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Hey, just wanted to thank you for your reply and the idea what to try. I have just taken some time to investigate this further, and yes a Linux guest machine works just fine. When I unplug and re-plug the Unifying Receiver, the mouse resumes working after a few seconds. So it looks like a...

OK, good to know! 

Yes, it is plugged into a USB Hub. But if i remove the receiver i get these errors, and then when I plug it back, the mouse no longer works until I restart the VM.

shrdlicka, can you rephrase your possible solution? I don't understand where I could attempt to plug it in.

If I disconnect and reconnect the Logitech Unifying Receiver (usb-passthru to a Windows VM) it no longer works, I have to restart the VM to get it working again. The USB passthru is per-port (from config file: usb0: host=3-1.1.1,usb3=1) When disconnecting the USB receiver dongle, the host...

Thanks all, I just found the time to continue tinkering with this. At the time, I've just transfered the VMs by backing them up, then restoring them on the new installation (as it should be done). Yes, it wasn't mounted. That's all there is to it basically. But i'm a bit curious why the new...

I'm upgrading my SSD, most of the VM images are on a secondary SSD, but the new installation of Proxmox doesn't show any files. Old SSD was a 256GB with Proxmox 7.0 installed. The secondary SSD that holds all VM virtual disk images is a 512GB, with one partition, added as a Directory. (mounted...

Thanks! I found the problem in the bios setting, but learning that command and knowing that there's someone to help, sure did help a lot! I assumed that adding the second GPU immediately adjusts the PCIE lanes to enable both devices. There was a setting in the GPU called "PCIE6/PCIE4 Link...

I am already using Proxmox 7 with a Windows VM which has a GPU passed through, so I'm successfully using it as a workstation. I'd like to add another such VM, then switch the monitors input between the two - basically having 2 computers in one machine. But I have a problem: when I add the...

OK, since it was a new VM i just deleted it and created a new one from scratch, with UEFI, and it all works now. Typing this while looking at a screen, connected to a GPU, that's passed thru to the VM (along with USB devices). Thank you for your help!

Thanks for replying, I think that part is working now.. I got stuck in a loop between troubleshooting and bios options, and my main criteria was that this DMAR text would show up, hence why i thought it wasn't working. The VM boots up now, and the monitor shows the display, but i'm not quite in...

I've followed a youtube video, didn't work, and as I followed the wiki instructions slowly step by step I realized that the problem is that there's no DMAR-IOMMU output in dmesg. If i try "dmesg | grep -i dmar" there's no output If i try "dmesg | grep IOMMU" there's this output: [ 1.059328]...