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I realize there are several questions that look very much like this one, but none of their accepted solutions work.

For example, I can set the refresh rate to 144hz using xrandr, but the obvious issue is that the change is reverted on reboot. I have added it to a startup script, but even then the changes are reverted any time my PC wakes up from suspend, or even when my monitor goes to sleep (dpms)

I have tried setting and saving the refresh rate using nvidia-settings, which successfully modifies xorg.conf:

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "Stereo" "0"
    Option         "nvidiaXineramaInfoOrder" "DFP-4"
    Option         "metamodes" "2560x1440_144 +0+0"
    Option         "SLI" "Off"
    Option         "MultiGPU" "Off"
    Option         "BaseMosaic" "off"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Then rebooted, but Gnome 3 either doesn't care about that, or overrides the refresh rate to 60hz. Also gdm (the Display Manager) sets the refresh rate to 60.

I have also seen some people suggest changing the frame rate to 144 in $HOME/.config/monitors.xml. The file contained information about all the monitors I've ever plugged into my PC, so the first thing I did was delete it and reboot. After applying a setting in "Displays" the file was recreated with one monitor configured at the frame rate 59.95. I changed the frame rate to 143.96 (I got the number from xrandr), saved the file and rebooted. Both gdm and Gnome 3 ignores it and keeps setting my monitor to 60hz.

In the end I have found no way of setting my monitor's refresh rate to 144hz in a stable and acceptable manner when using Gnome 3. Can it even be done?

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