Status of ACPI on IBM T40p

[Alexander Gran <alex-4mRm4CWMOdkHuPwBo6/EyUB+6BGkLq7r@public.gmane.org>]

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Hi,

I just gave ACPI an other try this night. This are my results:
I used linux-2.6.2-rc3-mm1 on a T40p 2373-G1G.
Config: http://zodiac.dnsalias.org/misc/262-rc3-mm1.acpi.config
Errors: http://zodiac.dnsalias.org/misc/syslog.acpi
lspci -v (on APM kernel): http://zodiac.dnsalias.org/misc/lspci

Booting is ok. All ACPI modules load without warning, only the relaxed AML 
seems to be needed.
What's working:
Battery monitoring, thermal monitoring, ac-adapter, lid-button are all ok.
The sound-system survives a suspend. Great.
laptop_mode is in this kernel, finally. Cool, Andrew!
Fan isn't recognized. Power-button is recognized, but gives no events.
C-states are not working right:
The CPU has C0-C3. C0 is full speed, the rest is slower. According to the ACPI 
documentation the CPU should switch automagically to the slower modes after 
some time of inactivaty. However it cannot controll busmaster PCI transfers 
in C3. Now some driver doesn't gets busmaster right, and due to this, the cpu 
never go's to C3 [Hope I got this right, I am no acpi master..](my went to C3 
after some fiddeling with suspend (see later) and the PCI-Bus crashed, hence 
I know. If my CPU uses C3, laptop_mode and backlight  mostly dimmed, I 
reached 5h+ :)
Other things that don't work:
When suspending, the USB-drivers don't get it right, and do not work after 
resuming. Unloading them before suspending and loading them afterwards 
doesn't help either. Additionally there seems to be issues with the PCI bus. 
I got random errors (everything between kernel-oops, error-loops and 
warnings) when reinserting the uhci_hcd module.
After resuming my power LED is not switched on (not so problematic), and the  
notebook doesn't ask for a password (Really problematic).
The e1000 module still needs the unload/load procedure.

Hope I'm right on this list. Tell me If I'd cc to an other one, please.
Include my in your cc's please, as I'm not reading this list.

regards
Alex

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