This issue has a workaround: Download 7.9 radeon driver Ubuntu package (xserver-xorg-video-radeon- hwe-16.04_7.9.0-0ubuntu1~16.04.1_amd64.deb) from:
https://launchpad.net/ubuntu/xenial/amd64/xserver-xorg-video-radeon- hwe-16.04/1:7.9.0-0ubuntu1~16.04.1 Execute the following on the downloaded .deb file: > sudo dpkg -i xserver-xorg-video-radeon- hwe-16.04_7.9.0-0ubuntu1_16.04.1_amd64.deb > sudo apt-get -f install > sudo apt-mark hold xserver-xorg-video-radeon-hwe-16.04 This downgrades the radeon driver package to version 7.9, fixes dependencies, and holds the driver pkg from further updates. Upon rebooted, issue is resolved. A bug has been reported to Freedesktop at: https://bugs.freedesktop.org/show_bug.cgi?id=105217 ** Bug watch added: freedesktop.org Bugzilla #105217 https://bugs.freedesktop.org/show_bug.cgi?id=105217 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1750393 Title: Blank screen with only mouse pointer after mesa driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati-hwe-16.04/+bug/1750393/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs