You could try ours! I suspect if the performance is just too low, there might not be a way to force Windows to do compositing and blending on the CPU. I know that UltraVNC uses a mirror driver too in some way, but I've not looked into their implementation. I work for RealVNC, and we use a mirror driver to help address this somewhat by grabbing the draw commands before they're sent to the chip for compositing, and hold our own buffer. When VNC tries to run with Aero, it will have to kill some of the hardware acceleration and force the CPU to do rendering, so it can capture the screen state. If they're just being sent to the monitor, that's fine, but Aero depends to a certain extent on hardware acceleration. Unfortunately, what that means is that the screen buffer gets handed over to the graphics chip, and the OS never sees the final rendered frames. ![]() This is due to the fact that, DEll XPS has NVIDIA Optimus technology which will turn off the graphics card for low graphics applications to save power. ![]() Even without a dedicated graphics card, the onboard graphics can process the layers much much quicker. But Desktop performance for windows aero may be a low value on your WEI rating, so the base score will also a low value. Aero uses a lot of alpha blending, which needs hardware acceleration to be performant.
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