hybrid-graphics-linux team mailing list archive

[snake4d <snake4d@xxxxxxxxx>]

I can disable the NVidia GPU by restarting X server with xorg.conf for
only intel chip,
unloading nvidia kernel module and run apci_call to turn it off. To
turn it on reverse the
sequence. This is just a simple script.

Pavel.

On Sat, Oct 15, 2011 at 12:57 AM, Eric Appleman <erappleman@xxxxxxxxx> wrote:
> The Windump method is pretty sweet when you set it up right. The only
> drawback is that you can't turn off the Nvidia GPU without freezing up your
> system.
>
> On of the side projects for the Bumblebee team right now is running Windump
> through a Bumblebee X server. By doing this, we can disable the card when
> we're not using it.
>
> - Eric
>
> On 10/14/2011 06:39 PM, snake4d wrote:
>>
>> Hi all,
>>  thanks to Hybrid-windump project https://github.com/harp1n/hybrid-windump
>>
>> I have ASUS N53JF with GeForce GT 425M. With new installation of
>>  Ubuntu 11.10 (GNU/Linux 3.0.0-12-generic x86_64) I have tried to use
>> NVidia board once again.
>> Using Bumblebee gives no fun and it gives only 328 fps in glxgears app.
>> Finally I come to hybrid-windump and it really does right job.
>> First, you have to setup proprietary nvidia driver (I used default
>> nvidia driver 280.13
>> from ubuntu repository) and attach it to second screen. While
>> first screen  is served by intel chip. Take a look at xorg.conf example in
>> Hybrid-windump project. Then you have two screens:
>> :0.0 - attached to intel
>> :0.1 - attached to nvidia.
>>
>> Then you run windump like
>> # ./windump :0.1 :0.0
>>
>> and run any opengl software like
>> # DISPLAY=:0.1 glxinfo
>>
>> OpenGL program starts on second screen :0.1 and you can see output and
>> interact with
>> it just when you move mouse to the right outside first screen :0.0. To
>> return back on the
>> first one just move mouse to the right outside of the second screen.
>> Real fun! With this I have
>> pure NVidia GPU rendering and not pain of the intermediate layer
>> solution. Windump just copies
>> full root window on intel board via shared memory and forward events
>> in between two screens.
>> Glxgears gives 2850 fps, blender and other opengl software run smoothly.
>>
>> Best regards,
>> Pavel.
>>
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