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Linux Mint 15 Cinnamon 64bit on Radeon HD7770 with latest amd drivers. Catalyst recognize only one display. On second written "unknown device".

Help me configure it please. On windows it works fine....

This is xrandr output:

"Screen 0: minimum 320 x 200, current 3280 x 1050, maximum 3280 x 1680
DFP1 disconnected (normal left inverted right x axis y axis)
DFP2 disconnected (normal left inverted right x axis y axis)
DFP3 disconnected (normal left inverted right x axis y axis)
DFP4 disconnected (normal left inverted right x axis y axis)
DFP5 disconnected (normal left inverted right x axis y axis)
DFP6 disconnected (normal left inverted right x axis y axis)
DFP7 disconnected (normal left inverted right x axis y axis)
DFP8 disconnected (normal left inverted right x axis y axis)
DFP9 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 473mm x 296mm
   1680x1050      60.0*+
   1400x1050      60.0  
   1280x1024      75.0     60.0  
   1440x900       75.0     59.9  
   1280x960       60.0  
   1280x800       60.0  
   1152x864       60.0     75.0  
   1280x768       60.0  
   1280x720       60.0  
   1024x768       75.0     70.1     60.0  
   800x600        72.2     75.0     60.3     56.2  
   640x480        75.0     72.8     67.0     59.9  
DFP10 disconnected (normal left inverted right x axis y axis)
CRT1 connected 1600x900+1680+150 (normal left inverted right x axis y axis) 0mm x 0mm
   1600x1200      60.0 +
   1400x1050      60.0  
   1600x900       60.0* 
   1280x1024      60.0  
   1440x900       59.9  
   1280x960       60.0  
   1366x768       59.8  
   1360x768       60.0  
   1280x800       59.8  
   1152x864       60.0  
   1280x768       59.9  
   1280x720       60.0  
   1024x768       60.0  
   800x600        60.3  
   720x480        60.0  
   640x480        59.9  "
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