force proxmox to use integrated graphics instead of dedicated card

Sep 1, 2025
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hello!

I'm currently in the process of setting up my old Dell PC with proxmox. One issue I ran into is that I can only enter the bios and boot menu on my dedicated gpu, not the integrated one. Later on, I'd like to passthrough the dedicated gpu into a vm, and use the integrated gpu for proxmox. Will I be able to change which GPU proxmox uses later after installing using my dedicated one? Dell seems to force using the dedicated gpu for bios and other system level things, so I'm worried that it won't let me use proxmox on integrated graphics after installing later on. There isn't a setting in the bios to change which card it uses either.

Thank you!
 
Hello

Depening on the hardware you can force the hardware to use the integrated gpu but most of the hardware are like this:

See GPU use GPU, with no option to turn it off. that is becouse most Hardware will think oh i will use it for myself as VMs etc are software.
 
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I expecially bought a Gigabyte motherboard to be able to select which GPU (from which PCIe slot) is used for boot/Proxmox. Most motherboard don't allow you to select it unfortunately. Maybe they do have an option to keep the integrated graphics enabled when a GPU is present and maybe you can select the integrated graphics as primary for boot. If all else fails, you can make Proxmox go headless and hope that the GPU resets properly and can still be used by a VM.
 
Hmm, so I just got proxmox setup without the dedicated gpu (integrated one only), can I just unplug the hdmi cable, and reinstall the dedicated gpu and then pass that through to a vm?
 
PCI(e) passthrouygh if always trial and error and is never guaranteed to work. Adding (or removing or enabling or disabling) PCI(e) devices can also change the PCI ID of other devices (after it in the sequence), which can break your network configuration. The network configuration can easily be fixed via the Proxmox host console (but you will need a working display). Or change it to a stable name before changing PCI(e) devices.
 
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