Bug#999451: kwin-x11: drawing windows is delayed making reading and typing tedious
Package: kwin-x11
Version: 4:5.23.2-1
Severity: important
Dear maintainers,
First off, thanks for maintaining KDE in Debian, I enjoy using it.
Since a recent upgrade (after the issues we had with only half (or
less) of the stack migrating to testing) I'm experiencing issues with
drawing of windows. The issue is that it seems that windows
(e.g. konsole) are only drawn after some delay or after switching back
and forth to another window. Especially the cursor position is often
at a different place that it shows, making typing mistakes very
difficult to correct. Also e.g. scrolling through messages in
Thunderbird is difficult, as the window is only properly refreshed
after I stop scrolling, until then the window is messed up. I tried to
make a screen shot of the situation, but it seems that also the
screenshot tool (Spectacle) ensures that the window is properly
refresh the moment it takes the screenshot. The issue is less of a
problem in Emacs, as that seems to force the refresh by itself much
more often (although I do see glitches with the cursor jumping).
I'm aware that the issue may not be with kwin, but it's the package I
thought of first, please reassign if you think the issue is more
likely to be elsewhere. Also please let me know if I can provide you
with more information to help solve the issue.
My system is an up-to-date testing environment. I delayed reporting
this issue in the hope that it was caused by other to-be-migrated
packages from unstable, but the issue is annoying me now for more than
a week (I estimate) and I have no clue which package from unstable I
should be looking out for.
Paul
-- System Information:
Debian Release: bookworm/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 5.14.0-2-amd64 (SMP w/8 CPU threads)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages kwin-x11 depends on:
ii kwin-common 4:5.23.2-1
ii libc6 2.32-4
ii libepoxy0 1.5.9-2
ii libgcc-s1 11.2.0-10
ii libkf5configcore5 5.86.0-1
ii libkf5coreaddons5 5.86.0-1
ii libkf5crash5 5.86.0-1
ii libkf5i18n5 5.86.0-1
ii libkf5quickaddons5 5.86.0-1
ii libkf5windowsystem5 5.86.0-1
ii libkwaylandserver5 [libkwaylandserver5-5.23] 5.23.2-1
ii libkwineffects13 4:5.23.2-1
ii libkwinglutils13 4:5.23.2-1
ii libkwinxrenderutils13 4:5.23.2-1
ii libqt5core5a 5.15.2+dfsg-12
ii libqt5dbus5 5.15.2+dfsg-12
ii libqt5gui5 5.15.2+dfsg-12
ii libqt5widgets5 5.15.2+dfsg-12
ii libqt5x11extras5 5.15.2-2
ii libstdc++6 11.2.0-10
ii libx11-6 2:1.7.2-2+b1
ii libxcb-composite0 1.14-3
ii libxcb-keysyms1 0.4.0-1+b2
ii libxcb-randr0 1.14-3
ii libxcb-render0 1.14-3
ii libxcb-shape0 1.14-3
ii libxcb-xfixes0 1.14-3
ii libxcb1 1.14-3
ii libxi6 2:1.8-1
kwin-x11 recommends no packages.
kwin-x11 suggests no packages.
-- no debconf information
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