Hi everyone,

first of all a Happy New Year to all of you and all the best too!

And now to the problem....
I have a Dell Inspiron 8000 Laptop with PIII Mobile processor. I'm 
trying to find a suitable kernel configuration that would allow me to 
use the infrared port with my Nokia phone on a day-to-day basis and not 
only occasionally ( well, basicly it works when it wants to, not when I 
want it to - I might get a suitable result from irdadump promptly 
reporting the phone being there, and then keep on trying for five days 
with irdadump being blind for it all the time )... And untill then I'm 
stuck with old bloody Windows (R!!!).
 From what I've tried so far, the best setup is to have local APIC with 
IO-APIC + ACPI for power management. APM won't do it at all. But I seem 
to have a problem with APIC and changes of the power state. APIC gets 
discovered and enabled when the kernel boots with no indication of any 
problem. ACPI works too. Now, if I detach the power cable when it's 
plugged in or vice versa, the system hangs without any chance for 
recovery than hard boot. Here is the setup:
Debian GNU/Linux, testing
Dell Inspiron 8000, PIII Mobile@700-800MHz, Intel i815 chpset, 256 MB RAM
SMC-IRCC infrared chip LPC47N252 (if that matters to anyone)
acpi-20011205 patch (unpached vanilla source from 2.4.16 up compiles but 
is not working, gives many errors in acpi at boot about something not 
being true owner or similar)
avm1_cs isdn patch
obeserved hang behavior allways reproducable with kernels 2.4.16, 
2.4.17-pre8, 2.4.17, 2.4.18-pre1, 2.5.1, 2.5.2-pre3 with APIC + either 
ACPI or APM, tried compiles with gcc-2.95.4, gcc-3.0.1, gcc-3.0.2, gcc-3.0.3
This hangs occures allways when APIC support on uniprocessors is 
compiled in, no matter what power managemnet sheme is used. It never 
occures when APIC is not present, no matter of which kernel version 
you'd take. Besides this, with APIC compiled in, shutdown -h or even 
halt -f fails to pwer off the sistem (it goes down and halted but the 
power remains on). I couldn't find anything in my logs that would help 
indicateing the problem....

.config and dmesg attached (without APIC, just add it and you'll make 
the difference between the two setups).

Kindly regards,
Todor

PS The only difference in dmesg with APIC is the 2 lines near the top:
Local APIC for uniprocessors found
APIC disabled by bios, reenableing

Anyone got any clue?