da2bc1b9db3351addd293e5b82757efe1f77ed1d breaks hibernation was Re: 4.1-rc7, thinkpad X60: platform mode hibernation does very wrongthing
From: Pavel Machek
Date: Wed Jun 17 2015 - 11:18:09 EST
> And this all reminded me of https://lkml.org/lkml/2015/3/18/133 . So I
> think that's another system not covered by commit ab3be73fa7b4
> ("drm/i915: gen4: work around hang during hibernation").
Yes, another system broken by
Author: Imre Deak <imre.deak@xxxxxxxxx>
Date: Thu Oct 23 19:23:26 2014 +0300
drm/i915: add poweroff_late handler
The suspend_late handler saves some registers and powers off the
so it doesn't have a big overhead. Calling it at S4
makes the power off handling identical to the S3 suspend and
handling, so do this for consistency.
And no, adding another system to the "blacklist" is a not good idea,
because we know there are other broken systems out there. Can we
revert da2bc1b9db3351addd293e5b82757efe1f77ed1d, please? Consistency
is nice, but not having regressions is even nicer.
PS: Now I have real Linus and fake Linus on the Cc list. Or maybe two
real Linuses, its hard to tell.
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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