hybrid-graphics-linux team mailing list archive

[Albert Vilella <avilella@xxxxxxxxx>]

This may be just saying the same with different words, but there are
some optimus laptops that have
a BIOS "compatible" setting (I've got one), and under such setting,
only the nvidia card shows up in Linux and Windows.

So there must be an option in these laptops to present the graphics
configuration as "only nvidia" to the OS, so that
pre-windows7 OSes can see the nvidia card.

On Wed, Apr 6, 2011 at 2:51 PM, Michael Reid <kid.meier@xxxxxxxxx> wrote:
>> But I *can* load the Nvidia binaries, even that no chance to get my dGPU running?
>
> I believe the answer here is no. At least you won't be able to see the
> output of the Nvidia GPU. In Optimus laptops, the Nvidia GPU is not
> connected to the actual display, instead it just renders into the same
> surface as the IGP which then displays the image. So while the driver
> may load and it may even be rendering the X desktop for you, it has no
> way of actually sending the output to the screen.
>
> I'm sure I have messed up some details, but that is the basic idea. I
> don't have the links handy, but there are a few forum posts around
> that explain this in more detail. Also Nvidia have released an Optimus
> whitepaper, that goes into plenty of detail.
>
> /mike.
>
> On Wed, Apr 6, 2011 at 1:28 AM, Daniel Stender <daniel@xxxxxxxxxxxxxxxxx> wrote:
>> "Out of the box" the Nvidia binaries get loaded fine (my xorg.log: http://paste.debian.net/113133/)
>> if I give "PCI:1:0:0" to BusID in the xorg.conf, but I've got blank console screen after the
>> X-Server fires up.
>>
>> There is no bios switch like: "Only specific laptop models are able to switch to pre-Windows7
>> "compatible" BIOS mode so that the OS can see the nvidia graphics card. This is the only way to load
>> the nvidia binary drivers so far."
>>
>> But I *can* load the Nvidia binaries, even that no chance to get my dGPU running?
>>
>> Greetings,
>> ds2011
>>
>> On 06.04.2011 06:54, Daniel Stender wrote:
>>> Hi people,
>>>
>>> new notebook ... Nvidia GT 425M Optimus with no bios switch. Would like to run the Nvidia, I can run
>>> test.
>>>
>>> and send an email to the mailing list specifying your laptop model with these commands:
>>> sudo dmidecode -s system-product-name: B7130
>>> sudo dmidecode -s system-version: Not Applicable
>>> 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 02) (prog-if 00 [VGA controller])
>>> 01:00.0 VGA compatible controller [0300]: nVidia Corporation Device [10de:0df0] (rev a1) (prog-if 00
>>> [VGA controller])
>>>
>>> Thanks guys,
>>> DS2011
>>
>>
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