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Thread: AMD OverDrive On Linux

  1. #1
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    Default AMD OverDrive On Linux

    Phoronix: AMD OverDrive On Linux

    When it comes to ATI hardware, one of the features we have been after for the longest time on Linux has been any overclocking support. Windows users have ATI's OverDrive at their disposal along with an arsenal of third-party utilities such as ATI Tool. NVIDIA also has various utilities for overclocking their graphics cards on Windows, but they also provide support for overclocking on Linux. Today though with the release of the Catalyst 8.8 Linux driver there is finally ATI OverDrive 5 support on Linux.

    http://www.phoronix.com/vr.php?view=12775

  2. #2
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    This sounds nice, but it's a shame they've limited to the 4xxx series :/

  3. #3

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    Quote Originally Posted by Extreme Coder View Post
    This sounds nice, but it's a shame they've limited to the 4xxx series :/
    It should work on the 2600 and 3000 series too.

  4. #4
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    Quote Originally Posted by Michael View Post
    It should work on the 2600 and 3000 series too.
    Actually, what I meant is support for Xxxx or Xxxxx series, like the X1900 or X1650 and so on. Guess they're too old to be supported right now..

  5. #5
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    Question Underclocking?

    is it possible to underclock the GPU core and mem as well?, I for one am thinking about putting together a HTPC and would want it the graphic adapter to run as cooler than the original spec design to make the whole system generate as little heat as possible.

  6. #6
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    Quote Originally Posted by Gamester17 View Post
    is it possible to underclock the GPU core and mem as well?, I for one am thinking about putting together a HTPC and would want it the graphic adapter to run as cooler than the original spec design to make the whole system generate as little heat as possible.
    korpus:/home/metala# aticonfig --od-setclocks=790,700
    ERROR - Set clocks failed for Default Adapter - ATI Radeon HD 2600 XT
    Please check that input values were valid
    korpus:/home/metala# aticonfig --od-setclocks=800,700

    Default Adapter - ATI Radeon HD 2600 XT
    New Core Peak : 800
    New Memory Peak : 700
    korpus:/home/metala#
    It seems not. Values lower than default clock are not accepted.

  7. #7
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    Quote Originally Posted by metala View Post
    It seems not. Values lower than default clock are not accepted.
    Pity, underclocking would be handy in HTPC applications for the new "hot and noisy" cards. Hopefully this feature is enabled in the future!

  8. #8
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    Quote Originally Posted by Jukka-Pekka View Post
    Pity, underclocking would be handy in HTPC applications for the new "hot and noisy" cards. Hopefully this feature is enabled in the future!
    Isn't that what PowerPlay is supposed to be for?

  9. #9
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    Unfortunately not all cards support Powerplay (e.g. my MSI X1950Pro does not).

    What I did was flash an underclocked BIOS to my X1950 (300MHz core instead of 675MHz), which improved power consumption, noise and heat output significantly. On Windows, I'm using overdrive with auto 3d detection to reset the clocks when gaming. That's not possible on Linux yet (no overdrive support for X1950), but the reduced noise makes up for the performance loss

  10. #10

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    Quote Originally Posted by Original Article
    We'll also be shipping a Phoronix Test Suite module that automatically runs various OpenGL programs and will automatically overclock the graphics core and memory frequencies by a few megahertz each time until it finds the point of losing stability.
    So, this auto-overclocking suite... did that ever pan out? Which one is it?

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