<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"></style> </head> <body dir="ltr"> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Arial,Helvetica,sans-serif;" dir="ltr"> <p>I had a weird bug with my Radeon 5770 where OVMF would display either a black screen or totally garbage output if I had less than 2 GiB in the VM. You're using just 1, try with 2. Try also with Chipset Q35 instead of 440FX (-M q35).</p> <p><br> </p> <p>Also, for correctness sake, add a PCIe Root Port and attach the card to it:</p> <p><br> </p> <p><span>-device ioh3420,chassis=0,id=pcie.1 \</span></p> <p><span></p> <div>-device vfio-pci,host=01:00.0,multifunction=true,bus=pcie.1,addr=00.0 \</div> <div>-device vfio-pci,host=01:00.1,bus=pcie.1,addr=00.1 \</div> </span> <p></p> </div> </body> </html>