Re: ACPI C4 support

Stefan Seyfried
2004-03-02T22:22:25Z

On Mon, Mar 01, 2004 at 08:39:17PM +0100, Bruno Ducrot wrote:

> > If there is old BIOS guide telling them to use length of 7, could we
> > make Linux accept that? Its likely a lot of developers have read
> > that...

Even non-intel developers. I have a ASUS L2400d, apparently intel-free
(maybe this is why all the ACPI suspend stuff works reasonably well ;-))
which has also the infamous "7" and so only supports C1.

> > Allowing length of 7 is one line change; if we do it, such notebooks
> > will be able to use C1..C3, but not C4. That does not seem too bad...

> The problem is that, from strict acpi point of view, it will be too easy
> to allow '7', and _CST support is much better. Don't ask me why, I'm not
> an expert. So perhaps it may be possible to add the (bahh, beurk)
> length of 7 if there exist a bad written bios developper guide released
> apparently by Intel, at least as a non pedantic acpi option?

Yes, please!
--
Stefan Seyfried