drivers - Ubuntu 13.04 and Mobility Radeon HD 4225/4250, analog output

  • nagylzs

    I have a HP G62 notebook. Video card is:

    $ lspci | grep VGA
    01:05.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RS880M [Mobility Radeon HD 4225/4250]

    I have a bigger monitor connected to this computer with a D-Sub VGA cable. Today I just upgraded from 12.04 to 13.04. The result was that dual monitor is not working anymore. Catalyst is not working either. I have tried to install binary dirvers from AMD.

    But the installer tells me that my video card is not supported. All I need is Full HD output on the D-Sub port of the notebook.

    The fglrx module cannot be loaded. It tells me there are no compatible adapters. Ubuntu supplied fglrx and fglrx-updates packages do not work either. The best resolution I can get is 1368x768 on the laptop's display. But I bought the bigger monitor for a reason, and I really need it. Please help.

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  • Jolain Poirier

    This question already has an answer here:

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  • Journeyman Geek

    Not sure if my problem is releated but its worth checking. I have a HP Eny 6 1006sa sleekbook that has an AMD A6-4455M APU with Radeon HD 7500G Discrete-Class Graphics. For a fresh Ubuntu 12.10 install I additionally installed the fglrx video graphics drivers, on reboot I log in and would get just a desktop wall paper image with no Unity desk top. Unity also fails to start from the command line. This was very repeatable. I looked at the package dependencies for the Radeon fglrx drivers and checked they were all present using Synaptic. I noted two Kernel packages were missing. Installing these packages following a fresh 12.10 install, enabled trouble free install of the fglrx and then fglrx updates graphics drivers. The two kernel packages missing were:

    1. linux-generic
    2. linux-headers-generic


    Haven't logged this as a bug yet as I'm not sure what to log it against, still investigating.