[kwin] [Bug 523880] New: Lost window header/title

[email protected] Wed, 05 Aug 2026 06:35:18 +0000
Newsgroups gmane.comp.kde.devel.bugs
Message-ID <[email protected]/>
https://bugs.kde.org/show_bug.cgi?id=523880

            Bug ID: 523880
           Summary: Lost window header/title
    Classification: Plasma
           Product: kwin
      Version First 5.27.5
       Reported In:
          Platform: Debian stable
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

Application: kwin_x11 (5.27.5)

Qt Version: 5.15.8
Frameworks Version: 5.103.0
Operating System: Linux 6.1.0-18-amd64 x86_64
Windowing System: X11
Distribution: Debian GNU/Linux 12 (bookworm)
DrKonqi: 5.27.5 [CoredumpBackend]

-- Information about the crash:
After OS sleep-mode and login into session (already exist) - all desktops (3
diasplay) flashed and window lost title-bar (header), and restored back, but
positon of window is upper - on height title (header).

The crash can be reproduced sometimes.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault

           PID: 1273233 (kwin_x11)
           UID: 1000 (sgusev)
           GID: 1000 (sgusev)
        Signal: 11 (SEGV)
     Timestamp: Wed 2026-08-05 09:17:24 +04 (1h 9min ago)
  Command Line: /usr/bin/kwin_x11 --replace
    Executable: /usr/bin/kwin_x11
 Control Group:
/user.slice/user-1000.slice/[email protected]/session.slice/plasma-kwin_x11.service
          Unit: [email protected]
     User Unit: plasma-kwin_x11.service
         Slice: user-1000.slice
     Owner UID: 1000 (sgusev)
       Boot ID: 0f4be9e2ecc34b78a4f43b47a349bb9b
    Machine ID: 8239e1836fb9477987242b3e0ae624c6
      Hostname: mkws40
       Storage:
/var/lib/systemd/coredump/core.kwin_x11.1000.0f4be9e2ecc34b78a4f43b47a349bb9b.1273233.1785907044000000.zst
(present)
  Size on Disk: 16.1M
       Message: Process 1273233 (kwin_x11) of user 1000 dumped core.

                Module libsystemd.so.0 from deb systemd-252.30-1~deb12u2.amd64
                Module libudev.so.1 from deb systemd-252.30-1~deb12u2.amd64
                Stack trace of thread 1273233:
                #0  0x00007fcc46eaed14 pthread_sigmask (libc.so.6 + 0x8fd14)
                #1  0x00007fcc46e5b239 sigprocmask (libc.so.6 + 0x3c239)
                #2  0x00007fcc4a113e9b _ZN6KCrash15setCrashHandlerEPFviE
(libKF5Crash.so.5 + 0x4e9b)
                #3  0x00007fcc4a114b3e _ZN6KCrash19defaultCrashHandlerEi
(libKF5Crash.so.5 + 0x5b3e)
                #4  0x00007fcc46e5b050 n/a (libc.so.6 + 0x3c050)
                #5  0x000055fbd513a5a6 n/a (kwin_x11 + 0xb25a6)
                #6  0x000055fbd513ad5b n/a (kwin_x11 + 0xb2d5b)
                #7  0x00007fcc49c1cb67
_ZN4KWin18EffectsHandlerImpl14prePaintWindowEPNS_12EffectWindowERNS_18WindowPrePaintDataENSt6chrono8durationIlSt5ratioILl1ELl1000EEEE
(libkwin.so.5 + 0x21cb67)
                #8  0x00007fcc49cb91d3
_ZN4KWin14WorkspaceScene24preparePaintSimpleScreenEv (libkwin.so.5 + 0x2b91d3)
                #9  0x00007fcc49cb9685
_ZN4KWin14WorkspaceScene8prePaintEPNS_13SceneDelegateE (libkwin.so.5 +
0x2b9685)
                #10 0x00007fcc49bd81ef
_ZN4KWin10Compositor12prePaintPassEPNS_11RenderLayerE (libkwin.so.5 + 0x1d81ef)
                #11 0x00007fcc49bdb37f
_ZN4KWin10Compositor9compositeEPNS_10RenderLoopE (libkwin.so.5 + 0x1db37f)
                #12 0x00007fcc49bdd293
_ZN4KWin13X11Compositor9compositeEPNS_10RenderLoopE (libkwin.so.5 + 0x1dd293)
                #13 0x00007fcc47ee8f4f n/a (libQt5Core.so.5 + 0x2e8f4f)
                #14 0x00007fcc49b900c2
_ZN4KWin10RenderLoop14frameRequestedEPS0_ (libkwin.so.5 + 0x1900c2)
                #15 0x00007fcc49be4ed3 _ZN4KWin17RenderLoopPrivate8dispatchEv
(libkwin.so.5 + 0x1e4ed3)
                #16 0x00007fcc47ee8f4f n/a (libQt5Core.so.5 + 0x2e8f4f)
                #17 0x00007fcc47eecd6a _ZN6QTimer7timeoutENS_14QPrivateSignalE
(libQt5Core.so.5 + 0x2ecd6a)
                #18 0x00007fcc47edd50d _ZN7QObject5eventEP6QEvent
(libQt5Core.so.5 + 0x2dd50d)
                #19 0x00007fcc47562fae
_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5 +
0x162fae)
                #20 0x00007fcc47eb16f8
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5 +
0x2b16f8)
                #21 0x00007fcc47f08c31 _ZN14QTimerInfoList14activateTimersEv
(libQt5Core.so.5 + 0x308c31)
                #22 0x00007fcc47f094c4 n/a (libQt5Core.so.5 + 0x3094c4)
                #23 0x00007fcc45b1e7a9 g_main_context_dispatch
(libglib-2.0.so.0 + 0x547a9)
                #24 0x00007fcc45b1ea38 n/a (libglib-2.0.so.0 + 0x54a38)
                #25 0x00007fcc45b1eacc g_main_context_iteration
(libglib-2.0.so.0 + 0x54acc)
                #26 0x00007fcc47f09836
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x309836)
                #27 0x00007fcc47eb017b
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2b017b)
                #28 0x00007fcc47eb82d6 _ZN16QCoreApplication4execEv
(libQt5Core.so.5 + 0x2b82d6)
                #29 0x000055fbd50cb2d1 n/a (kwin_x11 + 0x432d1)
                #30 0x00007fcc46e4624a n/a (libc.so.6 + 0x2724a)
                #31 0x00007fcc46e46305 __libc_start_main (libc.so.6 + 0x27305)
                #32 0x000055fbd50cc7b1 n/a (kwin_x11 + 0x447b1)

                Stack trace of thread 1273249:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273252:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273259:
                #0  0x00007fcc46f1b15f __poll (libc.so.6 + 0xfc15f)
                #1  0x00007fcc45b1e9ae n/a (libglib-2.0.so.0 + 0x549ae)
                #2  0x00007fcc45b1eacc g_main_context_iteration
(libglib-2.0.so.0 + 0x54acc)
                #3  0x00007fcc47f0984e
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x30984e)
                #4  0x00007fcc47eb017b
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2b017b)
                #5  0x00007fcc47ccab87 _ZN7QThread4execEv (libQt5Core.so.5 +
0xcab87)
                #6  0x00007fcc4731a487 n/a (libQt5DBus.so.5 + 0x17487)
                #7  0x00007fcc47ccbd43 n/a (libQt5Core.so.5 + 0xcbd43)
                #8  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #9  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273248:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273251:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273287:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273286:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273250:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273290:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273288:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273291:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273293:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273289:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273258:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273295:
                #0  0x00007fcc46f1b15f __poll (libc.so.6 + 0xfc15f)
                #1  0x00007fcc45b1e9ae n/a (libglib-2.0.so.0 + 0x549ae)
                #2  0x00007fcc45b1eacc g_main_context_iteration
(libglib-2.0.so.0 + 0x54acc)
                #3  0x00007fcc47f09836
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x309836)
                #4  0x00007fcc47eb017b
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2b017b)
                #5  0x00007fcc47ccab87 _ZN7QThread4execEv (libQt5Core.so.5 +
0xcab87)
                #6  0x00007fcc47ccbd43 n/a (libQt5Core.so.5 + 0xcbd43)
                #7  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #8  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273253:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273254:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273292:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273283:
                #0  0x00007fcc46f1b15f __poll (libc.so.6 + 0xfc15f)
                #1  0x00007fcc45b1e9ae n/a (libglib-2.0.so.0 + 0x549ae)
                #2  0x00007fcc45b1eacc g_main_context_iteration
(libglib-2.0.so.0 + 0x54acc)
                #3  0x00007fcc47f09836
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x309836)
                #4  0x00007fcc47eb017b
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2b017b)
                #5  0x00007fcc47ccab87 _ZN7QThread4execEv (libQt5Core.so.5 +
0xcab87)
                #6  0x00007fcc49128555 n/a (libQt5Qml.so.5 + 0x328555)
                #7  0x00007fcc47ccbd43 n/a (libQt5Core.so.5 + 0xcbd43)
                #8  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #9  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)

                Stack trace of thread 1273294:
                #0  0x00007fcc46ea4e96 n/a (libc.so.6 + 0x85e96)
                #1  0x00007fcc46ea7558 pthread_cond_wait (libc.so.6 + 0x88558)
                #2  0x00007fcc3a50c059 n/a (iris_dri.so + 0x10c059)
                #3  0x00007fcc3a4be17b n/a (iris_dri.so + 0xbe17b)
                #4  0x00007fcc3a50bf97 n/a (iris_dri.so + 0x10bf97)
                #5  0x00007fcc46ea8134 n/a (libc.so.6 + 0x89134)
                #6  0x00007fcc46f287dc n/a (libc.so.6 + 0x1097dc)
                ELF object binary architecture: AMD x86-64

[New LWP 1273233]
[New LWP 1273249]
[New LWP 1273252]
[New LWP 1273259]
[New LWP 1273248]
[New LWP 1273251]
[New LWP 1273287]
[New LWP 1273286]
[New LWP 1273250]
[New LWP 1273290]
[New LWP 1273288]
[New LWP 1273291]
[New LWP 1273293]
[New LWP 1273289]
[New LWP 1273258]
[New LWP 1273295]
[New LWP 1273253]
[New LWP 1273254]
[New LWP 1273292]
[New LWP 1273283]
[New LWP 1273294]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/bin/kwin_x11 --replace'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fcc46eaed14 in pthread_sigmask () from
/lib/x86_64-linux-gnu/libc.so.6
[Current thread is 1 (Thread 0x7fcc42a609c0 (LWP 1273233))]
[Current thread is 1 (Thread 0x7fcc42a609c0 (LWP 1273233))]

Thread 21 (Thread 0x7fcbc67fc6c0 (LWP 1273294)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 20 (Thread 0x7fcbe3fff6c0 (LWP 1273283)):
#0  0x00007fcc46f1b15f in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc45b1e9ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc45b1eacc in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc47f09836 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcc47eb017b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcc47ccab87 in QThread::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcc49128555 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fcc47ccbd43 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#9  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 19 (Thread 0x7fcbc77fe6c0 (LWP 1273292)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 18 (Thread 0x7fcc2a7fc6c0 (LWP 1273254)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 17 (Thread 0x7fcc2affd6c0 (LWP 1273253)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 16 (Thread 0x7fcbc5ffb6c0 (LWP 1273295)):
#0  0x00007fcc46f1b15f in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc45b1e9ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc45b1eacc in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc47f09836 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcc47eb017b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcc47ccab87 in QThread::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcc47ccbd43 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#8  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 15 (Thread 0x7fcc29ffb6c0 (LWP 1273258)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 14 (Thread 0x7fcbe12b96c0 (LWP 1273289)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 13 (Thread 0x7fcbc6ffd6c0 (LWP 1273293)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 12 (Thread 0x7fcbc7fff6c0 (LWP 1273291)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 11 (Thread 0x7fcbe1aba6c0 (LWP 1273288)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 10 (Thread 0x7fcbe0ab86c0 (LWP 1273290)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7fcc309fd6c0 (LWP 1273250)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7fcbe2bfd6c0 (LWP 1273286)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7fcbe22bb6c0 (LWP 1273287)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7fcc2bfff6c0 (LWP 1273251)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7fcc319ff6c0 (LWP 1273248)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7fcc297fa6c0 (LWP 1273259)):
#0  0x00007fcc46f1b15f in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc45b1e9ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc45b1eacc in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc47f0984e in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcc47eb017b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcc47ccab87 in QThread::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcc4731a487 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fcc47ccbd43 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#9  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7fcc2b7fe6c0 (LWP 1273252)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7fcc311fe6c0 (LWP 1273249)):
#0  0x00007fcc46ea4e96 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fcc46ea7558 in pthread_cond_wait () from
/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fcc3a50c059 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007fcc3a4be17b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fcc3a50bf97 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007fcc46ea8134 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007fcc46f287dc in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7fcc42a609c0 (LWP 1273233)):
[KCrash Handler]
#5  0x000055fbd513a5a6 in ?? ()
#6  0x000055fbd513ad5b in ?? ()
#7  0x00007fcc49c1cb67 in
KWin::EffectsHandlerImpl::prePaintWindow(KWin::EffectWindow*,
KWin::WindowPrePaintData&, std::chrono::duration<long, std::ratio<1l, 1000l> >)
() from /lib/x86_64-linux-gnu/libkwin.so.5
#8  0x00007fcc49cb91d3 in KWin::WorkspaceScene::preparePaintSimpleScreen() ()
from /lib/x86_64-linux-gnu/libkwin.so.5
#9  0x00007fcc49cb9685 in KWin::WorkspaceScene::prePaint(KWin::SceneDelegate*)
() from /lib/x86_64-linux-gnu/libkwin.so.5
#10 0x00007fcc49bd81ef in KWin::Compositor::prePaintPass(KWin::RenderLayer*) ()
from /lib/x86_64-linux-gnu/libkwin.so.5
#11 0x00007fcc49bdb37f in KWin::Compositor::composite(KWin::RenderLoop*) ()
from /lib/x86_64-linux-gnu/libkwin.so.5
#12 0x00007fcc49bdd293 in KWin::X11Compositor::composite(KWin::RenderLoop*) ()
from /lib/x86_64-linux-gnu/libkwin.so.5
#13 0x00007fcc47ee8f4f in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fcc49b900c2 in KWin::RenderLoop::frameRequested(KWin::RenderLoop*)
() from /lib/x86_64-linux-gnu/libkwin.so.5
#15 0x00007fcc49be4ed3 in KWin::RenderLoopPrivate::dispatch() () from
/lib/x86_64-linux-gnu/libkwin.so.5
#16 0x00007fcc47ee8f4f in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fcc47eecd6a in QTimer::timeout(QTimer::QPrivateSignal) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007fcc47edd50d in QObject::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007fcc47562fae in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007fcc47eb16f8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007fcc47f08c31 in QTimerInfoList::activateTimers() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fcc47f094c4 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fcc45b1e7a9 in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fcc45b1ea38 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fcc45b1eacc in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fcc47f09836 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fcc47eb017b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007fcc47eb82d6 in QCoreApplication::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x000055fbd50cb2d1 in ?? ()
#30 0x00007fcc46e4624a in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#31 0x00007fcc46e46305 in __libc_start_main () from
/lib/x86_64-linux-gnu/libc.so.6
#32 0x000055fbd50cc7b1 in ?? ()

Reported using DrKonqi

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