[Pm-utils] Problems with 98smart-kernel-video and intel graphics chipsets

[Jesse Barnes]

On Sunday, September 21, 2008 8:04 am Dan Nicholson wrote:
> On Sat, Sep 20, 2008 at 3:56 PM, Michael Biebl <mbiebl at gmail.com> wrote:
> > 2008/9/21 Jesse Barnes <jbarnes at virtuousgeek.org>:
> >> On Saturday, September 20, 2008 3:04 pm Michael Biebl wrote:
> >>> Or put in other words: What are the exact prerequisites
> >>> (hardware/software) for kernel modesetting to actually work. And what
> >>> kind of quirks are no longer necessary then (all?) ?
> >>
> >> Ah I didn't read the whole original message.  Kernel mode setting should
> >> work on 855 and above (and possibly 830 though I haven't tested). 
> >> Suspend/resume code is part of the patch, but is currently broken on all
> >> chipsets that I'm aware of (we'll get this fixed before merging
> >> upstream).
> >>
> >> Maybe you can point me at the original bug report so I can take a look?
> >
> > It's http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=499442
> >
> > The beginning of the discussion is
> > http://lists.freedesktop.org/archives/pm-utils/2008-September/001637.html
>
> Hang on, Michael. I don't think we're talking about kernel modesetting
> here. Correct me if I'm wrong, but none of the modesetting patches
> have landed in upstream linux, much less in 2.6.26. I don't think
> Debian has backported the modesetting patches, right?
>
> What we're concerned with right now is just if the 915 drm driver in
> recent vanilla kernels (2.6.26 and 2.6.27-rc*) is saving and restoring
> all the state necessary around a suspend/resume cycle to get the
> display up. Having all the modesetting done in the drm driver is a new
> feature around the corner. Right now, you need some coordination
> between the X video driver and the DRM driver to get the display
> restored.

Having the video ROM from this machine might help me fix things.  Can someone 
get it for me?  Just do the following as root:

# cd /sys/devices/pci0000\:00/0000\:00\:02.0/
# echo 1 > rom
# cat rom > /tmp/rom.bin
# echo 0 > rom

Thanks,
-- 
Jesse Barnes, Intel Open Source Technology Center