HDMI not working @ 1440p on Acer xb271hu.

fr0sty · 28 Mar 2017 at 16:25

This monitor has two ports, an HDMI and a Display port. Ive 2 computers at my desk. One for games (using the display port) and the other for work which im trying to use the HDMI on.

I get a picture on HDMI but its 1920x1080 and any higher resolution is not available. Also its at 60hz and again any higher is not a option.

The PC in question has a GTX210 fanless graphics card installed. Ive bought a new 1.4 HDMI cable but to no avail. Its actually really doing my head in this problem

I would have thought it world work ok in this day and age without any tinkering but it seems I was wrong. Oh well, it mght be something simple

DragonQ · 28 Mar 2017 at 16:44

You'd need HDMI 1.4 to get 2560x1440 @ 60 Hz but the monitor and GPU would need to have an HDMI 1.4+ port. Dual-Link DVI can manage 2560x1440 @ 90 Hz (100-120 Hz might be possible with hacks depending on hardware). For 2560x1440 @ 144 Hz you need DisplayPort or HDMI 2.0 (I think).

fr0sty · 29 Mar 2017 at 01:01

Mmm maybe the gtx210 doesn't have hdmi 1.4. I've looked online but can't find out the version it has so far. I'll have a look again tomorrow

EDIT. I think it's 1.3a

DragonQ · 29 Mar 2017 at 10:57

This page suggests it has a DisplayPort output and can handle 2560x1600 @ 60 Hz, but you said yours is fanless so it might not be the same one.

fr0sty · 29 Mar 2017 at 12:26

Ok I got it working now. I took out the 210 and put in a gtx770 and it worked after installing the drivers.

Thanks a lot Dragon, you really helped me out here. The PC in question is 100% silent and i was worried the 770 would maybe be audible but its not!! Hooray! Thanks!