Try as i might i could not get lxradr to save the resolution i set across reboots. My one computer is connected to the tv and so it always start out maxed 1920x1080 which is no good for these eyes. After a discussion on another post, Pavroo mentioned setting up a desktop preference file but that didn't work for me.
The reason it didn't work is because there is a a desktop preference file located in /home/user,.config/autostart called:
lxrandr-autostart.desktop
after looking into its contents i found this
[Desktop Entry]
Type=Application
Name=LXRandR autostart
Comment=Start xrandr with settings done in LXRandR
Exec=sh -c 'xrandr --output HDMI1 --mode 1440x900'
OnlyShowIn=LXDE
this file contains an error, the last line says only show in lxde, im using openbox so it wont work. solution...delete that line and save the file.
problem solved
[Desktop Entry]
Type=Application
Name=LXRandR autostart
Comment=Start xrandr with settings done in LXRandR
Exec=sh -c 'xrandr --output HDMI1 --mode 1440x900'
of course when you set your monitor preferences, it will show whatever you saved