I'm not an expert, but you might want to see if you can gain some insight from the output of 'journalctl -b0'.
E.g. is your system using the framebuffer driver "fbcon: xxx" or "[drm] ..." during boot up? In the 'journalctl -b0' output I posted above,you can see that it's using the frame buffer. That is what lead me to track down system configuration issues. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1768610 Title: No acceleration after upgrading to 18.04: gnome-session-check- accelerated incorrectly picks llvmpipe To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1768610/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs