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URL:
https://askubuntu.com/q/1202340
Title:
Refresh rate of 60 not available for 4K resolution
ID:
/2020/01/11/Refresh-rate-of-60-not-available-for-4K-resolution
Created:
January 11, 2020
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September 15, 2024
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I had the exact same problem with my 4K TV. The solution was to generate a 3840x2160 resolution with a 54 Hz refresh rate:
To summarize I used:
cvt 3840 2160 54
Then take the output from above and pass it to below:
xrandr --newmode "3840x2160_54.00" 637.50 3840 4152 4568 5296 2160 2163 2168 2230 -hsync +vsync
Finally set the monitor to the new resolution - refresh rate:
xrandr --addmode DP-1-1 3840x2160_54.00
The difference between 30 Hz and 54 Hz is night and day. At 30 Hz colors are washed out and causes eye strain.