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New 4k monitor only 4k on DP, not HDMI
I have this Optiplex 3080 Micro, and a couple 4k monitors that I got recently. The Optiplex 3080 Micro has the Intel 630 Video and should do 4k over both display port, and HDMI.
I can only get it to do 4k resolution (3840x2160) over the DisplayPort, but not the HDMI. On HDMI, I can only get 2k resolution (2560x1440) I have heard that it's probably the HDMI cable, but... 1) it's the HDMI cable the monitor came with. 2) just to make sure, I got a new HDMI cable that is definitely 4k certified, and that did not change the situation. Help! I want it to do 4k over HDMI. This computer doesn't have 2 display ports.
redxps630
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April 27th, 2024 22:13
3080MFF has HDMI 1.4
You won't be able to achieve 4k at 60hz unless you use HDMI 2.0
dukeofurl01
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April 28th, 2024 05:49
That's where #2 comes in, I believe the cable it came with must be 2.0 but just in case, the one I got is 2.1
and it still doesn't work.
redxps630
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April 29th, 2024 01:03
the port is only able to support 1.4. so no matter what high speed cable you connect to, it gets downgrade to 1.4 spec.
dukeofurl01
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April 30th, 2024 02:24
@redxps630 Hmm, I think I understand now.