Bug#882512: kwin-x11: stops drawing window content after some time
Package: kwin-x11
Version: 4:5.8.6-1
Severity: important
Forwarded: https://bugs.kde.org/show_bug.cgi?id=343661
Hi,
after some time my kde session stops redrawing some windows. I see this
mostly in konsole and firefox (which are the majority of my long-running
open windows). Clicking and typing is still working, but updates causes
by this are only seen after forcing a redraw by e.g.
minimizing+unminimizing, switching to another tab and back in konsole,
...
Sometimes a firefox window also becomes completely black (but title and
border are still OK), which can be fixed by minimizing and unminimizing.
This time it took 4 days since the last reboot and X session start for
the problem to show up for the first time.
The workaround from the corresponding upstream bug is
KWIN_EXPLICIT_SYNC=0 kwin_x11 --replace &
This is working, but not a permanent fix, it may need to be repeated
after some days since the problem reappears from time to time (within
the same X session).
I haven't played with any compositing options since I upgraded to
stretch, not sure if I changed something in wheezy or jessie.
Andreas
-- System Information:
Debian Release: 9.2
APT prefers stable-updates
APT policy: (800, 'stable-updates'), (800, 'stable'), (700, 'testing'), (600, 'unstable'), (500, 'unstable-debug'), (500, 'testing-debug'), (500, 'stable-debug'), (500, 'oldstable-updates'), (500, 'oldstable-proposed-updates'), (500, 'oldoldstable-updates'), (500, 'oldoldstable-proposed-updates'), (500, 'oldoldstable'), (500, 'oldstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.9.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=C, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE= (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
Reply to: