That I need a second GPU in order to game on Qubes
These threads also talk about “GPU passthrough”
What is “GPU passthrough”, and how much technical knowledge will I need to do this?
Is my primary graphics card needed for non-gaming computing? My current card worked for Windows gaming, even on modern games, so if I can keep using it, I happily will
End goal:
Discord on one qube (accomplished)
Video site on another qubes (doable)
Game wiki on a third qube (doable)
Game itself on a fourth qube (subject of this thread)
There are multiple GPU virtualization methods out there, but on this forum people mostly refer to the fixed pass-through when they say “GPU passthrough”. As far as I understand it, it allows the guest system to read from and write to a chunk of memory that corresponds to your graphics card (by remapping it using I/O MMU)
You don’t need much technical knowledge to start, but troubleshooting X can be tricky, assuming you want full desktop of course. Also troubleshooting in general might demand some cli knowledge since the guests system most likely doesn’t have a graphical output if you’re troubleshooting at all.
Attaching your only graphics card to a qube will leave your dom0 with no graphical output. You won’t be able to do anything, including using windows from other qubes, because desktop environment and window manager are in dom0.
That said, you don’t need a powerful GPU in dom0, any graphical processor with an output will do, including one often built into the CPU.
