On 2018-05-24 12:06 AM, LuÃs Mendes wrote: > I've tried Linux 4.17-rc6 with Ubuntu 18.04 on Tyan S7002 and I am not even > able see lightdm/gdm3 as system hangs when starting X. > Having SR-IOV enabled or disabled makes no difference. > Tested with AMD RX 460. > When X is supposed to start the system hangs and only a rectangular region > on the top left corner screen remains with console text messages from the > boot process while the remaining of the screen is just black. I am unable > to do anything with the keyboard, switching to console does not work, > ctrl-alt-del also doesn't work. I've to do a cold reset. Can you isolate which change introduced this new issue with git bisect? -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer