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State of Catalyst GPU switching

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  • State of Catalyst GPU switching

    Hello there,
    i am planning to buy some long-battery-life notebook and am thinking about using AMD dual graphic notebook. What is the state of realtime GPU switching in Catalyst driver for linux? Anyone has working with it?

  • #2
    I don't think it's supported in Linux. Make sure you get a laptop that provides a manual or BIOS switch between discrete and integrated GPUs.

    All AMD dual-graphic laptops are supposed to have that switch but a few models leave it out.

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    • #3
      Is it at least work in progress for catalyst driver? Or am i a "unsupported customer"?

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      • #4
        I don't think those two are connected. There are no plans to support switchable graphics in the driver on Linux as far as I know. We don't offer that support on all Windows variants either, as far as I know. If you purchase a laptop which follows the spec we provide to our OEM customers then use of either GPU will be supported, using the manual/BIOS switch rather than a driver-controlled switch.

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        • #5
          Hi all. After the release of 12.1 Catalyst drivers, I'm still unable to switch from the integrated ati card to the discrete one. I have 4200/5650 cards on an HP Notebook. I tried to use aticonfig to configure both the adapters, but if i do that, i'll get a black screen on the next reboot. How the hell can i use my 5650 on linux? Does anybody has managed to do that? Thanks

          ps: the HP bios doesn't let you deactivate one of the gpu.

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          • #6
            Ditto

            Originally posted by v4mpiro View Post
            Hi all. After the release of 12.1 Catalyst drivers, I'm still unable to switch from the integrated ati card to the discrete one. I have 4200/5650 cards on an HP Notebook. I tried to use aticonfig to configure both the adapters, but if i do that, i'll get a black screen on the next reboot. How the hell can i use my 5650 on linux? Does anybody has managed to do that? Thanks

            ps: the HP bios doesn't let you deactivate one of the gpu.
            This is I think what is happening to me. Its being discussed in the thread "Is there any guide on xorg.conf for ATI?" in this same forum. I have a 4200/6300 and I can only use the 4200 in Linux. I don't mind switching, Iíll be fine if I could just use the high-end GPU, but it has been so far impossible.

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            • #7
              Originally posted by v4mpiro View Post
              ...
              I have no own experience with dual gpus. But I read something recently about it:
              Some Good News for AMD 6700M HD / Intel Owners
              Bumblebee thread (hdas posts)

              It looks like it works at least with some 6xxx series mobile Radeon cards in combo with Intel IGP.
              Last edited by Fenrin; 01-29-2012, 07:12 PM.

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