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I tried Every solution on AsKuBunTu. The reason why I am asking the question is : No answer solved my issue.

I started Ubuntu which causes eye strain(same time spent on Win-7 never caused eye strain).

As per answer topped on google search like Here, Here and many more places but no answer worked.

As per Experts here , they said following should work xrandr -s 1366x768 -r 75 , but it gives me message Rate 75.0 Hz not available for this size .

Also some Expert also gave answer like This which obviously not working .He says use Compiz using sudo apt-get install compizconfig-settings-manager . It sets the refresh rate , but after I reboot , all is gone and set to 60Hz , I dont know was that refresh rate in Compiz just for our satisfaction or what ?

And now please answer genuinely , dont answer like use Redshift , flux , as it Does Not solve the issue , I dont like my screen in Red color.

My Os: Ubuntu 14.04 Trusty Tahar.

Please answer if you know , I really dont want my eyes dried , tired , stressed anymore on Ubuntu.

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Pratik Joshi
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1 Answers1

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You did not read the links I gave you nor did you post sufficient information for me to answer.

I can take a guess.

You have to manually add a mod line and you will have to modify this answer to match your hardware / xrandr output.

Run cvt

cvt 1366 768 75.0

notice how the desired refresh rate is added to your resolution ;)

output will look like this:

# 1368x768 74.90 Hz (CVT) hsync: 60.30 kHz; pclk: 109.50 MHz
Modeline "1368x768_75.00"  109.50  1368 1448 1592 1816  768 771 781 805 -hsync +vsync

Add it to xrandr (without the "Modline" part)

xrandr --newmode "1368x768_75.00"  109.50  1368 1448 1592 1816  768 771 781 805 -hsync +vsync

Now here is where you did not post sufficient information, so I can not write an answer.

The output of xrandr shows your display name, mine shows

eDP connected 1366x768+0+0

so mine is eDP. Yours may be VGA-0 or LVDS or ....

run xrandr with your display name

xrandr --addmode eDP 1366x768_75.00

NOW run xranrd to set your desired resolution

    xrandr --output eDP --mode 1366x768_75.00

If you have a problem post the output of xrandr and the commands I gave you exactly as you enter them and any error messages.

Don't forget to ask nice because I am a volunteer.

Panther
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