[ltp] Thinkpad R40 2722: various CPUFREQ troubles

[Frank Schaeckermann]

I have never even tried to use APIC and had the same problem at the 
beginning on my T40p. It turned out, that the option 
CONFIG_APM_DISPLAY_BLANK had to be set to 'n' for the final switch off 
to work automatically.

Frank

Eric Gourgoulhon eric.gourgoulhon-at-obspm.fr |Linux on ThinkPads| wrote:
> Sebastian Kapfer a écrit :
> 
>> Am Do, den 11.12.2003 schrieb Eric Gourgoulhon um 15:35:
>>
>>
>>> http://www.luth.obspm.fr/~luthier/gourgoulhon/ThinkPad/
>>
>>
>>
>>> 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.
>