Can't see boot screen (and therefore access BIOS) with certain monitor

[noesmoking]

When I boot with my LG monitor (preferred), there is no output to the monitor until the Windows log-in page. As the PC boots, the LEDs on my motherboard cycle from CPU to DRAM to VGA. It hangs on VGA until I am at the Windows log-in page, and then the VGA light turns off and the log-in page appears. Also, if I try to spam DEL to access the BIOS page even when the screen is still black, I will still end up at the Windows log-in page; I think it's not accepting input from my keyboard until after the VGA light has turned off.

If I try to use my old Vizio TV as the output device, I can access the BIOS page immediately. I have also tried my graphics card on a friend's build and it works just fine. It really is just the monitor that is affecting this situation. I saw a post on Tom's where someone was having the same issue, and they were able to access the BIOS using the same monitor by using a VGA cable instead of the HDMI (which is what I am using). If I can't fix the problem, I will probably just end up using a VGA cable any time I want to access the BIOS (if that actually works for me); however, this is not ideal.

All of the newest drivers for my graphics card and monitor are installed, and I just updated to the newest BIOS (23d), although the problem was presenting even before I updated the BIOS.

This is a new build, and before I had installed Windows, the VGA light would just stay on and there would be no display whatsoever. I was only able to install windows by switching over to my Vizio. Once Windows was installed, I was then able to use my LG monitor (complete with the issue I am describing).

Anybody have any ideas why a certain monitor would not work with a video card or motherboard?

Build:
Ryzen 1300X
Gigabyte AB350-Gaming 3 (rev. 1.0)
V.Skill Ripjaws V 8GB 3600Mhz (x2)
Sapphire Nitro+ RX 580 8GB
LG 24MP59HT-P monitor

Thanks

 

[terry4536]

Check that the monitor is powered. Check that the monitor cable is compatible and connected to the graphics card. Check that any additional PCIE power cables are installed and connected. And finally make sure that the PSU is sufficient for the graphics card.

 

[noesmoking]

Finally got it, and it was such a silly fix: I had to turn on my monitor's FreeSync feature. I was planning on leaving it off until I started gaming and working on my GPU settings (i.e. after finding stable OCs for my CPU and memory), so I never turned it on.

Thanks for the reply

 

[terry4536]

I'm glad you have your system up and running.

 

[/Caleb_]

Just wanted to confirm that this seems to be an issue with the LG 24MP59HT-P specifically. I've had this issue for a very long time and I saw your post, tried the fix, and was able to access the BIOS. Thank you for sharing your fix!