hybrid-graphics-linux team mailing list archive

[Wei-Ning Huang <aitjcize@xxxxxxxxx>]

2011/2/5 Wei-Ning Huang <aitjcize@xxxxxxxxx>

>
>
> 2011/2/5 Michal Biskup <eiver@xxxxxxxxx>
>
>  Hi,
>>
>> The real question is: Will acceleration from Sandy Bridge CPU start
>> working after disabling nvidia?
>>
>
Same question here, or is it possible to switch of the Sandy Bridge CPU and
use nVidia instead?
I need CUDA on Linux ...


>
>
>> Cheers,
>>
>> Michal Biskup
>> eiver@xxxxxxxxx
>>
>
>
>>
>>
>> On 02/04/2011 04:32 PM, Jesus Monzon Legido wrote:
>>
>> Hello everybody, I owns a XPS L501X.
>> Upfront:  Linux and Graphics Adaptors are unknown to me, so what I write next might be useless. I cannot judge it.
>>
>> machine: XPS L501X
>> sysversion: A04
>>
>> from lspci I got:
>>
>> lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA
>> 00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 18) (prog-if 00 [VGA controller])
>> 02:00.0 VGA compatible controller [0300]: nVidia Corporation Device [10de:0df1] (rev a1) (prog-if 00 [VGA controller])
>>
>> trying with the 'test_off' i got no positive results. However I fetch a copy of acpi_call from https://github.com/peberlein/acpi_call
>> and running the "m11xr2.sh" script throw some positive results.
>>
>> then, a new lspci:
>>
>> lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA
>> 00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 18) (prog-if 00 [VGA controller])
>> 02:00.0 VGA compatible controller [0300]: nVidia Corporation Device [10de:0df1] (rev ff) (prog-if ff)
>>
>> Note how the nVidia line changed. It is not longer labeled as 'VGA controller' so I suppose it is off.
>>
>> On the same way, the 'present rate' of battery consumption (cat /proc/acpi/battery/BAT0/stat) dropped from 2500mW to 2000mW.
>>
>> Finally I follow the steps on [#3 Disable the nvidia gaphics card to increase battery life] adapted to my card
>> http://robbyx.net/blog/?p=190
>>
>> so that it is switched off on each system logon. I attach the nvdown that worked for me (the one in the article is for Asus Laptop).
>>
>>
>> Sincerelly I dont know If I really switched off the nVidia card or it is just an illusion. Hope anybody can help me to confirm that
>>
>> -J-
>>
>>
>>
>>
>>
>>
>>
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>>
>>
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>>
>
>
> --
> Aitjcize
> My blog: http://berelent.blogspot.com/
>



-- 
Aitjcize
My blog: http://berelent.blogspot.com/