https://bugs.kde.org/show_bug.cgi?id=403563
--- Comment #20 from Jonathan Wakely <zi...@kayari.org> ---
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
22860 jwakely 20 0 2048664 399404 187656 S 96.3 0.6 0:32.10
QSGRenderThread
3222 jwakely 20 0 2048664 399404 187656 S 0.3 0.6 0:07.03
plasmashell
3238 jwakely 20 0 2048664 399404 187656 S 0.0 0.6 0:00.17
QDBusConnection
3239 jwakely 20 0 2048664 399404 187656 S 0.0 0.6 0:00.51
QXcbEventQueue
3352 jwakely 20 0 2048664 399404 187656 S 0.0 0.6 0:00.31
QQmlThread
3363 jwakely 20 0 2048664 399404 187656 S 0.0 0.6 0:00.31 Qt
bearer threa
3508 jwakely 20 0 2048664 399404 187656 S 0.0 0.6 0:01.50
QQuickPixmapRea
3577 jwakely 20 0 2048664 399404 187656 S 0.0 0.6 0:00.00
CPMMListener
3588 jwakely 20 0 2048664 399404 187656 S 0.0 0.6 0:00.07
plasmashell
3728 jwakely 20 0 2048664 399404 187656 S 0.0 0.6 0:00.00
KCupsConnection
4218 jwakely 20 0 2048664 399404 187656 S 0.0 0.6 0:00.65
QSGRenderThread
8537 jwakely 20 0 2048664 399404 187656 S 0.0 0.6 0:00.34
QSGRenderThread
21405 jwakely 20 0 2048664 399404 187656 S 0.0 0.6 0:00.05
QSGRenderThread
21413 jwakely 20 0 2048664 399404 187656 S 0.0 0.6 0:00.38
QSGRenderThread
That thread is running code from the nvidia drivers, so maybe that's where the
problem is:
Thread 14 (Thread 0x7fdd7d5ba6c0 (LWP 22860) "QSGRenderThread"):
#0 0x00007fddcc52221f in __GI___poll (fds=0x7fdd7d5b95b8, nfds=1,
timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007fddb2912a50 in () at /lib64/libnvidia-glcore.so.530.41.03
#2 0x00007fddb29c3e51 in () at /lib64/libnvidia-glcore.so.530.41.03
#3 0x00007fddb9aefe1c in () at /lib64/libGLX_nvidia.so.0
#4 0x00007fddb9abfe30 in () at /lib64/libGLX_nvidia.so.0
#5 0x00007fddc874fe21 in QGLXContext::swapBuffers(QPlatformSurface*)
(this=0x7fdd582c79d0, surface=0x55b4cb438680) at qglxintegration.cpp:637
#6 0x00007fddcea479db in QSGRenderThread::syncAndRender(QImage*)
(this=this@entry=0x55b4cd1bc1c0, grabImage=grabImage@entry=0x0) at
scenegraph/qsgthreadedrenderloop.cpp:869
#7 0x00007fddcea480eb in QSGRenderThread::run() (this=0x55b4cd1bc1c0) at
scenegraph/qsgthreadedrenderloop.cpp:1042
#8 0x00007fddccae855b in operator() (__closure=<optimized out>) at
thread/qthread_unix.cpp:350
#9 (anonymous
namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> >
(t=<optimized out>) at thread/qthread_unix.cpp:287
#10 QThreadPrivate::start(void*) (arg=0x55b4cd1bc1c0) at
thread/qthread_unix.cpp:310
#11 0x00007fddcc4ae12d in start_thread (arg=<optimized out>) at
pthread_create.c:442
#12 0x00007fddcc52fbc0 in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
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