Originally Posted by MrSnowmobiling
Your laptop probably isn't HDMI 2.0. I run this with display port but I have tested it over HDMI and you can achieve 3440x1440 at 60Hz ONLY with HDMI 2.0 spec. My guess is your laptop is HDMI 1.3 or 1.4
If not, check the display adapter properties in Windows and see if you can select the 60Hz option.
Separate user, but this comment piques my interest. My laptop has HDMI 1.4, Mini Display Port 1.2, and USB Type-C (Thunderbolt). I'm planning on buying two of these monitors (and probably using the Display Port, and USB Type-C). However, does HDMI 1.4 really not do this monitor's resolution at 60Hz?
The spec says 4096×2160 at 24 Hz or 3840×2160 (Ultra HD) at 24 Hz/25 Hz/30 Hz.
But this monitor isn't as wide or tall in terms of resolution.
But then this mentions HDMI 1.4 doesn't even "support" 21:9 aspect ratio. Is that true? https://en.wikipedia.org/wiki/HDMI#Version_comparison
Supposedly it can do 2560x1440 at 144Hz, so I don't see why it couldn't push 3440x1440 at 60Hz.