Kubuntu 20.04 does not detect the correct resolution.

[Modularity]

I am on Kubuntu 20.04..My monitor supports 2k@144hz ... but the maximum resolution I can set through Kubuntu is 1080p@60hz ... How can I get the max resolution ?

[oshunluvr]

Open a terminal and enter:

xrandr

The output will show us what resolutions are being supported. If you desire help with the issue, you need to supply enough information for someone else to help. Along with the results of xrandr, post the monitor and video card models at least. Just because your monitor supports a resolution doesn't mean everything else does.

[Modularity]

Here is the output of xrandr: https://pastebin.com/djfBTNfY
here is the link to my monitor: https://www.dell.com/support/home/en...g-monitor/docs

[claydoh]

Don't forget to check the cable. Not all HDMI cables support higher than 1080.

Video card info would help here as well.

Sent from my LM-V600 using Tapatalk

[Modularity]

I am using an Intel iGPU: Intel HD Graphics 4600

When my laptop was connected to my monitor through a HDMI to HDMI cable, I was able to get 2k@144hz...But then I bought a dock :https://www.amazon.ca/gp/product/B07...?ie=UTF8&psc=1

This dock has a display port on it so I used a DP to HDMI cable to connect the dock to the monitor: https://www.amazon.ca/gp/product/B01...e?ie=UTF8&th=1

After this change, I am not able to set 2k@144hz res...

[Modularity]

I guess it is the cable...I will try a different cable at another time...

[claydoh]

This dock has a display port on it so I used a DP to HDMI cable to connect the dock to the monitor: https://www.amazon.ca/gp/product/B01...e?ie=UTF8&th=1

After this change, I am not able to set 2k@144hz res...

The cable is the bottleneck:

[oshunluvr]

If the dock has DP, why not use DP? I had to drop my DP connection because my nVidia card failed and using HDMI on the Intel 530 (i7 built-in) I can only get 30hz at QHD+ (3840x1600) even though the monitor supports 75hz