External GPU turns off iGPU Z690

[xlucero1]

Hello, I am trying to turn “Primary Display” to ‘CPU Graphics’, instead of ‘Auto’. 
The bios setting keeps reverting back to “Auto” immediately after saving & rebooting. 

 

Goal is so I can enable SR-IOV and pass-through iGPU to a vm headless and have another vm using the external Gpu. 

It seems the Asus ROG STRIX Z690-E Gaming may have a quirk as said here in his first bullet point. 

Is that Reddit solution possibly the only way to go about resolving this? Is this mobo being more difficult than it should be? 
 

ps here is the manual

Thank you for any input.

[SimonF]

6 minutes ago, xlucero1 said:

Hello, I am trying to turn “Primary Display” to ‘CPU Graphics’, instead of ‘Auto’. 
The bios setting keeps reverting back to “Auto” immediately after saving & rebooting. 

 

Goal is so I can enable SR-IOV and pass-through iGPU to a vm headless and have another vm using the external Gpu. 

It seems the Asus ROG STRIX Z690-E Gaming may have a quirk as said here in his first bullet point. 

Is that Reddit solution possibly the only way to go about resolving this? Is this mobo being more difficult than it should be? 
 

ps here is the manual

Thank you for any input.

Did you enable multi-monitor also?

 

[JackieWu]

You mean you can't use IGD and external GPU at the same time? 

 

My friend once had the same problem, but fortunately it was solved by replacing the BIOS firmware as instructed by an ASUS after-sales technical engineer.

 

His motherboard is TUF-GAMING-B660M-PLUS-WIFI-D4.

 

Edited September 26, 2023 by JackieWu

[xlucero1]

On 9/26/2023 at 12:27 AM, SimonF said:

Did you enable multi-monitor also?

Hey what’s up! You rock btw thanks for all your help you provide in these forums!
I did enable that option and it didn’t work; i don’t think Unraid turned on, so that was not an option. Same with CSM. 
The solution was actually plugging in a Dummy plug into the mobo hdmi port 🤯 as mentioned here then the option actually defaulted to that in the bios and saved like I was hoping. 
Thanks man I hope you have a good day! 

 

On 9/26/2023 at 7:19 AM, JackieWu said:

You mean you can't use IGD and external GPU at the same time? 

I guess other mobos you can just turn it on and it works; but ya like you said maybe an Asus thing, but luckily this trick worked!