[Bug 111805] Constant "Resetting rcs0 for hang on rcs0" and machine lockup

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111805

--- Comment #4 from Kenneth C <kenny at panix.com> ---
(In reply to Lakshmi from comment #2)

> Can you please attach this file /sys/class/drm/card0/error here?

When it hangs (and it did when I tried to reply to this just now, BTW) I'm left
without a usable display, so I can't switch to a VT to save off the error file.

It seems to be most reproducible if I have an external monitor connected.

> What is the impact of this issue to you?
> How do you recover from this situation?

It locks my system hard and I require a hard power-cycle reboot to recover.

I don't have another machine to attempt to SSH into this one, either.

Is there a mechanism to save the error file to non-volatile storage?

> Can you please verify the issue with drmtip and provide the feedback?
> (https://cgit.freedesktop.org/drm-tip).  

I'll try that next.

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