xserver freeze with amdgpu on RX 480

[Jakub Kubień]

After random time (up to 2h) working with system, it freezes (in browser, opening settings, working with files etc. ). Sometimes i can move with cursor. SSH and Apache2 web server is always working. But i cannot restart desktop manager due to xserver stuck in D state (obviously) only restart helps.

I had two display setup. And old kernels work work fine but destop is only copied on the second display.

HW is also ok. I am running dual boot and windows works fine and even graphic stress test on window passed (five hours with stable temp).

I get the system to work with kernel 4.9 and Linux Mint with cinnamon in software rendering mode, after installing amdgpu-pro it starts freezing again.

The bug happens in
16.04 and 16.10 (kde edition, gnome edition, classic with unity) w/wo amdgpu-pro

Please what else i can provide (logs,dumps etc.)?

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.