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  1. #1
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    Optimus BIOS setting on Latitude E6520 laptop with hybrid graphics

    Hi,
    I own a Latitude E6520 laptop with hybrid graphics (Intel HD 3000 + Nvidia NVS 4200 Quadro).
    I'm trying to install Fedora and only use the open source provided drivers (Nouveau), and I'm confused regarding enabling Optimus in the BIOS or not.
    Please any advice?
    Cheers :)

  2. #2
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    Re: Optimus BIOS setting on Latitude E6520 laptop with hybrid graphics


  3. #3
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    Re: Optimus BIOS setting on Latitude E6520 laptop with hybrid graphics

    Quote Originally Posted by kldixon
    I'd like to stick with Nouveau open source drivers

  4. #4
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    Re: Optimus BIOS setting on Latitude E6520 laptop with hybrid graphics

    I think enabling/disabling optimus just switches igpu or dgpu, either one of them off?
    Laptop Specs
    https://forums.fedoraforum.org/showpost.php?p=1760122&postcount=528

  5. #5
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    Re: Optimus BIOS setting on Latitude E6520 laptop with hybrid graphics

    I'd like to stick with Nouveau open source drivers
    So, you have not read it.

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    Re: Optimus BIOS setting on Latitude E6520 laptop with hybrid graphics

    Quote Originally Posted by kldixon
    So, you have not read it.
    I actually read it, how should it help me? It says that by using the proprietary driver the Optims BIOS setting shouldn't do any difference. But as I said I'm willing to use the OSS stack. Or did I miss something?
    Cheers

  7. #7
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    Re: Optimus BIOS setting on Latitude E6520 laptop with hybrid graphics

    I was thinking of the section 'OSS stack' under 'Limitations'.
    However, if you are having problems with the installer, you may have to blacklist the nouveau kernel driver on the kernel command line and let let the intel driver take over, as they may both be trying to run.
    As for BIOS settings. Try it with Optimus disabled and again with it enabled and see what difference it makes.

  8. #8
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    Re: Optimus BIOS setting on Latitude E6520 laptop with hybrid graphics

    Quote Originally Posted by kldixon
    I was thinking of the section 'OSS stack' under 'Limitations'.
    However, if you are having problems with the installer, you may have to blacklist the nouveau kernel driver on the kernel command line and let let the intel driver take over, as they may both be trying to run.
    As for BIOS settings. Try it with Optimus disabled and again with it enabled and see what difference it makes.
    Installer works great (I wish I could say the same for Ubuntu 17.10 one.. keen in trying their Gnome implementation).
    Left optimus enabled.. but shouldn't I see an option when right clicking an application icon in the dock? A start the program with the Nvdia graphic card sort of things?!
    What a nightmare this laptop.. I thought I could have less troubles being a Dell one :/

    EDIT:
    By the way the context menu option and for starting an application with the dedicated graphic card is now working!
    Cheers :)
    Last edited by horizonbrave; 15th October 2017 at 04:02 AM. Reason: context menu option now working!

  9. #9
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    Re: Optimus BIOS setting on Latitude E6520 laptop with hybrid graphics

    Quote Originally Posted by horizonbrave
    What a nightmare this laptop..
    you mean what a nightmare optimus on linux specifically fedora
    Laptop Specs
    https://forums.fedoraforum.org/showpost.php?p=1760122&postcount=528

  10. #10
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    Re: Optimus BIOS setting on Latitude E6520 laptop with hybrid graphics

    This is the famous Linus quote from The Aalto Talk. Watch 48 mins in for 2 minutes:
    https://www.youtube.com/watch?v=MShb...ature=youtu.be

    Thought I should add: not safe for work
    Last edited by kldixon; 13th October 2017 at 10:22 AM.

  11. #11
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    Re: Optimus BIOS setting on Latitude E6520 laptop with hybrid graphics

    Quote Originally Posted by TruboXL
    you mean what a nightmare optimus on linux specifically fedora :C
    Well, installation gets done and basic stuff works.. all together it's much better of an Ubuntu installation (see link above in my previous post).
    Did you have a better experience with done other distributions?

    By the way the context menu option and for starting an application with the dedicated graphic card is now working!
    Cheers
    Last edited by horizonbrave; 15th October 2017 at 04:01 AM.

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