@andriy.sultanov I finally got around to fixing my capture card and I gotta say, it's a real pain to be using both methods and doesn't feel "correct" especially when there are warnings about possibly losing dom0 configurations after updates and the knowledge base saying that the old hide PCI from dom0 method is now considered obsolete.
Perhaps the best solution would just be to provide users with a CLI command that would add that particular device to the xl pci-assignable-list if it doesn't fall into classes 01XX, 02XX or 03XX.
Because I had added my GPU to my VM using the webUI, but then I also wanted to add the capture card through the console, but it appears that in the end you basically need to undo what's been done in the webUI and do it all through the console, otherwise you'd add the capture card manually with command line and then that would remove the GPUs...
So I think some sort of manual override is necessary, even if it's a CLI option and then once that's done we could go into the webUI to enable it once the device has been marked as safe to passthrough.
