[GEM-dev] NVidia optimus on Linux and Gem

[Jaime Oliver]

Hi Menno,

The work that pix_drum does is done in the cpu. I would imagine
openframeworks will work similarly.

I have used not so fast intel c2duo processors (2.2Ghz) with a not so
big cache (3MB) and it has worked fine at 320x240 and 75fps. bigger
resolutions or higher frame rates will require faster processors...

best,

J



On Aug 23, 2011, at 12:20 PM, Menno van der Woude <mennowo at gmail.com> wrote:

> hello,
>
> related to this topic: I am also looking into buying a laptop for a
> project I am doing.
> I made a port of (a revised) [pix_drum] to openframeworks, then use
> OSC to send info to Pd.
> Pd will generate sound based on the info it receives.
>
> I am wondering: is there a big difference for this and similar tasks
> between i5 and i7 processors?
> It's a big price difference, and if results for graphics and sound
> tasks are the same I will prefer i5...
>
> Also, how are things going with using Nvidia graphics?
> Using 3D will not be necessary at this moment in this project, but I
> may wish to do so in the future.
> Since I look into buying something like Asus X53SV, it is relevant.
>
> Bye,
> menno
>
> On Thu, Aug 18, 2011 at 5:56 PM, cyrille henry <ch at chnry.net> wrote:
>> hello,
>>
>> i'm using an ATI on ubuntu for a project.
>>
>> It's mainly working (good screen configuration, shaders are ok, etc).
>> the only problems are :
>> - error on pd log at every frame.
>> - crash when destroying the gem windows...
>>
>> so, ATI will certainly be a good option in the future.
>>
>>
>>
>> For now, a solution to control optimus on linux look to work for some
>> computer, but it's still is very young.
>> Nvidia still provide driver for there card.
>>
>>
>>
>> Having to install a kernel that is released after the hardware to use is not
>> really a surprised, imo.
>>
>> Cyrille
>>
>>
>>
>> Le 18/08/2011 17:37, John Harrison a écrit :
>>>
>>> I'm a little confused about the problem. I can live without Optimus
>>> technology but if future Nvidia cards that support Optimus don't offer a
>>> decent driver with 3D accel that's a different problem. What exactly is the
>>> situation? Are the ATI Linux proprietary drivers still not a reasonable
>>> alternative?
>>>
>>> On 08/18/2011 09:10 AM, Benjamin ~ 01xy wrote:
>>>>
>>>> Hello,
>>>>
>>>> I bought a Asus N53SN recently, no way to activate/desactivate graphics
>>>> cards in the BIOS till now (BIOS 206), whereas it seems to be possible on
>>>> thinkpad laptops
>>>> first install of bumblebee from ppa didn't worked for me, I didn't took
>>>> the time yet to make it work, hope it will
>>>> I had to install a recent kernel (2.6.35) on ubuntu 10.04 to have at
>>>> least full resolution on the intel graphic card
>>>>
>>>> ++
>>>> Benjamin
>>>>
>>>>
>>>>
>>>> jack at rybn.org a écrit :
>>>>>
>>>>> I just bought a Asus N55SF with NVidia GT 555 with Optimus.
>>>>> I hope i could activate the NVidia card and desactivate the Intel card
>>>>> with BIOS. I pray.
>>>>> I keep you informed.
>>>>> ++
>>>>>
>>>>> Jack
>>>>>
>>>>>
>>>>>
>>>>>> hello,
>>>>>>
>>>>>> having to buy a good linux computer with good GPU nowday is not so
>>>>>> easy,
>>>>>> manly because of optimus.
>>>>>> but it look like are going good.
>>>>>> http://www.martin-juhl.dk/2011/05/optimus-on-linux-problem-solved/
>>>>>>
>>>>>> good luck
>>>>>> Cyrille
>>>>>>
>>>>>>
>>>>>> Le 15/08/2011 15:29, jack at rybn.org a écrit :
>>>>>>>
>>>>>>> Hello,
>>>>>>>
>>>>>>> I would like to know if people on this list use a NVidia graphic card
>>>>>>> with
>>>>>>> Optimus on Linux and Gem and tell us if they encounter problems ? I
>>>>>>> would
>>>>>>> like to buy a new laptop but i read in different forum that NVidia
>>>>>>> doesn't
>>>>>>> plan to develop a driver on Linux using this technology. I also read
>>>>>>> that
>>>>>>> this technology with i5 Sandy Bridge and NVidia GT 540 might suffer of
>>>>>>> throttling (that could be a big issue in a peformance using Pd and
>>>>>>> Gem).
>>>>>>> I
>>>>>>> am looking for a good laptop to use Gem with a weight< 2.2 kg.
>>>>>>> Thanx.
>>>>>>> ++
>>>>>>>
>>>>>>> Jack
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
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>>>>>
>>>>>
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>
>
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