From: Roland Dreier <roland@purestorage.com>
To: Tomasz Chmielewski <tch@wpkg.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 3.5-rc7 - can no longer wake up from suspend to RAM
Date: Sat, 21 Jul 2012 15:11:03 -0700 [thread overview]
Message-ID: <CAL1RGDU8TVBkZ4yP=kjwqvGUsrnQcBGpLa_x-7c=Gu54piVwyw@mail.gmail.com> (raw)
In-Reply-To: <50079125.3020007@wpkg.org>
On Wed, Jul 18, 2012 at 9:46 PM, Tomasz Chmielewski <tch@wpkg.org> wrote:
> After upgrading to 3.5-rc7, my laptop no longer wakes up reliable from suspend to RAM. 3.4.x worked fine.
FWIW, I've been having similar problems with 3.5-rc7. With 3.5-rc6 my
laptop resumed fine, but since updating to -rc7, it often seems to just
sit there after opening the lid -- the moon/sleep LED stays on, and the
power LED smoothly cycles on and off, as if it's fast asleep. Even pressing
the power button doesn't have any effect (until I hold down the power
button long enough to turn off).
I guess I'll start a bisection, but it's slow going because it takes multiple
tries to know for sure if a kernel is bad.
The only commit between rc6 and rc7 that looks like it might be related
is dc332fdf9f373a87b1e2f423b5b004b2a3c37e1a ("ACPI / PM: Leave
Bus Master Arbitration enabled for suspend/resume"), which apparently
fixes some other laptops. But perhaps I'll try reverting that and see how
it goes.
- R.
next prev parent reply other threads:[~2012-07-21 22:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-19 4:46 3.5-rc7 - can no longer wake up from suspend to RAM Tomasz Chmielewski
2012-07-21 22:11 ` Roland Dreier [this message]
2012-07-22 2:07 ` Hugh Dickins
2012-07-22 5:48 ` Roland Dreier
2012-07-22 5:51 ` Tomasz Chmielewski
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