wingshigh.g Posted May 9, 2014 Share Posted May 9, 2014 Hi, I installed 10.9.2 into ESXi 5.1U2, I passed through a GPU to the Mac OS VM and did necessary modification to the device ID for it to recognize my ATI 4350. Obviously I am not able to disable the VM's default virtual display driver. So I moved the primary display to the GPU connected display and then mirrored it. My question is, with this setup, is the GPU primary display and providing the QE/CI function? Or is it something else? Thank you. Link to comment Share on other sites More sharing options...
wingshigh.g Posted May 10, 2014 Author Share Posted May 10, 2014 Removed the mirroring, made sure the GPU is the primary, the QE/CI is working on that GPU. So by enabling the mirroring, the QE/CI is gone. Anyone knows why? Logically I would think it inherits the primary GPU feature. I am also surprised that the video play back / audio playback is horrible even with the QE/CI on the passthrough GPU. I saw couple of posts talking about it. But anyone knows why this is bad even with passthrough GPU? Link to comment Share on other sites More sharing options...
ferebee Posted May 10, 2014 Share Posted May 10, 2014 QE/CI works by having the GPU do all the heavy lifting. If you enable mirroring to the ESXi virtual SVGA display, the CPU would have to copy the animation from the QE/CI enabled framebuffer to the SVGA at 60 fps. To make the SVGA display go away, you can use SwitchResX and create a custom setting with the SVGA disabled. As for video playback, what problems are you seeing? I’m using a PowerColor Radeon HD 7750 2 GB Eyefinity4 in a Supermicro X8DTH-iF with Dual Xeon 5549, passed through with ESXi 5.5U1, running at 2560 x 1440 @ 60 Hz over mini-DisplayPort. BTW I had to install newer Radeon drivers from OS X 10.9.3 (currently from 13D55) before I could switch to 2560 x 1440 resolution without causing a kernel panic. 720p YouTube video plays fine in Chrome, for instance. I don’t have any audio set up yet. The Radeon HD 7750 has HDMI audio, but I haven’t gotten OS X to recognize it – I think I’ll just use AirPlay for now. Link to comment Share on other sites More sharing options...
wingshigh.g Posted May 10, 2014 Author Share Posted May 10, 2014 Ferebee, thanks for the tips. My system is DQ45CB with Q9400 on a ESXi 5.1U2, ATI 4350 passthrough, and a PCOIP host card passthrough. Initially I thought it was the PCOIP card (for the sound issue) but when I connect directly to the vm, it had the same issue. My issue is the video playback is not smooth, the audio playback is even worse, cannot play continuously at all and even when it played, it was very bad. Link to comment Share on other sites More sharing options...
wingshigh.g Posted May 12, 2014 Author Share Posted May 12, 2014 So I disabled the audio devices that is directly attached to the vm; used my Apple TV as audio device to play the audio over airplay. That turned out to be a solution. It looks like USB audio device for VM just simply not supported. Link to comment Share on other sites More sharing options...
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