Oh actually it sounds like the problem might be that hardware acceleration isn't working:
[ 35.899866] tuxedo org.gnome.Shell.desktop[3332]: error: Kernel is too old (4.16+ required) or unusable for Iris. [ 35.899866] tuxedo org.gnome.Shell.desktop[3332]: Check your dmesg logs for loading failures. [ 36.085749] tuxedo org.gnome.Shell.desktop[3332]: error: Kernel is too old (4.16+ required) or unusable for Iris. [ 36.085749] tuxedo org.gnome.Shell.desktop[3332]: Check your dmesg logs for loading failures. [ 36.085749] tuxedo org.gnome.Shell.desktop[3332]: libEGL warning: egl: failed to create dri2 screen [ 36.088736] tuxedo org.gnome.Shell.desktop[3332]: error: Kernel is too old (4.16+ required) or unusable for Iris. [ 36.088736] tuxedo org.gnome.Shell.desktop[3332]: Check your dmesg logs for loading failures. [ 36.088736] tuxedo org.gnome.Shell.desktop[3332]: libEGL warning: egl: failed to create dri2 screen [ 36.091930] tuxedo org.gnome.Shell.desktop[3332]: error: Kernel is too old (4.16+ required) or unusable for Iris. [ 36.091930] tuxedo org.gnome.Shell.desktop[3332]: Check your dmesg logs for loading failures. [ 36.091930] tuxedo org.gnome.Shell.desktop[3332]: libEGL warning: egl: failed to create dri2 screen So either something went wrong with the dist upgrade or the Nvidia drivers (which are not present now) somehow broke the Intel drivers. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2067374 Title: gnome-shell very high cpu usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2067374/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs