Messages in this thread | | | Date | Sat, 05 Dec 2009 12:55:15 +0200 | From | Lior Dotan <> | Subject | Re: Linux 2.6.32-rc8 - T500 fails to suspend to RAM |
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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@hexapodia.org> 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.
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