[ltp] Re: Hot Sleep

[edonia]

Am Sun, 02 May 2004 14:06:14 -0700 schrieb James McKenzie:

> Crispin and others:
> 
> ACPI is NOT ready for production, it is still in testing.  I suggest using
> APM to suspend to ram or disk until it is ready and STABLE.   I do not use
> ACPI with my A22p because of problems suspending to disk with it to the
> same drive files for Windows98.
> 
> James McKenzie
> 
> 
> Crispin Cowan wrote:
> 
>> In all of my previous laptops (Toshiba Tecra 700, Toshiba Tecra 530, and
>> IBM Thinkpad 770Z) suspend to RAM has burned about 1% of battery per
>> hour, and the machine was cool to the touch. With my new T40, it sleeps
>> rather more hot. Even when it has been suspended for hours, it is hot to
>> the touch, and looking at the change in battery levels, it is burning at
>> least 10% of battery power per hour while suspended.
>>
>> Is this a normal new effect of suspend to RAM on the T40? Is the ACPI
>> suspend driver somehow failing to power down a hot component?
>>
>> I'm running SuSE 9.1 (the new one) and using ACPI. I suspend the machine
>> with "echo -n "mem" > /sys/power/state" and wake it by pressing the
>> power button.
>>
>> Thanks,
>>    Crispin
>>

i do use acpi, because while running youre machine on battery power, it
will last much more longer, than apm. the temerpature is lower, the speed
step works (56 to 1600MHz).

yes, there in a known problem with the thinkpad and suspend to ram on acpi
enabled machines.

my workaround:
just using suspend to disk....it does not need any power. for short
brakes, i close my lid, to turn off the blacklight, nothing else...

suspend to disk works on my machine since kernel 2.6.1 without any
problems...needed a kernel kompailed wihtout 3d acceleration.

edonia