Hello, I want to be able to use:
- r9 290 on vm using vfio (actually working) - intel graphic card on host - another amd card (but rather old, different the r9 290) on host (to at least, if it work, change it to a nvidia card who support hdmi 2.0) 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 <[email protected]> wrote: > On Sat, Mar 12, 2016 at 8:13 AM, Quentin Deldycke < > [email protected]> wrote: > >> Hello, >> >> 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, > > Alex >
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