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Hi,
I bought a new laptop (the model stated in the subject) and I want to dual-boot with windows (because of the graphic software adobe etc).
The have not yet installed but I want to do this soon enough, the objective is completely disable the ATI card and using only Intel card when I use arch.
Simply not installing the driver will do the job?
My intel graphic card is :
Device: 00:02.0
Class: VGA compatible controller [0300]
Vendor: Intel Corporation [8086]
Device: 2nd Generation Core Processor Family Integrated Graphics Controller [0116]
SVendor: Hewlett-Packard Company [103c]
SDevice: Device [3581]
Rev: 09
Driver: i915
Module: i915
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The second question is related to the processor,
I have 4 cores
model name : Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz
The objective here is to put 3 cores in "sleep mode" if that exists and use randomly 1 of the cores after each boot.
I know that :
# for i in 0 1 2 3; do cpufreq-set -c $i -g ondemand; done
but this will put in "ondemand" all the 4 cores, I want to set to maybe from 1 to 2 ghz 1 core and put in "sleep mode" the others.
Which of the following is less power consuming?
modes:
conservative
ondemand
userspace
powersave
performance (yes I know it's not but maybe I can set one of the cores in this mode?)
Thanks
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Simply not installing the driver will do the job?
I doubt so. You need to get your hybrid graphic under control first either by using vgaswitcheroo or via an acpi_call. Make sure you're using KMS for the intel one and then you should not have any problems.
As for your second question, is there any specific reason why you want 3 of your cores to 'sleep' and just one to be 'alive' ??
anyhow, you could try to 'cpufreq-set' 3 of the cores to powersave and just one put ondemand and configure its clock speed.
Take Care
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Yep, just for power-saving, and normally I don't make any high-resource consuming job on linux so I wanted to preserve the battery life for more H.
How can I use randomly 1 of the cores after each reboot ? (without consuming only 1 core everytime) any script in mind?
Any detail on how to get the card off with acpi_call?
Currently on ubuntu I added radeon.nomodeset=0 on the boot line and lshw shows "the device has not been claimed" will the same work for arch?
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Any detail on how to get the card off with acpi_call?
I'm using this method for my HP G62 with a hybrid ati graphic. You basically need to build the acpi_call-git package from AUR and then load the acpi_call module and run the test-off.sh to see if one of the calls works for your card.
to implement this on boot load the acpi_call in your rc.conf and add the following to your rc.local:
logger -t disabling the ati card
echo '\_SB.PCI0.P0P2.PEGP._OFF' > /proc/acpi/call
Of course, replace the call with the corresponding one
Regarding your CPU question, I really do not know a solution for that, but a simple shell script can do the job
Hope that helps.
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thanks allot, I will try that.
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