Package: thunderbird Version: 1:78.10.0-1 Severity: important Thunderbird is consuming constantly above 80% CPU. strace shows that it heavily polls on /tmp/.X11-unix/X0
I am using a fresh install of Bullseye with Xfce4 the .thunderbird directory is copied over from a laptop running Buster -- System Information: Debian Release: bullseye/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 5.10.0-6-amd64 (SMP w/4 CPU threads) 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 thunderbird depends on: ii debianutils 4.11.2 ii fontconfig 2.13.1-4.2 ii libatk1.0-0 2.36.0-2 ii libbotan-2-17 2.17.3+dfsg-2 ii libbz2-1.0 1.0.8-4 ii libc6 2.31-11 ii libcairo-gobject2 1.16.0-5 ii libcairo2 1.16.0-5 ii libdbus-1-3 1.12.20-2 ii libdbus-glib-1-2 0.110-6 ii libevent-2.1-7 2.1.12-stable-1 ii libffi7 3.3-6 ii libfontconfig1 2.13.1-4.2 ii libfreetype6 2.10.4+dfsg-1 ii libgcc-s1 10.2.1-6 ii libgdk-pixbuf-2.0-0 2.42.2+dfsg-1 ii libglib2.0-0 2.66.8-1 ii libgtk-3-0 3.24.24-3 ii libicu67 67.1-6 ii libjson-c5 0.15-2 ii libnspr4 2:4.29-1 ii libnss3 2:3.61-1 ii libpango-1.0-0 1.46.2-3 ii libstdc++6 10.2.1-6 ii libvpx6 1.9.0-1 ii libx11-6 2:1.7.0-2 ii libx11-xcb1 2:1.7.0-2 ii libxcb-shm0 1.14-3 ii libxcb1 1.14-3 ii libxext6 2:1.3.3-1.1 ii libxrender1 1:0.9.10-1 ii psmisc 23.4-2 ii x11-utils 7.7+5 ii zlib1g 1:1.2.11.dfsg-2 Versions of packages thunderbird recommends: ii hunspell-de-at [hunspell-dictionary] 20161207-9 ii hunspell-de-ch [hunspell-dictionary] 20161207-9 ii hunspell-de-de [hunspell-dictionary] 20161207-9 ii hunspell-en-us [hunspell-dictionary] 1:2019.10.06-1 Versions of packages thunderbird suggests: ii apparmor 2.13.6-10 pn fonts-lyx <none> ii libgssapi-krb5-2 1.18.3-5 ii libgtk2.0-0 2.24.33-1 -- no debconf information