hybrid-graphics-linux team mailing list archive

[Albert Vilella <avilella@xxxxxxxxx>]

I am ccing hybrid-graphics-linux@xxxxxxxxxxxxxxxxxxx since this may be
useful to people working on the vga_switcheroo code...

On Wed, Aug 4, 2010 at 10:08 AM, Pascal Clémot <clemotp@xxxxxxxxx> wrote:
> Hi Guillaume,
>
> I tried the same thing on my UL30VT running Fedora 13 with 2.6.35 RC6 kernel
> (2.6.35-0.57.rc6.git1.fc14.x86_64). The nvidia card actually still appears
> with lspci,
> and there is no difference in power usage (using powertop for monitoring).
> It seems like the card is not turned off when using switcheroo...
>
> I noticed another thing: when I disable the nvidia card using switcheroo,
> and then
> I turn my laptop to sleep using Fn+F1, the system hangs, the cpu fan speeds
> up,
> and all I'm able to do is turn it off manually with the power button.
>
> I'll continue to test vgaswitcheroo of newer kernel release, but I'll keep
> the
> nvidia_g210m_acpi module loaded the rest of the time :)
>
>
> 2010/7/21 Guillaume Kulakowski <guillaume.kulakowski@xxxxxxxxxxxxxxxxx>
>>
>> Hi,
>>
>> I have an Asus UL30Vt with Fedora 13 and 2.6.35 RC5 kernel (futur F14
>> kernel).
>>
>> I use vgaswitcheroo for disable my Nvidia card :
>>
>> > root@zhukov /home/llaumgui> modprobe nouveau
>> > root@zhukov /home/llaumgui> mount -t debugfs none /sys/kernel/debug
>> > root@zhukov /home/llaumgui> cd /sys/kernel/debug/vgaswitcheroo
>> > root@zhukov /sys/kernel/debug/vgaswitcheroo> echo OFF > switch
>> > root@zhukov /sys/kernel/debug/vgaswitcheroo> cat switch
>> > 0:+:Pwr:0000:00:02.0
>> > 1: :Off:0000:01:00.0
>>
>> But, I think that my card is not realy power off :
>> > root@zhukov /sys/kernel/debug/vgaswitcheroo> lspci | grep VGA
>> > 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series
>> > Chipset Integrated Graphics Controller (rev 07)
>> > 01:00.0 VGA compatible controller: nVidia Corporation GT218 [GeForce
>> > G210M] (rev a2)
>>
>> What do you think about it ?
>>
>> Thx
>> --
>> Jabber/Gtalk : llaumgui@xxxxxxxxx
>>
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>
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