Re: iBook G4 swsusp status
On Mon, 2004-05-03 at 10:28, Benjamin Herrenschmidt wrote:
> On Mon, 2004-05-03 at 18:02, Arne Caspari wrote:
> > I patched a vanilla 2.6.5 kernel with the pmdisk patch Guido sent to list.
> >
> >.../...
> >
> > suspend from the console works then. resume to the console works but as soon as I switch back
> > to the graphics console, the system locks up, showing a garbled screen.
> >
> > Any ideas what I could try to recover the graphic console without crashing?
>
> I suppose X doesn't expect the card to be back to completely initial state
> during a console switch.
>
> Michel, what does DRI do in this regard ? Does it re-init everything including
> microcode, MC_*_LOCATION, AGP state, etc... on every console switch or not ?
Mostly, at least with a recent enough DRM, which should be no problem
with a 2.6 kernel. Does the UniNorth agpgart code have suspend hooks?
> Do we still have something like DRIReInit option ?
xserver-xfree86-dri-trunk does.
> Part of the trouble is that we do not have the /dev/apm_bios emulation notifying
> X that the machine is suspending/resuming with swsusp.
Apparently, people use chvt in suspend scripts to work around that.
--
Earthling Michel Dänzer | Debian (powerpc), X and DRI developer
Libre software enthusiast | http://svcs.affero.net/rm.php?r=daenzer
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