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DateTue, 8 Apr 2008 14:52:38 +0200
From"Fabio Comolli" <>
SubjectRe: 2.6.25-rc6 regression - hang on resume [Bug 10319]
On Tue, Apr 8, 2008 at 2:39 PM, Soeren Sonnenburg <kernel@nn7.de> wrote:
> On Tue, 2008-04-08 at 14:35 +0200, Romano Giannetti wrote:
> >
> > On Tue, 2008-04-08 at 10:58 +0200, Tino Keitel wrote:
> > > With 2.6.25-rc, the text console is fine after resume, due to the
> > > recent changes to the Intel i915 DRM driver. Maybe those people who
> > > used to use vbetool prior to 2.6.25 should check if this is still
> > > needed.
> >
> > Yep, the problem is just that: in 2.6.24 vbetool hacks (in my case,
> > using s2ram -p -m options) was needed to resume graphics. Now they are
> > not needed anymore, and using them _break_ resume.
> >
> > So, people with a working suspend-to-ram setup (even using the whitelist
> > in s2ram, I mean, simply calling s2ram) will discover that 2.6.25 break
> > their machine. Removing the s2ram package and suspending with
> > kernel-only machinery will work, but... well, it's not user-friendly.
>
> The above holds only if you have an intel graphics adapter. For me
> (radeon) it really breaks (as in echo mem >/sys/power/state leaves me a
> black screen on resume and manually typing vbetool post or vbetool
> vgamode simply hangs the machine).
>

For me (radeon X700) using binary fglrx xorg driver without the binary
kernel module (which does not compile under .25rc for me)
resume-from-ram works using s2ram.

Lightly tested with -rc8.

My laptop is in whitelist as VBE_POST|VBE_SAVE|NOFB .
> Soeren

Fabio


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