Laptop power management support

[Sami Haahtinen]

Matthew Garrett wrote:
> On Fri, 2004-11-12 at 15:14 +0200, Sami Haahtinen wrote:
>>>Ok. Were you trying suspend to disk or suspend to RAM?
>>RAM, I didn't have time to try suspend to disk at the time. (will do 
>>that later too)
> 
> If you have DRI enabled, it might be worth a try disabling it (comment
> out Load DRI in /etc/X11/XF86Config-4 or xorg.conf as appropriate). ATI
> chipset stuff seems to have difficulty in resuming by default at the
> moment. Suspend to disk is rather more likely to work by default, so if
> you could give that a go, it would be great.

Ok, now i have proper results.

Suspend to RAM works rather well now, i think it might be the D-Port 
that caused some of the problems.

Here is the short summary:
- Suspend to RAM works.
- Resuming from RAM works after disabling DRI from Xorg
- Suspend to Disk fails to shutdown the computer and resumes immediately.

All i can find in dmesg is 2 notes about USB devices failing to power 
off, while I don't have any connected. Oh well.. back to the drawing 
board. I think i'll try disconnecting the internal cdrom and disabling 
bluetooth and wlan..

I'll report back to you in a moment.

Sami