undefined | Better HN

0 pointsspintin2y ago0 comments

I recently discovered you cannot pass 75Hz over DVI -> HDMI -> DVI!

For some reason the bandwidth is too low?

So for 60Hz there is interop. but for 75Hz you need a thick DVI cable.

0 comments

HDMI currently supports up to 144Hz. Even HDMI 1.4 (2009) could reach 120Hz.

However, compatibility is hit and miss in general. You may have had luck replacing one or more cables or adapters, but switching to displayport is likely to get the best results, anyway.

ffsm82y ago

HDMI supports >200hz if you've got compatible hardware (HDMI 2.1).

It's admittedly hard to get this hardware unless you're willing to pay for the top of the line versions, but it does exist.

Budget hardware usually works better with display port however, that's true

geraldhh2y ago

jep, bw limit of the digital channel.

had that same issue with a 1920x1200@60 display on old hdmi connection and with a 1920x1080@60 tv on dvi-hdmi.

lowering the refreshrate slightly (59.9 Hz) made it work

oynqr2y ago

HDMI can only carry single link DVI as far as I recall.

j / k navigate · click thread line to collapse