Package: picom Version: 10.2-1 Severity: serious picom adds an autostart file which makes it automatically start on session login.
Today I noticed that journald/rsyslog ran while and my logs were flodded with the following messages (I was logged into a GNOME session at that time): Jul 13 19:18:11 pluto picom.desktop[2236]: [ 13.07.2023 19:18:11.510 redirect_start FATAL ERROR ] Another composite manager is already running (and does not handle _NET_WM_CM_Sn correctly) Jul 13 19:18:11 pluto picom.desktop[2236]: [ 13.07.2023 19:18:11.510 redirect_start FATAL ERROR ] Another composite manager is already running (and does not handle _NET_WM_CM_Sn correctly) Jul 13 19:18:11 pluto picom.desktop[2236]: [ 13.07.2023 19:18:11.510 redirect_start FATAL ERROR ] Another composite manager is already running (and does not handle _NET_WM_CM_Sn correctly) Within minutes, my disk was filled with hundreds of megabytes of log data (/var/log/syslog was over 1GB), before I killed the rogue picom process. -- System Information: Debian Release: trixie/sid APT prefers unstable APT policy: (500, 'unstable'), (200, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 6.3.0-2-amd64 (SMP w/4 CPU threads; PREEMPT) Kernel taint flags: TAINT_FIRMWARE_WORKAROUND Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages picom depends on: ii libc6 2.37-5 ii libconfig9 1.5-0.4 ii libdbus-1-3 1.14.8-2 ii libegl1 1.6.0-1 pn libev4 <none> ii libgl1 1.6.0-1 ii libpcre3 2:8.39-15 ii libpixman-1-0 0.42.2-1 ii libx11-6 2:1.8.6-1 ii libx11-xcb1 2:1.8.6-1 ii libxcb-composite0 1.15-1 ii libxcb-damage0 1.15-1 ii libxcb-glx0 1.15-1 ii libxcb-image0 0.4.0-2 ii libxcb-present0 1.15-1 ii libxcb-randr0 1.15-1 ii libxcb-render-util0 0.3.9-1+b1 ii libxcb-render0 1.15-1 ii libxcb-shape0 1.15-1 ii libxcb-sync1 1.15-1 ii libxcb-xfixes0 1.15-1 ii libxcb-xinerama0 1.15-1 ii libxcb1 1.15-1 ii python3 3.11.4-5 picom recommends no packages. picom suggests no packages.