[Bug 109955] amdgpu [RX Vega 64] system freeze while gaming

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109955

--- Comment #121 from Mauro Gaspari <ilvipero at gmx.com> ---
(In reply to blppt from comment #120)
> I dont have anything to attach here, but same issue here, ubuntu 19.04,
> kernel 5.4-rc3, vega64 W/C, Mesa 19.3.0 -- it only seems to occur with DXVK
> and not D9VK for some reason.
> 
> Example: GW2 (DX9 game) will work perfectly under heavy load in WvW with
> massive zergs for hours with no crash, but FFXIV (DX11) will always lock the
> entire system up after a time.
> 
> That being said, when you force the top clock using
> 
> echo manual > /sys/class/drm/card0/device/power_dpm_force_performance_level
> 
> and
> 
> echo 7 > /sys/class/drm/card0/device/pp_dpm_sclk
> 
> FFXIV no longer locks the system at all. It does eat up a good deal more
> watts according to my UPS meter though, so resetting to auto is necessary
> IMHO.
> 
> So, it sounds like you guys are on the right track with the whole "power
> management" thing being the culprit. Just wanted to add my experience to
> this.
> 
> (and yes, echoing the guy above, the exact same system is stable in windows
> 10, so its not a hardware issue).

I agree with this. I am having much better experience myself even without
commands to force the power performance level by doing:
- change game to windowed or full-screen borderless (fixed window)
- disable vsync
- disable frame limiter

by doing the above 3, it seems that GPU is forced into max power state all the
time while playing. I have been using this method for a few days with DXVK
games and I had no freeze so far.

But again this is just a temporary workaround. So is the command to manually
force high power performance level. Hopefully a permanent fix comes with
AMDGPU/Kernel updates.

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