OK computer nerds. Why isn't my old display working with new motherboard?

Using the HDMI 1.4b output on motherboard. Integrated Intel Graphics

Display is an old Samsung Syncmaster. Works fine when hooked up to another computer via HDMI. HDMI cable also works fine between the old Samsung and another computer.

New motherboard HDMI 1.4b output works fine when hooked up to another (newer) Samsung display.

Maybe it has something to do with different variants of HDMI, but I'd assume that all variants are backward compatible.

Posted: 01/28/2021 at 12:52PM

OK computer nerds. Why isn't my old display working with new motherboard? -- Hokie360 01/28/2021 12:52PM

There are a lots of HDMI varients. Also the default resolution of the MB, -- UTPr0sim 01/28/2021 6:44PM

Have you tried it with your video card? ** -- EDGEMAN 01/28/2021 4:52PM

Not yet. Adding components individually to understand when problems -- Hokie360 01/28/2021 5:02PM

I would go ahead and plug it in now -- EDGEMAN 01/28/2021 5:33PM

Hedge fund elites? Reddit flash mobbers? ** -- Beerman 01/28/2021 2:39PM

Wrong vanilla ice cream for his root beer float. Figures. ** -- PhotoHokieNC 01/28/2021 3:54PM

Russian hacking. ** -- vthhhi 01/28/2021 2:17PM

Flux capacitor needs replacin' ** -- LonghornHokie 01/28/2021 1:24PM

Just for giggles, does mobo have VGA, DVI or other output to try? ** -- FfxStationHokie 01/28/2021 1:10PM

Also has Display Port, but I don't have the cable. :-( ** -- Hokie360 01/28/2021 1:15PM

Do you have the right drivers for the motherboard displays? ** -- hoosnowahokie 01/28/2021 12:59PM

That's a possibility, but it's an older monitor and I figured the Intel -- Hokie360 01/28/2021 1:35PM

but still should show BIOS/UEFI startup? ** -- FfxStationHokie 01/28/2021 1:16PM

Mobo has a Q-code display, and IIRC, it flashed a d6 during startup -- Hokie360 01/28/2021 1:37PM

OK computer nerds. Why isn't my old display working with new motherboard?

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