I'm with fresh install of 12.04, having gma x3100 as a video card. The problem is I own 19" monitor with native resolution of 1280x1024 but can't force screen resolution on more then 1024x768

~$ xrandr
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
VGA1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768       60.0* 
   800x600        60.3     56.2  
   848x480        60.0  
   640x480        59.9  

I been digging up some info for the past 2 days, yet haven't found any solution. Even tried using gdm instead of lightdm.

Any help is appreciated.