Package: kwin-x11 Version: 4:5.8.6-1 Severity: important
Hello, The last 8 months or so kwin_x11 has been hanging randomly probably at least once a day. The screen just freezes mid-operation and doesn't update anymore; but I can still switch to a non-x11 console. The hangups occur when switching desktops or on some websites in Firefox that are graphics intense or have video. I think the bug is related to the graphics driver code, because there's often a line in the logs around the time freezes happen. Here's one from today: [Mon Apr 10 11:09:48 2017] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=20652 end=20653) time 355 us, min 1192, max 1199, scanline start 1176, end 1202 The computer is a fairly old system with the Intel Q35 Chipset and uses the default Intel drivers: [drm] Initialized i915 1.6.0 20160919 for 0000:00:02.0 on minor 0 Killing kwin from a non-X11 console (with `kwin_x11 --replace`) brings back the system – minus some programs that don't like that approach, so I assume the bug is in kwin or perhaps the Intel driver for i915. I have seen other references to "Atomic update failure on pipe ..." in bug reports in diverse places on the net, but no clear solution. Thanks for your time, Wouter -- System Information: Debian Release: 9.0 APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 4.9.0-2-amd64 (SMP w/2 CPU cores) Locale: LANG=C.UTF-8, LC_CTYPE=nl_BE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages kwin-x11 depends on: ii kwin-common 4:5.8.6-1 ii libc6 2.24-9 ii libepoxy0 1.3.1-2 ii libgcc1 1:6.3.0-11 ii libkf5configcore5 5.28.0-2 ii libkf5coreaddons5 5.28.0-2 ii libkf5crash5 5.28.0-1 ii libkf5i18n5 5.28.0-2 ii libkf5windowsystem5 5.28.0-2 ii libkwinglutils9 4:5.8.6-1 ii libkwinxrenderutils9 4:5.8.6-1 ii libqt5core5a 5.7.1+dfsg-3+b1 ii libqt5gui5 5.7.1+dfsg-3+b1 ii libqt5widgets5 5.7.1+dfsg-3+b1 ii libqt5x11extras5 5.7.1~20161021-2 ii libstdc++6 6.3.0-11 ii libx11-6 2:1.6.4-3 ii libxcb-cursor0 0.1.1-3 ii libxcb-randr0 1.12-1 ii libxcb-xfixes0 1.12-1 ii libxcb1 1.12-1 ii libxi6 2:1.7.9-1 kwin-x11 recommends no packages. kwin-x11 suggests no packages. -- no debconf information
