[ltp] Thinkpad R40 2722: various CPUFREQ troubles

Eric Gourgoulhon linux-thinkpad@linux-thinkpad.org
Sat, 13 Dec 2003 18:37:11 +0100

Sebastian Kapfer a écrit :
> Am Do, den 11.12.2003 schrieb Eric Gourgoulhon um 15:35:
>>Switching the computer off: after a shutdown, the screen automatically
>>switches off but the computer stays on. One has to press the I/O
>>button for a few seconds to power off the computer. 
> My Thinkpad had the same problem. It disappeared when I disabled "APIC
> on uniprocessors" from the processor features menu. I think the kernel
> option "noapic" does the same.

Thanks for the advice.
Is it harmfull to disable APIC ?
i.e. does it decrease the CPU performances ?


Eric Gourgoulhon
Laboratoire de l'Univers et de ses THeories (LUTH)
UMR 8102 du CNRS / Observatoire de Paris, F-92195 Meudon Cedex, France
tel: +33 (secretariat : +33
e-mail: Eric.Gourgoulhon@obspm.fr    WWW: http://www.luth.obspm.fr/