December 23, 2025Dec 23 Hi All,I've been running Unraid for a couple of years now with GPU passthrough configured on my Windows 10 VMs and everything is working perfectly there. Recently, I rebuilt my Ubuntu VM and ran into a strange issue with GPU passthrough...The passthrough works fine during the initial ISO installation and immediately after a fresh install (I made a backup of the vdisk at this stage). However, as soon as I shutdown the VM after using or run any OS updates through the GUI, the passthrough stops working. I can reset by restoring from the backup, but this isn't ideal.Has anyone experienced this before? Are there specific settings or configurations I should be looking at for Ubuntu VMs with GPU passthrough? I don't think this is a Unraid setup issue as it does work initially, and my other VMs are configured the same way and also work fine.Thanks in advance!
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