ATI 9550 shows up as laptop in displays after update to 12.04, how do I fix this?

Posted by D_H on Ask Ubuntu See other posts from Ask Ubuntu or by D_H
Published on 2012-12-13T21:39:16Z Indexed on 2012/12/14 23:22 UTC
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My guess is this is on here somewhere but I have searched and even tried looking at bunch of other similar video problems.

My ATI 9550 shows up as laptop in displays after update to Ubuntu 12.04, how do I fix this?


I found the following command on another post sudo lshw -c video. I get this when I run that command:

  *-display:0 UNCLAIMED   
       description: VGA compatible controller
       product: RV350 AS [Radeon 9550]
       vendor: Hynix Semiconductor (Hyundai Electronics)
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 00
       width: 32 bits
       clock: 66MHz
       capabilities: agp agp-3.0 pm vga_controller bus_master cap_list
       configuration: latency=32 mingnt=8
       resources: memory:c0000000-cfffffff ioport:c000(size=256) memory:e5000000-e500ffff memory:e4000000-e401ffff
  *-display:1 UNCLAIMED
       description: Display controller
       product: RV350 AS [Radeon 9550] (Secondary)
       vendor: Hynix Semiconductor (Hyundai Electronics)
       physical id: 0.1
       bus info: pci@0000:01:00.1
       version: 00
       width: 32 bits
       clock: 66MHz
       capabilities: pm cap_list
       configuration: latency=32 mingnt=8
       resources: memory:d0000000-dfffffff memory:e5010000-e501ffff"

This way more info than the command showed in he other post and as far as I can tell right.

This doesn't look to me like a laptop video would list?

I also see this command xrandr, it reports this:

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 1280 x 1024, maximum 1280 x 1024
default connected 1280x1024+0+0 0mm x 0mm
   1280x1024       0.0* 
   1024x768        0.0  
   800x600         0.0  
   640x480         0.0

This is what shows in displays for resolutions but only the 1280x1024 works the others produce tearing in the video. Also I should have mentioned 3D mode does not work.

I have tried ATI/AMD drivers the new one won't load and older ones won't work. I found out the newer driver no longer supports the 9550.

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