[ltp] what T42 ?

[obi]

On Thu, Nov 18, 2004 at 01:07:33PM -0800, Osho GG wrote:
> I have been using ACPI on T42p with Suse 9.1 Pro with custom compiled kernel 
> (2.6.9). ACPI suspend and resume have been extremely reliable with very 
> little power drainage for S3. I can keep T42p suspend to RAM (S3) for 
> overnight with about 5% battery loss.

Hi,

I have a T41 and I loose 10% of battery per hour when using ACPI. I'm
using 2.6.9 too. Can I have your .config and your lspci? I'm trying to
find out which device isn't sleepping properly.

thanks
graziano


> 
> There were many things I learned while making this work - YMMV.
> 
> 1. Make sure you use kernel 2.6.8.1 or later - this makes a big difference for 
> me.
> 2. Make sure that all usb modules *hci* are unloaded before suspend and 
> reloaded at resume.
> 3. If you run into issues with X not coming up or screwed up at resume, turn 
> 3D rendering off. Make it work without 3D first and then look for 
> work-arounds to make it with 3D. In my case, I just disabled 3D.
> 4. Pass acpi_sleep=s3_bios to kernel parameters at the boot time - this helps 
> IBM machines.
> 5. If the wireless card's driver doesn't support power management, it may 
> needed to be unloaded/reloaded at suspend/resume respectively.
> 
> Suspend to disk also works reliably however I almost never use it because I 
> never have the need for it.
> 
> -- 
> Osho
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