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Thread: How to switch off dgpu with nouveau

  1. #21
    Join Date
    Jun 2008
    Location
    Groningen, Netherlands
    Posts
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    Default Re: How to switch off dgpu with nouveau

    To switch off the nvidia, one can use bbswitch. Install it ( it's in Leap 15 ) and use it like this:
    Get the status:
    Code:
    sudo cat /proc/acpi/bbswitch
    it should show something like this:
    Code:
    0000:01:00.0 ON
    Turn the card off, respectively on:
    Code:
    sudo tee /proc/acpi/bbswitch <<<OFF
    sudo tee /proc/acpi/bbswitch <<<ON
    I've used this on my 2 previous laptops. which had dual graphics, but with low spec NVIDIAs. On both I managed to run bumblebee and ( at the time ) suse-prime, but the NVIDIAs didn't do (f.e.) Google Earth better than the integrated Intels. Switching off the NVIDIA entrirely made the laptops heat up less, so less fan noise, and also gave them a bit of extra battery life.
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  2. #22
    Join Date
    Jun 2008
    Location
    Europe
    Posts
    395

    Default Re: How to switch off dgpu with nouveau

    Thanks to every-one for your answers.
    I installed bumblebee and it looks like it solves partly the problems.
    Actually, dgpu does not turn on when there is a need like it happened with 42.2, but i don't have time for optimisation.
    I don't have anymore the increased battery and energy loss with dgpu always on, but it's a pity there is a regression.

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