Re: Linux 2.6.32-rc8 - T500 fails to suspend to RAM

[Lior Dotan]

Andy Isaacson wrote:
> Re-adding LKML.
>
> On Fri, Dec 04, 2009 at 11:39:25PM +0200, Lior Dotan wrote:
>   
> > On Fri, Dec 4, 2009 at 10:24 PM, Andy Isaacson <adi@xxxxxxxxxxxxx> wrote:
> >     
> > > For what it's worth, I'm testing suspend-to-ram on Ubuntu 9.10 x86_64
> > > with 2.6.32 final on a T500 and it's been pretty reliable -- I've
> > > suspended by closing the lid at least a dozen times and it hasn't locked
> > > up yet.
> > >       
> > I'm using either KDE menu to suspend or hibernate-ram from hibernate-script.
> > I will try to use the lid and see if it makes any difference.
> > The strange thing is that I tried using rc6 & rc7 and they don't work now
> > even though they used to, so I now I need to see what broke it.
> >     
>
> I mentioned the lid because of BZ #14484 which is only on Intel GMA plus
> using the lid switch to trigger suspend.  Since neither is relevant to
> you it's just a red herring. :)
>
>   
> > > 1. are you using DMAR (VT-d)?  I'm not, and I had problems on another
> > >   machine (also Core 2 Duo with GM45 graphics) when I tried suspending
> > >   with CONFIG_DMAR=y.
> > >       
> >  I disabled DMAR but still no luck.
> >     
>
> It's getting better but DMAR has still been a little problematic for me
> the last few months.  Updating to the very latest BIOS does help
> sometimes.
>
>   
> > > 2. are you running into http://bugzilla.kernel.org/show_bug.cgi?id=14484
> > >   or a similar problem?
> > > 3. (if you have GMA graphics) Are you up to date on the xorg-video-intel
> > >   driver?  I'm using KMS and xorg-video-intel 2.9.0.  2.8.x is missing
> > >   some relevant bugfixes.  (Of course if you have ATI graphics then
> > >   this isn't relevant.)
> > >
> > >       
> > I'm using the Radeon GPU so no KMS for me yet.
> >     
>
> Sounds like your Radeon or fglrx driver got updated and broke
> suspend/resume.
>   
I got some progess, when using the Intel GMA, the suspend works fine. 
The problem are only when using the radeon driver.
I am trying to use KMS for radeon but it fails to load the firmware and 
the system boots without KMS. I will disable KMS and revert the 
xf86-video-ati driver to the latest released version (I am now using the 
git version).

> -andy
>   
Thanks for your help,
Lior.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/