I can't seem to get this new 4k monitor to not lag.

Here's what I got:

  • Acer Aspire 5 A515-51 (basically a standard laptop with standard Intel HD graphics)
  • LG 27UD58 4k monitor

  • I am running eOS


With this command:

$ xrandr -q

...I get a list that shows that the highest resolution (3840x2860) is only capable of 30hz.

On Tom's Guide (http://www.tomsguide.com/answers/id-3531514/laptop-output-60hz.html), jaguarskx said:

Any modern laptop with an integrated Intel HD graphics core should be able to output 4k video at 60Hz as long as the laptop has a HDMI 2.0 port. If the laptop only has a HDMI 1.4 port, then video would be limited to 30Hz.

My laptop has all of the above.

I used this command with no luck:

xrandr --output HDMI1 --rate 60

What commands could I use to enable 60hz at the max resolution?

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