hybrid-graphics-linux team mailing list archive

[Bilal Akhtar <bilalakhtar@xxxxxxxxxx>]

On Thursday 02 June 2011 03:49 PM, Daniel Hauck wrote:
> The way I understand it, this technique is essentially using a "remote
> desktop" technology to access rendered output that would otherwise not
> be displayed on a monitor.  Basically, "run this program and display it
> on 'this' screen... now copy 'this' screen to the current display."  And
> since it is being addressed this way, only whole windows can go.
> 
> Now, there are video overlay techniques that have been used for a very
> long time that essentially uses dedicated hardware to render video and
> then passes it through the display hardware through a rectangle of
> specified size, shape and location.  What we need is THAT.  If we could
> use the same means as V4L to pipe the rendered graphics from memory to
> the active display, then this jpeg stream will not be needed and we
> should see an even better performance increase.
> 
> All of this likely needs lower level work in the X.org project.  I
> recently looked over at what they are doing at X.org about this and so
> far, it seems like no notice of the hybrid graphics/optimus problem has
> been taken.

+1

X.Org needs massive changes in the way it handles GPUs if it ever has to
work well with Optimus.

The case is not the same with Wayland. Wayland already has multi-GPU
support built-in. If Ubuntu moves to Wayland soon and nVidia writes
drivers for wayland (they've declined wayland support already, but in
the light of technologies like optimus, they might reconsider their
decision). If this happens then we'll get full optimus support on our
Waylands.

So all we can hope is wait for Ubuntu to implement Wayland, and wait for
nVidia to write a Wayland driver.

OR

Wait for X to improve its stack

OR

Use bumblebee :)

Bilal Akhtar.

> 
> This optirun/bumblebee thing is "the way forward."  I have little doubt
> about that.  But it needs to move into the X.org project in some way. 
> This is beyond some clever scripting and utilization of existing
> technologies which I consider to be "proof of concept."  And as proof of
> concept is concerned, I would say it is proof positive.
> 
> On 06/02/2011 05:36 AM, Stephen Brooks wrote:
>> Héctor,
>>
>>     I suspect vglrun only works for stand alone apps as opposed to
>> embedded windows as used by plugin, so perhaps this is not possible? 
>> I don't have much knowledge of vgl before using bumblebee so I can't
>> help much at this I'm afraid.
>>
>> Regards,
>> Steve
>>
>> On 01/06/11 15:25, Héctor Franqui wrote:
>>> @Bilal Akhtar: I tried installing Google Chrome and the running it
>>> with optirun64. It worked fine, however I can't activate OpenGL mode
>>> in Runescape anyway. Can you activate OpenGL mode? Because software
>>> mode isn't that good.
>>>
>>> @Stephen Brooks: Your solution seems to be what I was looking for,
>>> but then again, I don't know if the game can't detect that the Nvidia
>>> card is running because it defaults to software mode, it doesn't
>>> allows me to use OpenGL. Anyway, I think I got something wrong with
>>> bumblebee. I will Investigate further to check this out.
>>>
>>> Thanks for your help.
>>>
>>> 2011/5/31 Stephen Brooks <steve@xxxxxxxxxxxxx
>>> <mailto:steve@xxxxxxxxxxxxx>>
>>>
>>>     Hi,
>>>
>>>         I suspect you need to wrap the java_vm binary.  I used a
>>>     similar trick in the past to run it via aoss.  I'm not on my
>>>     laptop at the moment so this is all untested, might just work
>>>     can't think why it wouldn't.
>>>
>>>     Find and change to your java_vm directory ("locate java_vm"
>>>     should help)
>>>
>>>     For me is:
>>>
>>>     cd /usr/lib/jvm/java-6-sun/jre/bin
>>>
>>>     sudo mv java_vm java_vm_orig
>>>
>>>     sudo touch java_vm
>>>     sudo chmod a+x java_vm
>>>     sudo vi java_vm
>>>
>>>     Insert and save:
>>>
>>>     #!/bin/bash
>>>     exec optirun64 /usr/lib/jvm/java-6-sun/jre/bin/java_vm_orig
>>>
>>>     Probably need to restart your browser to cleanly exit any
>>>     currently running java_vm.  Let us know if it works :)
>>>
>>>     Regards,
>>>     Steve
>>>
>>>
>>>     On 30/05/11 21:13, Héctor Franqui wrote:
>>>>     Nope, I was thinking the same, but I can't activate the OpenGL
>>>>     mode, it remains on Software mode wihich works kind of laggy. Or
>>>>     perhaps the game doesn't supports OpenGL with VirtualGL. Just
>>>>     wondering. In Windows I fixed that by adding Java to the list of
>>>>     programs that runs with Nvidia, nonetheless in Linux I can't do
>>>>     that since the Firefox plugin seems to call directly the java
>>>>     executable and doesn't allow any launcher/shortcut that calls
>>>>     optirun and Java.
>>>>
>>>>     2011/5/30 Martin Juhl <mj@xxxxxxxxxxxx <mailto:mj@xxxxxxxxxxxx>>
>>>>
>>>>         Wont launching the browser with optirun work????
>>>>
>>>>
>>>>
>>>>        
>>>> ------------------------------------------------------------------------
>>>>
>>>>         *Fra: *"Héctor Franqui" <hfzorman@xxxxxxxxx
>>>>         <mailto:hfzorman@xxxxxxxxx>>
>>>>         *Til: *hybrid-graphics-linux@xxxxxxxxxxxxxxxxxxx
>>>>         <mailto:hybrid-graphics-linux@xxxxxxxxxxxxxxxxxxx>
>>>>         *Sendt: *mandag, 30. maj 2011 20:04:57
>>>>         *Emne: *[Hybrid-graphics-linux] Loading a web java applet
>>>>         with        optirun64/bumblebee
>>>>
>>>>
>>>>         One of my primary objectives for enabling the NVIDIA card on
>>>>         Linux is to play a Java-based online game named Runescape.
>>>>         The game has HD graphics which only run well with the NVIDIA
>>>>         turned on, however I'm currently unable to call Java with
>>>>         optirun64. I think this is because Firefox uses the Java
>>>>         plugin as intermediary and so I can't create a shortcut or
>>>>         launcher which calls optirun and Java in order for the later
>>>>         to be accelerated. Any idea on how to call Java using optirun?
>>>>
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>>>
>>>
>>
>>
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-- 
Bilal Akhtar - Ubuntu Developer <bilalakhtar@xxxxxxxxxx>
IRC Nick: cdbs

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