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[Lafa <luis.alves@xxxxxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-video-ati

I have a sutttle box with a ATI RS480.
with the latest Karmic updates using the open source radeon driver the xserver is able to detect my 2 monitors.

output from lspci:
01:05.0 VGA compatible controller: ATI Technologies Inc RS480 [Radeon Xpress 200G Series]

lafa@grey-shuttle:~$ xrandr 
Screen 0: minimum 320 x 200, current 1920 x 1200, maximum 1920 x 1920
VGA-0 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 519mm x 324mm
   1920x1200      60.0*+
   1600x1200      60.0  
   1680x1050      60.0  
   1280x1024      75.0     60.0  
   1152x864       75.0  
   1024x768       75.0     60.0  
   800x600        75.0     60.3  
   640x480        75.0     59.9  
   720x400        70.1  
DVI-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 510mm x 290mm
   1920x1080      60.0*+
   1600x1200      60.0  
   1680x1050      59.9  
   1280x1024      60.0  
   1440x900       59.9  
   1280x960       60.0  
   1280x800       59.9  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
S-video disconnected (normal left inverted right x axis y axis)

the VGA--0 works fine and I can use the Ubuntu tool to change resolutions.
If I disable VGA-0 and enable DVI-0, I can't seem to get any image on the monitor connected to DVI-0.

I tried using the ubuntu Display Preferences tool, but I was not able to
make the DVI-0 connected monitor display any image.

I also tried this on the cmd line
xrandr --output DVI-0 --off
xrandr --output DVI-0 --same-as VGA-0 --mode 1920x1080

but got no results.

only the monitor connect to VGA-0 display any image.

** Affects: xserver-xorg-video-ati (Ubuntu)
     Importance: Undecided
         Status: New

-- 
[RS480] xserver-xorg-video-radeon does not turn on second display
https://bugs.launchpad.net/bugs/426701
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