I use an LG Electronics 34" monitor, but the resolution is set by default to 1920x1080. I can set to 2560x1080 by adding the following lines in my .profile.
xrandr --newmode "2560x1080_60.00" 230.76 2560 2728 3000 3440 1080 1081 1084 1118 -HSync +Vsync >/dev/null 2>1
xrandr --addmode HDMI-1 2560x1080_60.00>/dev/null 2>1
xrandr --output HDMI-1 --mode 2560x1080_60.00 >/dev/null 2>1
I want to set the login screen resolution to 2560x1080.
