Question In BIOS, switchable graphics options, there’s mo options but “muxless” what to do? (PC not a laptop)

Jul 30, 2019
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I’ve had this problem that I couldn’t get any display from my dGPU so I hoped into the BIOS to change the SB settings, but no options was there but the muxless.
I’ve read about it, but couldn’t understand what it does but the only thing I understood that I can plug the dGPU into mobo, put the display on the iGPU and I’d get to use my dGPU. Is that right? Is there any setting in the bios to unlock more options in the SB menu?
 
Are you sure you have a DESKTOP PC, and not a Laptop ? If it's a LAPTOP, then kindly provide the exact MODEL number and brand.

Hybrid Graphics theory for reference::
  • MUX-ed: Displays are only connected to the iGPU or dGPU.
  • MUX-less: Displays are always connected to iGPU; the iGPU uses the display engine of the dGPU solely for rendering, not displaying. In theory, the two GPUs act as one.