[Bug 80203] [HSW] trying to runtime suspend with power well enabled on 3.15

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80203

--- Comment #9 from Patrik Lundquist <patrik.lundquist at gmail.com> ---
(In reply to comment #8)
> (In reply to comment #7)
> > 
> > 3.17.0-rc4 is also affected.
> 
> The WARN in this log is separate from the original one.

> It seems that you
> have VGA (at least according to your BIOS) but the driver doesn't detect it.

I do have VGA. Never used it.


> Could you try if the diff below fixes it?

Will do.


> Note that based on the above it's not sure if the original issue is present
> in 3.17.0-rc4. Did it happen at the first suspend, or only after multiple
> attempts?

At first suspend but not at subsequent suspends so far, with 3.17.


I think I have two suspend bugs:

1) intel_display.c: assert_can_disable_lcpll as seen with 3.15 and 3.17

2) intel_pm.c: intel_display_power_put as seen with 3.16 and might be the lock

Maybe #2 also turns up eventually with 3.17. We'll see.

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