ICH9 emulation causing problems with Windows 7 - mouse control and shutdown issues.

[R160K]

I have Windows 7 installed on a physical hard drive, and in Ubuntu 14.10 I have a virtual machine that boots Windows on that hard drive. I was using PIIX3 emulation with no issues, but needed to use PCI passthrough for a DVB-S2 satellite card so had to switch to ICH9 emulation to use that feature. The PCI card is recognised no problem, but both mouse-pointer integration and mouse capture mode do not work - the only way to use a mouse is to pass control of a USB mouse to the guest. Mouse integration works fine in safe mode.

Additionally, there is an issue with shutting down. The shutdown procedures runs as normal, but afterwards a blue-screen appears reporting errors with VBoxGuest.sys - PAGE_FAULT_IN_NONPAGED_AREA - and the VM restarts. No "Windows didn't shut down properly" is reported, and it starts up fine (except for the aforementioned mouse integration problems). When restarting rather than shutting down, no problem occurs. Screenshot of bluescreen is attached.

[R160K]

Screenshot of bluescreen

[R160K]

UPDATE: Detaching the PCI card solves the problem - doing further testing now...

[R160K]

When re-attached to a different virtual port 03:00.0 instead of 04:00.0, mouse integration works fine until the drivers are automatically installed, after which it fails - blue screen occurs on shutting down. It seems this is a problem with PCI Passthrough rather than ICH9 as originally thought. Would modify title of the question, but can't.

The DVB-S2 card in question is the SkyStar S2, using the manufacturer's supplied drivers.