I just installed Ubuntu 12.04 (upgrade from 11.10) and when I change monitor refresh rate everything is ok, until reboot, on reboot my refresh rate revert to 60 Hz. I found similar threads on Ask Ubuntu but answers are not good for me. Is there any way for making a script which change refresh rate using Nvidia settings, or can you help me to fix this using xrandr. Refresh rate should be 85 and resolution 1280x960. Plz help.
You should be able to set this for good in your xorg.conf file
/etc/X11/xorg.conf. Here is my Monitor section as an example:
Section "Monitor" Identifier "0-DFP1" Option "VendorName" "ATI Proprietary Driver" Option "ModelName" "Generic Autodetecting Monitor" Option "DPMS" "true" Option "PreferredMode" "1440x900" Option "TargetRefresh" "61" Option "Position" "0 0" Option "Rotate" "normal" Option "Disable" "false" EndSection
You mentioned Nvidia, so I assume that is your graphics card. Are you using the proprietary drivers? I'm sure you have, but just in case: have you used the Nvidia Settings tool to set your display parameters?
I have recently had it recommended to use this ppa on 12.04 to get the latest and greatest drivers, seems to be working well on both my Nvidia and ATI based systems.
$ sudo add-apt-repository ppa:ubuntu-x-swat/x-updates $ sudo apt-get update && sudo apt-get upgrade