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Hi, I''m doing VGA passthrough for an ATI (HD 6770) graphics card to a DomU Windows. The passthrough itself is working. However, everytime when I reboot the DomU Windows, the whole machine freezes. I see no error messages from Dom0 kernel or the xen qemu log (or perhaps I haven''t got the most verbose debugging turned on?). Though from what I can tell, the the freeze happens

https://bugs.freedesktop.org/show_bug.cgi?id=30158 Summary: nouveau fails to display on external monitor Product: xorg Version: unspecified Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: Driver/nouveau AssignedTo: nouveau at