I'm using an Nvidia RTX 4070TI, with an AMD 7800X3D. Got bazzite running amazing on my framework 13, figured I would take the plunge and try to side load it on a secondary drive on my desktop. Had issue with blank screen once Bazzite was loaded onto the SSD. I eventually found out its because I had to plug my DisplayPort into one of the ports on the motherboard itself, as it seemingly wasn't detecting the GPU at all.
I'm working with the Nvidia KDE version of bazzite without the SteamOS game mode. So far, I've "Disabled" secure boot (This Asus board doesn't actually have a setting to turn it off, only toggle it to "Other". Which other posts have said is the same thing as toggling it off).
The install is running, but for some reason its trying to run only on the integrated graphics, it won't touch the Nvidia GPU at all. Most research I've done is leaning towards it being some type of Secure boot issue which is preventing the Nvidia Drivers from properly starting.
Not sure whatelse to do. I appreciate any help!
Things I've attempted: Disabling Secure Boot, Deleting Security Keys, Registering MOK keys (Followed directions from Bazzite Documentation, had no errors on keys), Updated Bazzite.
Update: When I do fast fetch, it can see the GPU, but it says [Discrete]
Update 2: Solution to issue was updating BIOS. BIOS was 3 years outdated. Thank you for the help, Biebel!