Package: chromium Followup-For: Bug #943563 Looks to be fixed in chromium 79.
I can't reproduce it now on the same hardware, but with Mesa 19.3.2 (I was testing with Mesa 19.2.1 previously). In fact the framebuffer invalidation tests all pass now, and no crashes either. There are some other issues with WebGL conformance test, including some serious regressions, but that should be filled as a separate bug. -- System Information: Debian Release: bullseye/sid APT prefers testing-debug APT policy: (500, 'testing-debug'), (500, 'unstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.2.0-3-amd64 (SMP w/32 CPU cores) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages chromium depends on: ii chromium-common 79.0.3945.130-2 ii libasound2 1.2.1.2-2 ii libatk-bridge2.0-0 2.34.1-2 ii libatk1.0-0 2.34.1-1 ii libatomic1 9.2.1-24 ii libatspi2.0-0 2.34.0-3 ii libavcodec58 7:4.2.1-2+b1 ii libavformat58 7:4.2.1-2+b1 ii libavutil56 7:4.2.1-2+b1 ii libc6 2.29-9 ii libcairo-gobject2 1.16.0-4 ii libcairo2 1.16.0-4 ii libcups2 2.3.1-1 ii libdbus-1-3 1.12.16-2 ii libdrm2 2.4.100-4 ii libevent-2.1-7 2.1.11-stable-1 ii libexpat1 2.2.9-1 ii libflac8 1.3.3-1 ii libfontconfig1 2.13.1-2+b1 ii libfreetype6 2.10.1-2 ii libgcc1 1:9.2.1-24 ii libgdk-pixbuf2.0-0 2.40.0+dfsg-2 ii libglib2.0-0 2.62.4-1+b1 ii libgtk-3-0 3.24.13-1 ii libharfbuzz0b 2.6.4-1 ii libicu63 63.2-2 ii libjpeg62-turbo 1:1.5.2-2+b1 ii libjsoncpp1 1.7.4-3+b1 ii liblcms2-2 2.9-4 ii libminizip1 1.1-8+b1 ii libnspr4 2:4.24-1 ii libnss3 2:3.49-1 ii libopenjp2-7 2.3.1-1 ii libopus0 1.3-1+b1 ii libpango-1.0-0 1.42.4-8 ii libpangocairo-1.0-0 1.42.4-8 ii libpci3 1:3.6.2-6 ii libpng16-16 1.6.37-1 ii libpulse0 13.0-3 ii libre2-5 20200101+dfsg-1 ii libsnappy1v5 1.1.7-2 ii libstdc++6 9.2.1-24 ii libva2 2.6.1-1 ii libvpx6 1.8.2-1 ii libwebp6 0.6.1-2+b1 ii libwebpdemux2 0.6.1-2+b1 ii libwebpmux3 0.6.1-2+b1 ii libx11-6 2:1.6.8-1 ii libx11-xcb1 2:1.6.8-1 ii libxcb1 1.13.1-3 ii libxcomposite1 1:0.4.4-2 ii libxcursor1 1:1.2.0-2 ii libxdamage1 1:1.1.5-1 ii libxext6 2:1.3.3-1+b2 ii libxfixes3 1:5.0.3-1 ii libxi6 2:1.7.9-1 ii libxml2 2.9.4+dfsg1-8 ii libxrandr2 2:1.5.1-1 ii libxrender1 1:0.9.10-1 ii libxslt1.1 1.1.32-2.2 ii libxss1 1:1.2.3-1 ii libxtst6 2:1.2.3-1 ii zlib1g 1:1.2.11.dfsg-1+b1 Versions of packages chromium recommends: ii chromium-sandbox 79.0.3945.130-2 Versions of packages chromium suggests: pn chromium-driver <none> ii chromium-l10n 79.0.3945.130-2 pn chromium-shell <none> Versions of packages chromium-common depends on: ii x11-utils 7.7+4 ii xdg-utils 1.1.3-1 Versions of packages chromium-common recommends: ii chromium-sandbox 79.0.3945.130-2 ii fonts-liberation 1:1.07.4-10 ii libgl1-mesa-dri 19.3.2-1 ii libu2f-udev 1.1.10-1 ii mate-notification-daemon [notification-daemon] 1.22.1-1 ii notification-daemon 3.20.0-4 ii system-config-printer 1.5.12-1 ii upower 0.99.11-1 Versions of packages chromium-sandbox depends on: ii libatomic1 9.2.1-24 ii libc6 2.29-9 ii libgcc1 1:9.2.1-24 ii libstdc++6 9.2.1-24 -- no debconf information