Hello, On Wed, Oct 08, 2025 at 04:07:51PM +0200, Uwe Kleine-König wrote: > On Wed, Sep 24, 2025 at 04:33:33PM +0000, dec first wrote: > > Please let me know if any additional information or further testing is required. > > I think what happens when you start kvm (or whatever virtual machine > manager you're using) is that the amdgpu driver is unbound and after > Windows shut down the driver is bound again to the hardware. > > I guess unbinding fails to release all resources. Can you try without > the virtual windows to just do: > > echo 0000:03:00.0 > /sys/bus/pci/drivers/amdgpu/unbind > echo 0000:03:00.0 > /sys/bus/pci/drivers/amdgpu/bind > > Does this result in error messages, or a working driver? To get to a better solution than hacking the vfio_pci driver to bind to the graphics card before amdgpu does, answering the above question would be helpful. Best regards Uwe
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