I am on
I have been unable to successfully configure,
I want GRUB to display on my HDMI monitor but it only displays on my laptop inbuilt eDP display.
First of all I want to clear something This issue has nothing to do with your graphics card It is all about the resolution of your displays (Either the laptop or the external display) For Example - If your laptop screen is set 1360x768 but your external display is 1600x900 In order to show the grub menu or the BIOS of your laptop on the external display simply set the external display's resolution to match the laptop's display resolution. don't forget to disable the laptop display before a reboot This worked for me