Re: [PATCH] ACPI suspend: Blacklist HP xw4600 Workstation for old code ordering

From: Rafael J. Wysocki
Date: Wed Oct 15 2008 - 17:16:22 EST


On Wednesday, 15 of October 2008, Matthew Garrett wrote:
> On Wed, Oct 15, 2008 at 04:05:35PM +0200, Rafael J. Wysocki wrote:
> > On Wednesday, 15 of October 2008, Matthew Garrett wrote:
> > > I think trying to work out what would be more useful than just adding it to
> > > a blacklist.
> >
> > Well, machines that require the "old" ordering are simply broken, because
> > you just can't assume that specific devices are not in D3 before you
> > execute _PTS.
> >
> > IOW, we aren't doing anything wrong and the BIOS is buggy.
>
> So how does Windows cope with this?

I don't know. :-(

One possible explanation is that the device causing the trouble is not put
into D3 at all during suspend, but I'm speculating here.

Thanks,
Rafael
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/