You can try holding Fn and pressing whatever key along the F keys on that system's keyboard has an icon of a display. If that doesn't work, some systems will only send a signal to the external display during "pre-boot" (BIOS, onboard diagnostics, etc.) if the laptop lid is closed from the moment the system is powered on. That typically is only achievable with systems that support docking stations that include a Power button to control the system, because otherwise you have to open the lid to press the Power button to turn the system on, and at that point the lid is open when the system powers on. And some systems don't display pre-boot video on external displays at all.
I use my laptop essentially as a tower with the lid closed and a bunch of peripherals plugged into it as well, and I simply open the lid when I need to see something like the BIOS interface. How often do you need to do that anyway?
My laptop is Dell Inspiron 15R 5521, maybe this can help, you just enable booting via legacy, on my laptop it can display Bios on the External Monitor, after a few seconds on the Main Monitor BIOS display, it will immediately switch to the External Monitor, I use HDMI and it should if using VGA it will be the same..
jphughan
9 Legend
•
14K Posts
1
January 8th, 2020 13:00
You can try holding Fn and pressing whatever key along the F keys on that system's keyboard has an icon of a display. If that doesn't work, some systems will only send a signal to the external display during "pre-boot" (BIOS, onboard diagnostics, etc.) if the laptop lid is closed from the moment the system is powered on. That typically is only achievable with systems that support docking stations that include a Power button to control the system, because otherwise you have to open the lid to press the Power button to turn the system on, and at that point the lid is open when the system powers on. And some systems don't display pre-boot video on external displays at all.
I use my laptop essentially as a tower with the lid closed and a bunch of peripherals plugged into it as well, and I simply open the lid when I need to see something like the BIOS interface. How often do you need to do that anyway?
Abhishek_Tiwari
1 Message
0
July 10th, 2022 05:00
Extremely Thanks .. my problem solved अत्यंत धन्यवाद
RidwanGreen
3 Posts
0
February 9th, 2023 15:00
My laptop is Dell Inspiron 15R 5521, maybe this can help, you just enable booting via legacy, on my laptop it can display Bios on the External Monitor, after a few seconds on the Main Monitor BIOS display, it will immediately switch to the External Monitor, I use HDMI and it should if using VGA it will be the same..