Re: [PATCH] PCI PM: Restore standard config registers of all devices early (was: Re: EeePC resume failure - timers)

Jesse Barnes
2009-01-20T20:15:11Z

On Tuesday, January 20, 2009 12:09 pm Jesse Barnes wrote:
> On Tuesday, January 20, 2009 11:45 am Linus Torvalds wrote:
> > On Tue, 20 Jan 2009, Jesse Barnes wrote:
> > > Hm it's probably not display programming related then... Sounds like
> > > the i830_update_dri_buffers() call is failing for some reason. The
> > > kernel driver does do some I/O mapping stuff at enter/leavevt time (and
> > > therefore suspend/resume time), can you reproduce the issue just by VT
> > > switching? If so you might be able to see something useful in the
> > > kernel log...
> >
> > I was going to say that I've been VT switching and it has worked, but I
> > decided to double-check. And yes, I can reproduce it that way. And no, no
> > kernel messages that are visible that way either.
>
> So the machine is alive enough for you to see the logs? Can you get a
> backtrace (both kernel & userspace)?

Oops, just realized by "no messages visible" you probably meant that it really
was hung rather than you saw no useful messages. That'll make things more
difficult. Which 2D driver are you running?

--
Jesse Barnes, Intel Open Source Technology Center