January 11, 20197 yr I'm trying to get GPU passthrough working on Windows 10The VNC connection was used to setup the virtual machine, which worked fine (installed the virtio display driver). When switching the VM to display through the video card, after the setup through VNC, the UNRAID login command line interface disappears and the screen turns black. Nothing happens after that. What's interesting is that when I use the GPU passthrough with a Ubuntu 18.10 server VM, the command line appears for that VM on the screen. Heard trying to switch from QEMU to SeaBIOS could work. However, the option to switch the BIOS is greyed out. Solved: Turns out that the VirtIO driver hates the GPU, so rolling back the driver to the windows basic display driver through the VNC connection fixed the problem. Edited January 11, 20197 yr by avlec
January 12, 20197 yr Sounds like you need to watch some videos from Space Invader, they helped me a lot... He has some other updated videos after this one if it doesn't fully solve your issue... Some key points though, change you VM machine type from the default that UnRaid gives (i440fx) and change it to Q35... If you can reinstall the VM with that, that is best, but if you have to keep your current VM than make sure to do some backups, then create a new VM but point it at the old image file (Don't skip the backups)... If you have an nVidia card that you are trying to passthrough, you will also need a video BIOS file for/from your card... The videos will help with that...
May 14, 20215 yr I recently ran into the same problem when I newly installed my GPU drivers, it turned out that when the drivers kicked in, my main monitor was no longer my main monitor so I only got a black screen on VNC (Windows login screen on the other monitor), I solved this by either configuring RDP / Splashtop beforehand.
December 5, 20214 yr On 1/11/2019 at 2:00 PM, avlec said: Solved: Turns out that the VirtIO driver hates the GPU, so rolling back the driver to the windows basic display driver through the VNC connection fixed the problem. Thank you for saving me from killing myself. I've been trying for 4 days to get this working correctly, and it was the VirtIO driver I installed during VM creation.
January 30, 20242 yr Sorry for the stupid question. I am fighting with the black screen. How do you "roll back the driver to the windows basic display driver"?
January 9, 20251 yr I have a similar issue. I have set up the Windows 11 VM. The initial Windows VM installation starts and every time it reboots the screen goes blank in the noVNC window. I'm past the initial setup installation, this happen when the windows installer runs. If I forcestop/start the VM, the display is back on, but the windows install starts from scratch. What am I doing wrong? I've shared VM setting screenshot. Any help is much appreciated.
January 9, 20251 yr Author This thread is marked as SOLVED so no one will respond. If you're having issues please open a new thread OR look for threads that are more specific to your problem. I haven't used the VNC connection in 2 years since I setup my VM.
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