Package: kwin-x11 Version: 4:5.23.0-2 Severity: important When starting compositing in kwin (either by starting kwin with compositing enabled, or by pressing Ctrl-Alt-F12 while kwin is running), the whole screen goes black apart from the mouse cursor.
When this happens, kwin prints `kwin_core: Failed to initialize compositing, compositing disable`. Further attempts to enable compositing via the keyboard shortcut produce two lines: `kwin_core: Failed to initialize compositing, compositing disable` and `kwin_core: XCB error: 10 (BadAccess), sequence: 2497, resource id: 1730, major code: 142 (Composite), minor code: 2 (RedirectSubwindows)`. Attempting to disable or enable compositing has no visible effect. The screen simply remains black until kwin is killed. -- System Information: Debian Release: bookworm/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.14.0-3-amd64 (SMP w/4 CPU threads) Kernel taint flags: TAINT_CRAP, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en_US 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 4:5.23.0-2 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] 5.23.0-1 ii libkwineffects13 4:5.23.0-2 ii libkwinglutils13 4:5.23.0-2 ii libkwinxrenderutils13 4:5.23.0-2 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
