I found the real reason for the crashes. The problematic package is the `gstreamer1.0-vaapi` (see https://packages.ubuntu.com/focal/gstreamer1.0-vaapi). It is a dependency of `ubuntu-restricted-addons` (see https://packages.ubuntu.com/focal/ubuntu-restricted-addons).
So ubuntu-mate-welcome and for example Cheese may be fixed by removing this package with ``` sudo apt-get purge gstreamer1.0-vaapi sudo apt-get autoremove --purge # to remove libgstreamer-plugins-bad1.0-0 (is not a problem) ``` So please carefully analyze the crash dumps for errors in `gstreamer1.0-vaapi` and fix this package. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1796437 Title: X11 crashed when attempting to open Budgie and MATE Welcome To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gstreamer-vaapi/+bug/1796437/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
