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Thread: Dual Graphics support in Catalyst for Llano

  1. #1
    Join Date
    Oct 2011
    GTHA, Ontario, Canada

    Question Dual Graphics support in Catalyst for Llano

    According to the second footnote on AMD’s informational page,
    Linux OS supports manual switching which requires restart of X-Server to engage and/or disengage the discrete graphics processor for dual graphics capabilities.
    I want to clarify whether there is present support for the IGP and a discrete card working in conjunction for better performance than either alone. If not, I would appreciate it if any one knows and could tell me whether there has been any news from AMD about including this in an upcoming version of their driver.

    I want to build an mATX box in the very near future with an A8-3870 and a Radeon 6670 (assuming they release the former soon). Searching about the web has proven rather unfruitful. Much thanks in advance.
    Last edited by anomie; 10-05-2011 at 02:04 AM. Reason: Forgot to include the link.

  2. #2
    Join Date
    Oct 2007


    I can actually say that Dual-graphics support does not seem to support the crossfire X configuration yet. however it's perfectly fine if you use the graphics cards separately for now. As for the Combination from an Llano chip and a dedicated chip, this is usable in single gpu mode, but not with the CrossfireX. I should also make sure you note that this is from a mobile setup of the Radeon 6720G2 ( combination of Radeon HD6520G and Radeon HD6650M ). Also, during installation you might need to use the Vesa drivers until you get the latest proprietary fully installed ( Tested on Sabayon Linux 6 )

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