finix@PC-II:/etc/X11$ xrandr 
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 8192 x 8192
DVI-0 connected primary 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  
DIN disconnected (normal left inverted right x axis y axis)
DVI-1 connected (normal left inverted right x axis y axis)
   1920x1080      60.0 +
   1680x1050      60.0  
   1400x1050      60.0  
   1600x900       60.0  
   1280x1024      75.0     60.0  
   1440x900       59.9                                                                     
   1280x800       59.8                                                                     
   1152x864       75.0                                                                     
   1280x720       60.0                                                                    
   1024x768       75.1     60.0  
   832x624        74.6  
   800x600        75.0     60.3     56.2  
   640x480        75.0     60.0  
   720x400        70.1  
finix@PC-II:/etc/X11$ xrandr --output DVI-0 --mode 1280x1024 --pos 0x0 --rotate normal
xrandr: cannot find mode 1280x1024
finix@PC-II:/etc/X11$