Have you tried it with this patch backed out?
http://kernel.ubuntu.com/git/ubuntu/ubuntu-bionic.git/commit/drivers/gpu?id=3fd668d6f93978f0b67264ab6a99d5f801cbd9b0
Have you tried it with this patch backed out?
http:// kernel. ubuntu. com/git/ ubuntu/ ubuntu- bionic. git/commit/ drivers/ gpu?id= 3fd668d6f93978f 0b67264ab6a99d5 f801cbd9b0