Slashdot is powered by your submissions, so send in your scoop


Forgot your password?
Software Linux Hardware

Linux Overclocking Software 30

An anonymous reader writes to tell us Phoronix has posted an article that covers the basics of GPU and CPU overclocking utilities available for Linux. From the article: "In 2005 we had featured several articles on the state of NVIDIA graphics card overclocking under Linux. In early 2005 the only option for Linux users was NVClock. The open-source NVClock was started by Roderick Colenbrander in 2001 and since then has been evolving. However, coming out in June of 2005 from the NVIDIA camp was CoolBits support for their alternative operating system drivers."
This discussion has been archived. No new comments can be posted.

Linux Overclocking Software

Comments Filter:
  • Priority ? (Score:1, Insightful)

    by Rastignac ( 1014569 )
    Before overclocking the videocards, some priorities should be fixed: good Linux drivers, with good support, with advanced functions. Now, the drivers situation is far from perfect. Overclocking should come later.
    • Are you joking? Nvidia makes very good Linux drivers. They are on par with the Windows drivers and have been for years.
    • by Netino ( 1021745 )
      "Perfection" *always* must come later. If perfection would be possible.
      We always must have *functional* drivers, and immediately *correct* problems.
      Linux mainly have to stay (always was) at the technology borders.
  • Nvidia Linux Drivers (Score:3, Informative)

    by information_storage ( 1025634 ) on Tuesday December 05, 2006 @04:34AM (#17110646)
    Might I suggest that we work on creating good Nvidia Linux drivers before we work on overclocking our poorly driven hardware. I'm counting on nouveau [] to save us unix/nvidia users in this respect.
    • by thegux ( 892222 )
      With regard to the Noveau thing, there's a pledge [] to help fund the Noveau project.
  • by Pausanias ( 681077 ) <pausaniasx@gmail.3.1415926com minus pi> on Tuesday December 05, 2006 @04:36AM (#17110654)
    This has been a big complaint of mine for a long time. We all know that under Windows, NVidia has had this PowerMizer [] thing that allows you to lower GPU power consumption. And we all know about Coolbits, which allows you to over/underclock your GPU in both Windows and desktop linux.

    Now here's the thing. Both Coolbits and PowerMizer are disabled for mobile GPUs under Linux. So when you're not needing full 3D performance, that NVidia card is sitting there sucking up your laptop battery power. Might as well load up Beryl [] and go nuts.

    Oh, and nvclock does not work on all GPUs. My mobile QuadroFX GPU, for example, seems particularly immune to it. When I run it nvclock seems to think it is underclocking my GPU, but I see no effects whatsoever---no reduction in the GPU temperature, for example, which is constantly sitting at 85C. Any other suggestions?

    I keep on hearing about how bad the binary linux ATI drivers for linux are, but hey, at least they've got their PowerPlay (GPU downthrottler) thing working in Linux. Maybe for my next laptop I'll consider an ATI card.
    • Re: (Score:2, Informative)

      Maybe it is underclocking it, but the GPU sees the reduction in temperature and lowers the fan speed accordingly ? I would suggest finding an extremely GPU-bound benchmark and running it before and after your underclock attempt to try and make sure.
      • by Andy Dodd ( 701 )
        Fan speeds usually have speed steps and not a continuous range. Usually it's "off, slow, or fast". Thus I'm sure he'd know if his fan speeds were changing.

        It's a known fact that NVClock no longer supports "legacy" overclocking interfaces (i.e. directly twiddling the card rather than going through CoolBits) very well, and as a result, it's basically impossible to change clock speeds of 6000 and 7000 series mobile GPUs, as NVClock doesn't suport 6ks and 7ks very well without using CoolBits, and NVidia's dri
        • The 9xxx betas are out: I'm running 9742 on my Gentoo system right now. I don't know about the state of CoolBits though. Get the x86 Linux [] or the amd64 Linux [] 9742 drivers direct from nvidia, or get Gentoo [] and have the choice of being always up-to-date :).
          • by Andy Dodd ( 701 )
            Turns out my post was a case of PEBCAK - I set the keyword for media-video/nvidia-drivers to ~x86, not x11-drivers/nvidia-drivers (the NV drivers were moved out of media-video and I didn't realize)

            Going to try it on my laptop tonight.
        • Those drivers are out. And yes, somewhere in an obscure forum post on ( a post that I can no longer find, by the way), they said they were considering enabling mobile powermizer/coolbits in the 9xxx drivers. They have not done so. I am running the 9625 drivers and there is no Coolbits and no powermizer on my laptop. And they don't have it in 9631 either.

          I heard back in March/April or so that NVidia was planning on enabling CoolBits for mobile GPUs on Linux some time during the 9x.xx series o

      • No. The fan speeds do not change, and there is no change (relative to the default enon-nvclocked state) even when I manually set the fans continuously to their maximum setting using i8kfan.

"How many teamsters does it take to screw in a light bulb?" "FIFTEEN!! YOU GOT A PROBLEM WITH THAT?"