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    SubjectRe: 2.6.25-rc2 System no longer powers off after suspend-to-disk. Screen becomes green.
    Date
    On Thursday, 21 of February 2008, Jesse Barnes wrote:
    > On Wednesday, February 20, 2008 3:03 pm Jesse Barnes wrote:
    > > On Wednesday, February 20, 2008 2:32 pm Jesse Barnes wrote:
    > > > On Wednesday, February 20, 2008 11:10 am Jeff Chua wrote:
    > > > > On Feb 21, 2008 2:53 AM, Jesse Barnes <jesse.barnes@intel.com> wrote:
    > > > > > > So, next I'll try "shutdown" to see if it work. I was using
    > > > > > > "platform".
    > > > > >
    > > > > > Ok, that would be good to try.
    > > > >
    > > > > "shutdown" does power down properly. But still green on resume.
    > > > >
    > > > > > Looks like the AR registers are hosed, which is what I thought I
    > > > > > fixed... Can you attach your i915_drv.c file just so I can sanity
    > > > > > check it?
    > > > >
    > > > > Attached.
    > > >
    > > > Jeff, for the hang on suspend problem, I know suspect something else in
    > > > 2.6.25-rc2 caused that.
    > >
    > > Looks like 2.6.25-rc1 also had broken suspend (my test was broken). IIRC,
    > > Dave and I had it working at LCA using the out of tree DRM modules on
    > > 2.6.23.14 or 15... Maybe you could give that a try?
    >
    > And just to confirm that, I just tested the current DRM modules against a
    > 2.6.23.15 kernel.

    In 2.6.23.x there's no second ->suspend() during hibernation, so no wonder.

    I'll figure out how to work around this issue in the current mainline, but a
    real fix will only be possible when we have separate callbacks for
    hibernation.

    Thanks,
    Rafael


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