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Thread: 2009 iMac running ubuntu has 4 duplicated screens that are unreadable. Please help!

  1. #1
    Join Date
    Jun 2023
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    2009 iMac running ubuntu has 4 duplicated screens that are unreadable. Please help!

    I just installed linux 22.04 on this mac and it is stuck in this terrible state. I have tried booting to grub but that isn't working. When I started it in safe graphics mode it worked fine. After installing, it went back to the messed up graphics. How can I either fix the screens or keep it in safe graphics mode?

    Keep in mind that it is impossible to read the screen.


    Thanks!

  2. #2
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    Jul 2008
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    Kubuntu

    Re: 2009 iMac running ubuntu has 4 duplicated screens that are unreadable. Please he

    Three things might be helpful here:

    1. The make and model of the GPU.

    2. The driver you installed.

    3. An image of the screen.
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    A thing discovered and kept to oneself must be discovered time and again by others. A thing discovered and shared with others need be discovered only the once.
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  3. #3
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    Re: 2009 iMac running ubuntu has 4 duplicated screens that are unreadable. Please he

    I looked it up and I think the gpu is AMD Radeon Pro5300

    https://imgur.com/a/CTuyXKT <--Link to image

    When I installed I said yes to third party drivers. The install was on safe graphics mode and looked perfect.
    Last edited by ewnotouch; June 19th, 2023 at 08:28 PM.

  4. #4
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    Re: 2009 iMac running ubuntu has 4 duplicated screens that are unreadable. Please he

    The AMD Radeon Pro 5300 came out in 2020. Your machine in a 2009. Are you sure that is the correct GPU?

    Would you please post the results of

    Code:
     lspci | grep VGA
    Please read The Forum Rules and The Forum Posting Guidelines

    A thing discovered and kept to oneself must be discovered time and again by others. A thing discovered and shared with others need be discovered only the once.
    This universe is crazy. I'm going back to my own.

  5. #5
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    Re: 2009 iMac running ubuntu has 4 duplicated screens that are unreadable. Please he

    It is VERY hard to read but I think it says
    VGA compatible controller : Advanced Micro devices inc. AMD/ATI RV730:M96-XT [mobility radeon HD 4670]

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