Re: [Bug 217892] New: [amdgpu]: system freezes when trying to turn back on monitor

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On Sat, Sep 09, 2023 at 10:19:36AM +0000, bugzilla-daemon@xxxxxxxxxx wrote:
> Hi,
> 
> My setup is a dual monitor 4K/144Hz with running sway on it. Both monitors are
> connected via DP to a Advanced Micro Devices, Inc. [AMD/ATI] Navi 31 [Radeon RX
> 7900 XT/7900 XTX]. Usually if i don't change monitor settings everything works
> as expected. The monitors do also wake up flawlessly after system idling. 
> 
> However, sometimes i turn off the second monitor (for example for playing
> games). For that i made a shortcut in sway which looks like this. 
> > bindsym $mod+Shift+F12 output DP-2 toggle
> 
> Now, turning the monitor of works as expected. However, turning it back on i
> encounter following erros/problems:
> Main Workspace (Desktop) freezes, second monitor tries to get turned on. (The
> monitor led goes up)
> After some time (couple of seconds, around 10-15sec) the main desktop works
> again, the second screen goes off again.
> At that point i usually have to reboot the system to get the second monitor
> back.
> 
> In dmesg is see following entries:
> [ 8623.325357] [drm] enabling link 1 failed: 15
> [ 8623.382238] [drm] REG_WAIT timeout 10us * 5000 tries -
> enc32_stream_encoder_dp_unblank line:348
> [ 8623.437493] [drm] REG_WAIT timeout 10us * 5000 tries -
> enc32_stream_encoder_dp_unblank line:357
> [ 8638.435963] [drm:amdgpu_dm_atomic_check] *ERROR* [CRTC:81:crtc-3] hw_done or
> flip_done timed out
> 
> This is also something which can be reproduces quite easily. However sometimes
> it works almost without problems. (in that case, the monitor comes back but the
> desktop on the main monitor looks distorted/corruped - maximizing a application
> fixes that)
> 
> This also seems to be a regression. With kernel 6.2 and 6.3 this worked as
> expected.
> 
> I'm using following kernel:
> Linux x2 6.5.2-gentoo #1 SMP PREEMPT_DYNAMIC Sat Sep  9 00:29:42 CEST 2023
> x86_64 AMD Ryzen 9 7950X3D 16-Core Processor AuthenticAMD GNU/Linux
> 
> As soon as there is a linux-6.6 kernel available in gentoo i'll try that one
> too.

You may try compiling your own kernel instead of having to wait for the kernel
package to be updated. See
Documentation/admin-guide/quickly-build-trimmed-linux.rst for full
instructions.

In any case, please also report to freedesktop tracker [1].

Thanks.

[1]: https://gitlab.freedesktop.org/drm/amd/-/issues

-- 
An old man doll... just what I always wanted! - Clara

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