enable GPU(AMD) rendering with QXL using SPICE

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I'm pretty new to SPICE and using remote-viewer. I have a linux host and Window guest OS.


When I try to use remote-viewer to launch it with SPICE, what I noticed is that the rendering seems to be very slow and blocky. It seems things are being updated one/few blocks at a time, which seems to indicate to me that it's using CPU to render.


A few of questions regarding this behavior:


1) How do I may sure that SPICE is actually picking up GPU to render on the Host instead of using CPU? Or is it actually using the Client CPU/GPU to render?


2) If I understand correctly, it's using QXL driver to do the Graphics rendering. Is QXL supporting only 2D rendering or 3D as well? And is it using CPU or GPU to do the rendering?


3) For the questions above, is there any way/config for me to change, so that SPICE and switch between using CPU/GPU to render, also whether it's using Host/Client GPU?


Thanks a lot!





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