Silverlight hardware-accelerated playback is greyed-out - How do I enable it?

Posted by Not So Sharp on Super User See other posts from Super User or by Not So Sharp
Published on 2012-10-13T00:34:33Z Indexed on 2012/10/13 3:40 UTC
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Filed under:

windows-xp

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gpu

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Silverlight

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netflix

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hardware-acceleration

I am trying to play Netflix videos (which only play via Silverlight), but they play choppy because Silverlight's hardware-accelerated playback is disabled.

(video playback on WMP11 and VLC is flawless, so I know beyond certainty that my built-in video card's hardware is perfectly capable of hardware-accelerated playback)

enter image description here

I have the latest & greatest Silverlight version: 5.1.10411.0

And I tried to "un-grey-it-out" via the Registry's GPUVideoDecodeEnabled and UpdateMode, but that didn't help.

Is there any way to "un-grey-it-out"?

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