https://bugs.kde.org/show_bug.cgi?id=401272

stefan.schwar...@gmx.net changed:

           What    |Removed                     |Added
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                 CC|                            |stefan.schwar...@gmx.net

--- Comment #7 from stefan.schwar...@gmx.net ---
I may have the same or a similar issue (debian-testing, plasma 5.14.5, Intel
graphics, nvidia blacklisted) which appeared at the same time as an update
about a month ago which also broke kwin_x11. The panel display only freezes at
random points while e.g. I can still click on its components and get a
reaction. However, of course, state changes are not reflected in the panel any
longer as the display remains frozen. I have never observed it unfreeze, even
after hours. 
Kill/restart will get things back to normal.

I can attach gdb and get a stack trace - maybe it helps:

Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f56fcb96d0f in __GI___poll (fds=0x55ad02e099b0, nfds=14, timeout=27846)
at ../sysdeps/unix/sysv/linux/poll.c:29
29      ../sysdeps/unix/sysv/linux/poll.c: No such file or directory.
(gdb) where
#0  0x00007f56fcb96d0f in __GI___poll (fds=0x55ad02e099b0, nfds=14,
timeout=27846) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f56fb08109e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f56fb0811bf in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f56fd1127f1 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
    at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f56fd0bb71b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f56fd0c31c2 in QCoreApplication::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x000055acf72f9235 in  ()
#7  0x00007f56fcacdbbb in __libc_start_main (main=
    0x55acf72f8720, argc=1, argv=0x7ffcbdd75548, init=<optimized out>,
fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffcbdd75538) at
../csu/libc-start.c:308
#8  0x000055acf72f96ba in _start ()
(gdb)

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