Weird Integrated Graphics Issue

wittywilla · October 28, 2022

Update: I have found a solution to my problem. It was a mixture of two things: 1.) The integrated GPU requires DisplayPort for you to see anything in the POST / BIOS, and 2.) I needed to have a windows install ready on a drive with the updated graphics drivers for me to get a display out. Now I have everything working. I'm keeping this post up just in case other people have this problem.

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I have a fairly unique situation going on that I have not found similar posts to online.

Recently, I made a PC build that was built around the idea of using integrated graphics with the G series processors from AMD. I went with a 5600g, and went with a MSI B550-A PRO motherboard.

Here's where my situation gets weird:
I had to do bios flashback before I put the CPU in due to possible incompatibility, and once I was done doing that, the computer would not get any display out to my monitor plugged into the HDMI on the motherboard. There is no dedicated GPU installed, and this was with known good ram, and a known good CPU that was tested in another machine. The PC would power cycle, and get stuck on the BOOT debug LED. (sometimes it would be stuck on VGA on a few power cycles, then end up on BOOT after a while. It was always random)

Initially I thought "Maybe the bios didn't successfully upgrade and the CPU is not detected", well, I was wrong on that too. I brought over my 2080 super from home, plugged it in, and the computer booted into the bios just fine without any problems whatsoever. The latest bios was installed, the CPU & ram were properly detected. I even had integrated graphics options available to me.

So, thinking that this was some good progress made, I set the integrated GPU option to IGD to ensure that it was the default option on boot up, shut down the PC with the settings being saved, removed my GPU, and....

The exact same issue I had before.

Then my next troubleshooting step was this: Maybe the newest BIOS is bad. So, I proceeded to go through the long process of trying EVERY BIOS released for this motherboard with no luck whatsoever.

The last thing I haven't tried is using the Display Port instead of the HDMI on the motherboard, and given the issues I'm seeing right now, I don't think that could be the problem.

I have never seen an issue like this before, and when I try to do research about this online, I see a ton of posts of people wondering why their display out isn't working when the culprit is that they have a dedicated GPU installed. I have built a few other integrated-graphics focused Ryzen Builds in the past and never had this problem. Is this a motherboard problem? Is this a CPU problem? Is this just one of those random chances of getting a mixture of somewhat defective products?

So, I'm here to ask this: Am I missing something?

Edited October 28, 2022 by teknonerdz
Solution found!

KingTdiGGiTTy · October 28, 2022

Does the integrated display out work while you have the dGPU installed?

wittywilla · October 28, 2022

23 minutes ago, KingTdiGGiTTy said:

Does the integrated display out work while you have the dGPU installed?

It does not. That's the confusing part. My monitor always puts out an "unsupported signal" error when plugged into the MOBO HDMI. With the GPU installed, I'm able to get a display on the GPU only.

wittywilla · October 28, 2022

Update: I have found a solution to my problem. It was a mixture of two things: 1.) The integrated GPU requires DisplayPort for you to see anything in the POST / BIOS, and 2.) I needed to have a windows install ready on a drive with the updated graphics drivers for me to get a display out. Now I have everything working. I'm keeping this post up just in case other people have this problem.