Windows not listing discrete graphics card in "Graphics Settings", GPU-z not recognizing it properly.

[Mathragh]

So I'm trying to greenify my PC a bit, and prepare for a future build where ideally I would not have to use the connectors on my discrete graphics card. The assumption is that it would work the same as with my laptop: by default programs run on the integrated GPU, and that's also where all displays are connected to. Some applications however, like games, should run on the discrete GPU. This works fine on my laptop and I don't see why it won't work any differently on my PC.

This works fine, until I restart the PC after the first boot with new drivers installed (or switch the bios). After that it only lists the GPU the main monitor is connected to as both the "Power Saving" and "High Performance", and GPU-z doesn't seem to correctly show the sensor readouts.

Things I've tried up till now is:
Reinstalling drivers (with DDU),
Installing drivers with the discrete GPU disconnected.
disabling ULPS through the registry.

Also see attached images.

I've already written a bug report for Microsoft, as I believe it's probably a windows bug, but I'm also hoping the good people of this forum might have some helpful insight.

 

[dorsetknob]

Some applications however, like games, should run on the discrete GPU. This works fine on my laptop and I don't see why it won't work any differently on my PC.

you seem to want a hybrid graphics solution like some laptops have ?
if your bios does not support this then your get nowhere

 

[Mathragh]

you seem to want a hybrid graphics solution like some laptops have ?
if your bios does not support this then your get nowhere

Do you have some info, or could you point me to some sources with more info about this specific requirement? I'm curious as it does work at first, only bugging out after rebooting.

 

[DeathtoGnomes]

where ideally I would not have to use the connectors on my discrete graphics card.

So you want to use the onboard graphics but not the discrete? That is a setting in the BIOS, there should be a priority setting for this somewhere, I think the tab where you allocate system memory for the APU graphics use.

 

[Mathragh]

So you want to use the onboard graphics but not the discrete? That is a setting in the BIOS, there should be a priority setting for this somewhere, I think the tab where you allocate system memory for the APU graphics use.

Indeed! I've set this to the iGPU. Didn't seem to matter for this issue but I can recheck.
Edit: just to restate: it isn't stuck on one particular GPU, rather, it's stuck on the GPU to which the main monitor (one of three) is connected.