MSI Splash screen not showing with 4K?

[Guest]

I have an MSI B450M Mortar Titanium board and I noticed that when I start up my computer, the "Arsenal Gaming" splash screen doesn't show. It's just a black screen before the Windows 10 splash screen shows up. I've been using a BenQ 27" 4K monitor.

 

I thought maybe there was no splash screen with this mobo until I hooked up a 1080p gaming monitor (also BenQ). Now I see the splash screen when I start up. Why does it display with my 1080p monitor but not with my 4K monitor? (Both were hooked up via Display Port and my ASRock RX 570 graphics card). 

 

I know this isn't the biggest issue, but I'm just curious. 

[Mira Yurizaki]

POST splash screens going through video cards often don't run at the monitor's native resolution, but something else. So it may just be the display getting a resolution or other setting that it's not happy with.

[Guest]

Thanks. Interestingly the splash screen does display when I use HDMI (I was using DP). 

 

Weird. But glad I can see it now. I don't have any preference between DP and HDMI. Both seem to work fine, so I'm just gonna use HDMI from now on