[ltp] Does APM still work on 2.6?

[Crispin Cowan]

Aaron Mulder wrote:

>	I'm running a 2.4 kernel on my T40, with APM, and it works fine --
>suspend, resume, the lid, the function keys, I've even heard hibernate
>works fine though I don't use it myself.  About the only complaint I have 
>is that I have to rmmod ehci-hcd before using USB devices after a resume.
>  
>
That's interesting. I've observed that my hotplug USB works great (SuSE 
9.1, Linux 2.6) brings up a Konq view of the USB device. Unless the 
machine has been asleep, in which case plugging in any USB device 
produces a hard lockup.

I'll try removing ehci_hcd next time I do a sleep/resume and see if it 
locks.

>	On the list lately there's been a lot of fuss about ACPI, which I
>can best distill as: "you might be able to get it to work if you patch
>your kernel and stuff but even then it sucks battery while suspended".
>  
>
Stock SuSE 9.1 Pro (Linux 2.6.4-52-default) worked out of the box. 
Battery life WRT computation is excellent; the powerscaling is 
definitely running. Battery life while sleeping definitely sucks, it 
burns between 6% and 10% per *hour* while suspended to RAM. Suspend to 
disk does not work.

Crispin

-- 
Crispin Cowan, Ph.D.  http://immunix.com/~crispin/
CTO, Immunix          http://immunix.com