Display device required to use QuickSync ?

Display device required to use QuickSync ?

If and why is a display device required to use QuickSync on 2nd gen Core i7 ?

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Its not a MSDK defined requirement. If the SDK can access the device and use it it will. A possible alternative had been discussed in this thread:


Hope it helps..


Eric, thanks for teh answre and link. Actually we want to use QuickSync without any display connected, i.e. in a headless mode, just streaming data in over network, transcoding it and streaming it out over network again. So, we neither have a display attached to the intel GPU nor do we have a secondary GPU.

The last post in the above link shows how to enable QuickSync when the Intel GPU isn't connected.For HW acceleration work (DXVA), a screen must be connected to the GPU that creates the device. This is a DirectX9 limitation.What you can do is connect a screen to one port and extend the desptop to another, later remove the actual connection. The trick is to keep the disconnected screen a part of the desktop so DirectX will enumurate it.
Annoying? Yes. But drivers must comply with the OS requirements.

Eric Gur,
Intel QuickSync Decoder Author
Processor Client Application Engineer
Intel Corp.

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