I think there is another bug report very similar to this one, but can't find it for now. I've never been able to use the stock ubuntu 16.04 kernel with my system (00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Trinity [Radeon HD 7480D]) and need to compile a patched kernel each time... Here are the 2 patches that resolve the problem for me.
** Patch added: "(this is 1 of 2)" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1573648/+attachment/4744507/+files/01_drm_radeon_dp.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1573648 Title: 16.04 -> AMD APU via VGA gives blank screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1573648/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs