Looks like your hardware is not able to get so high rate (see the xrand output). Its not because you set a modeline higher that your hardware will follow. Each piece of hardware need to be able to support such rate (cpu/gpu/ram/screen/cord/port)
http://www.overclock.net/t/1358464/does-amd-support-144hz ** Changed in: xorg (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1621168 Title: Cannot Change Refresh Rate to 144Hz in Ubuntu 16.04 - “Configure crtc 0 failed” (Intel Graphics) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1621168/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
