hello, I recently update from fedora 24 to fedora 26 and i was having the same problem that you with mi gtx 970.
the ovmf that i was using in fedora 24 comes from a repo that compiles from git testing here and there, I realize that if i change ovmf.git to normal ovmf the machine with vga passthrough start to work again... so i think your problem is with the ovmf version. this is the version running for me: Nombre : edk2-ovmf Versión : 20170209git296153c5 Lanzamiento : 4.fc26 Arquitectura : noarch Tamaño : 6.3 M Fuente : edk2-20170209git296153c5-4.fc26.src.rpm Repo : @System Desde repo : @commandline Resumen : Open Virtual Machine Firmware URL : http://www.tianocore.org/edk2/ Licencia : BSD and OpenSSL Descripción : EFI Development Kit II : Open Virtual Machine Firmware (x64) and this version not work: Nombre : edk2.git-ovmf-x64 Versión : 0 Lanzamiento : 20170727.b2815.gfff2623cc2 Arquitectura : noarch Tamaño : 14 M Fuente : edk2.git-0-20170727.b2815.gfff2623cc2.src.rpm Repo : @System Desde repo : @commandline Resumen : Open Virtual Machine Firmware URL : http://sourceforge.net/apps/mediawiki/tianocore/index.php?title=EDK2 Licencia : BSD License (no advertising) with restrictions on use and redistribution Descripción : EFI Development Kit II : Open Virtual Machine Firmware : 64bit version PD: sorry for bad english and bad expresions 2017-07-30 10:47 GMT+02:00 Jeremy Visser <jeremy.vis...@gmail.com>: > Are there really no clues anybody could give? I'm really at a loss. > > Since I wrote the below, I also downloaded a copy of Fedora 21 (yep, going > retro) and couldn't get it going even then. Also rolled back my BIOS > version in case that had something to do with it. > > Even though I get the blank screen issue when forwarding my GPU, > forwarding other types of cards works fine. For example, I often pass > through my wireless PCI card through to a VM which works fine. > > _______________________________________________ > vfio-users mailing list > vfio-users@redhat.com > https://www.redhat.com/mailman/listinfo/vfio-users > >
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