So i have 2x 1030gt gfx card, 1 of them is assigned to my windows VM which works great.

 

Im trying to assign the other to my Linux mint, im picking seabios and the gfx card i want to use and the rom file but it gives me a black screen?

 

this is log when the VM is running 

 

2018-05-20 16:52:18.860+0000: starting up libvirt version: 4.0.0, qemu version: 2.11.1, hostname: mediaserver
LC_ALL=C PATH=/bin:/sbin:/usr/bin:/usr/sbin HOME=/ QEMU_AUDIO_DRV=none /usr/local/sbin/qemu -name 'guest=Linux mint2,debug-threads=on' -S -object 'secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-7-Linux mint2/master-key.aes' -machine pc-q35-2.11,accel=kvm,usb=off,dump-guest-core=off,mem-merge=off -cpu host -m 1024 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid b1623826-3fe7-8881-8604-1ab77929de3d -display none -no-user-config -nodefaults -chardev 'socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-7-Linux mint2/monitor.sock,server,nowait' -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=delay -no-hpet -no-shutdown -boot strict=on -device pcie-root-port,port=0x8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 -device pcie-root-port,port=0x9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 -device pcie-root-port,port=0xa,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x2 -device pci,netdev=hostnet0,id=net0,mac=52:54:00:c8:96:22,bus=pci.1,addr=0x0 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -chardev 'socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/domain-7-Linux mint2/org.qemu.guest_agent.0,server,nowait' -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 -device vfio-pci,host=2d:00.0,id=hostdev0,x-vga=on,bus=pci.4,addr=0x0,romfile=/mnt/user/downloads/Gigabyte.GT1030.2048.170417_LowProfile.rom -device usb-host,hostbus=3,hostaddr=2,id=hostdev1,bus=usb.0,port=1 -device usb-host,hostbus=1,hostaddr=11,id=hostdev2,bus=usb.0,port=2 -device virtio-balloon-pci,id=balloon0,bus=pci.5,addr=0x0 -msg timestamp=on
2018-05-20 16:52:18.860+0000: Domain id=7 is tainted: high-privileges
2018-05-20 16:52:18.860+0000: Domain id=7 is tainted: host-cpu
2018-05-20T16:52:18.900794Z qemu-system-x86_64: -chardev pty,id=charserial0: char device redirected to /dev/pts/2 (label charserial0)

Can anyone help me here please

Have you posted multiple post about the same? I could swear I asked if you have tried using ovmf.