[ltp] Power Saving Modes (was Problem with Acpi)

[Jay Strauss]

Matthias Posseldt wrote:
> On Friday 08 October 2004 14:47, Jay Strauss wrote:
> 
>>I'm running a A30 Thinkpad, I have to reboot to see if I have APM (I
>>suspect I do).
> 
> 
> With some kernels my A30p didn't even try to activate ACPI with a 
> message similar to "Thinkpad found, enabling APM".
> 
> 
>>Is one better than the other?  That is, if I have a choice, is APM
>>(or ACPI) a better solution?
> 
> 
> The A30 has a very stable APM implementation so I'd go for this (I do, 
> actually). The only thing which is a bit tricky is the hibernation (if 
> you want to do it with APM hibernation and not a Linux solution like 
> swsup2), because you need to run a DOS exe to create a hibernation file 
> on a FAT16/FAT32 partition. I only tried hibernation once and the 
> graphics output (X) became corrupted when waking up. The system was 
> unusable until reboot (hard reboot).
> 
> 
>>How do you tell if you can use BIOS APM?
> 
> 
> You can use it if the BIOS supports APM (the A30 does) and you don't use 
> ACPI. You can boot Linux with the kernel parameter "noacpi" to disable 
> ACPI.
> 
> Regards,
> Matthias
> 

Can you send me your configuration, or recommend reading about how to 
set it up?

Thanks
Jay