I want my system to run with 1366x768 resolution. Note that this resolution is not detected by the open source driver. So I created a bash script as follows :-
xrandr --newmode "1368x768_60.00" 85.25 1368 1440 1576 1784 768 771 781 798 -hsync +vsync xrandr --addmode DVI-0 1368x768_60.00
xrandr --output DisplayPort-0 --off --output DVI-0 --mode 1368x768_60.00 --pos 0x0 --rotate normal --output HDMI-0 --off
and saved it as lightdmxrandr.sh in /usr/bin and also made it executable. In /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf , I added these lines:-
Now I saved the file and rebooted my PC. My login screen had 1366x768 resolution. So I happily typed in my password and pressed return. But when my desktop starts I dont have 1366x768 resloution! I tried running the script above at runlevel. That didnt work. Infact even the login screen's resolution did'nt change! So I need to know what must be done to make that script run just before the desktop session begins. Thanks in advance.
PS:- I have an ATI radeon 5570 HD graphic card. I am using the AMD REDWOOD open source drivers. I know that I can get the 1368x768 resolution with a AMD proprietary driver from the AMD website. But I prefer to use the Open source drivers. If you have patience, read this question too. The above question was born out of problems arose by that question. Also note that I am using Ubuntu 14.04 but this question is not too '14.04 specific'.