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Re: [vfio-users] vfio-pci disable_vga but still t rying to switch....


I want to be able to use:

My problem is that when i boot, the vga arb is making the combo intel / old radeon buggy: no dri2, so no dri-prime also. I wanted to avoid i915 patch... But this state is present even before the vm is booted (note that it use ovmf pure efi).

I made quite a lot of tries. and it seems the intel card can't boot on uefi. (when i disable csm or move csm to uefi only, the intel card simply disapear from lspci (and thus, the r9 is used)

Deldycke Quentin

On 12 March 2016 at 16:25, Alex Williamson <alex l williamson gmail com> wrote:
On Sat, Mar 12, 2016 at 8:13 AM, Quentin Deldycke <quentindeldycke gmail com> wrote:

I wanted to disable CSM on my computer (asrock extreme 6)

Let's start here, what do you hope to accomplish by disabling CSM on the host system?  Host CSM/VGA usage has no bearing on the vfio-pci.disable_vga parameter.  That option simply disables VGA space access to the device through vfio and therefore opts out of VGA arbitration.  Perhaps you're reading more into the option than is necessary.  Thanks,


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