USB Passthrough 1.1 performance problem...

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Hi,


I am using a tv card in a VM and get jerky video.As I understand it, the VM is using USB 1.1. However, when I set the USB controller in the BIOS of my server to Fullspeed (12 Mbit/s) which is the USB 1.1 speed I am able to get perfect results on the host but still on the guest the video is jerky.

Are there some tuning parameters I can use or perhaps even kernel configuration paramters on the host to solve this?

Cheers
  Erik

Host:    Motherboard Supermicro X8DTi-F, Intel Xeon L5630, 12MB
             OS: Opensuse 11.3 64 bit

Guest:   OS: Opensuse 11.3 64 bit
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