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Khumarahn
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Joined: 17 Apr 2009
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PostPosted: Fri Feb 06, 2015 9:58 pm    Post subject: nvidia bumblebee on a desktop Reply with quote

Hi!

I couldn't make bumblebee work on my desktop computer (not a laptop) with an integrated intel haswell graphics and a discrete nvidia card.

Can it possibly work? Or maybe there's some hardware missing, that I didn't think about?
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NeddySeagoon
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PostPosted: Fri Feb 06, 2015 10:17 pm    Post subject: Reply with quote

Khumarahn,

Bumblebee is for systems that only have one and a half graphics systems.
The idea is that the low power graphics always refreshes the screen from the pixel buffer but either one can draw the image.
This is called a muxless system. The high power, high performance graphics has no way to drive the screen.

Older systems had two complete graphics systems and a multiplexor (electronic switch) to switch the video output connectors between the two graphichs systems.
This was controlled by vgaswitcheroo in the kernet

You have two completely separate graphics systems and no multiplexer, so neither will work for you.
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NeddySeagoon

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Khumarahn
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PostPosted: Fri Feb 06, 2015 10:23 pm    Post subject: Reply with quote

So, multiplexer is hardware. Interesting.

Thank you!
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