: 6.2.2 - 6.2.3 KDE Frameworks Version: 6.8.0 Qt Version: 6.8.0 Graphics Platform: Wayland