[Nouveau] [Bug 111044] Resume up from suspend sometimes freezes system (Optimus/Nouveau)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111044

--- Comment #2 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to JM9 from comment #0)
> I'm on an Optimus laptop. Every time, I resume from suspend, I get this
> message and the resume succeeds. 
> 
> tmp tpm0: tpm_try_transmit: send(): error -5

This is related to the TPM driver - Trusted Platform Module. No clue what it's
for. Intel ME interactions perhaps?

> 
> However, sometimes, I get this following messages and the system freezes:
> 
> nouveau 0000:01: 00.0: disp: outp 03:0006:0f81: link rate unsupported by sink
> nouveau 0000:01: 00.0: disp: outp 03:0006:0f81: training failed
> 
> Not sure if this is relevant, but I also have a external multi-monitor setup.

Is the system actually frozen, or just the display is down? I suspect
disconnecting and reconnecting would "fix" the issue in such a situation.
Unfortunately I can't help much more than that, but perhaps someone else can
suggest something.

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