[Bug 110674] Crashes / Resets From AMDGPU / Radeon VII

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110674

--- Comment #161 from Gargoyle <g at rgoyle.com> ---
Hi there. I've been trying to solve some lockups and pauses with my system and
have just read this entire thread. 

The good news is that I am another Radeon VII owner having the same problems
and I am willing to do whatever I can to help.

My current situation is:-

- I'm running dual 2560x1440 at 60Hz via display port.

- I am running the beta of ubuntu 19:10 (Linux ryzen1910 5.3.0-18-generic
#19-Ubuntu SMP Tue Oct 8 20:14:06 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux).

- I don't push the R:VII at all under Linux. I boot into Windows 10 to play
games.

- I have disabled IOMMU in BIOS/EFI. With IOMMU enabled things are MUCH worse.

- My system is mostly stable. If the displays blank, sometimes after waking
them I get the 15-30 second freeze. Then the "amdgpu [powerplay] Failed..."
messages and then everything continues ok. I can semi-reliably recreate this by
using the "xset dpms force off" command someone posted earlier. I've not
managed to find any kind of pattern yet, but 8 out of 10 times running that
command and then waking the system with a keypress/mouse click will cause the
freeze.

- I use X11 and not wayland. Not sure that is significant, but with Ubuntu
19:10 it seems wayland is started temporarily and then stopped during boot /
starting gdm. If I enable IOMMU my GDM login screen will be completely corrupt.
However, if I press enter (to select my user) and enter my password, my X11
gnome session starts. Although there are LOTS of pauses and warnings and errors
all over the place in "journalctl -f".

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20191012/5d5d710c/attachment.html>