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Thread: Dell XPS15 L502X - Noob's way for Optimus issue

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  1. #1
    Join Date
    Jan 2010
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    India
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    42
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    Ubuntu 10.10 Maverick Meerkat

    Smile Dell XPS15 L502X - Noob's way for Optimus issue

    Hey!
    I have a Dell XPS15 L502X with Nvidia GeForce GT 525M switchable with Intel HD Graphics accelerator. I have Ubuntu 11.04 but I am aware there is some issue with Optimus and it.
    I found many threads and posts for the solution for the above but couldn't make all of it.

    I am all new to 'acpi', 'bumblebee' etc.

    Can someone post step-by-step procedure for the solution?

    There is a thread which is regularly updated here.
    though I can't make much from it.

    I just dont want to use my Nvidia card as I use Ubuntu for only light tasks!

    Thanks a lot and appreciate it!

  2. #2
    Join Date
    Apr 2011
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    17

    Re: Dell XPS15 L502X - Noob's way for Optimus issue

    Hello,

    I don't know what You did, so I'll try to write every step You need.

    First of all, please make backup in case something go wrong.

    Steps to do in terminal:
    0. Don't even try to install nvidia drivers (if you really don't need nvidia graphic card).
    1. Add xorg edgers and install newest xorg
    Code:
    sudo add-apt-repository ppa:xorg-edgers/ppa && sudo apt-get update
    2. Install XORG
    Code:
    sudo apt-get install xorg
    3. For a second go away for terminal, and check updates (if you want you can of course check updates via apt-get):
    - ALT-F2 -> update-manager -> check -> install updates if available
    4. Reboot
    5. Open terminal
    6. If You have git already installed that's cool, otherwise install git-core
    7.
    Code:
    cd ~
    8.
    Code:
    git clone http://github.com/mkottman/acpi_call.git
    9.
    Code:
    cd acpi_call
    10.
    Code:
    make
    11.
    Code:
    sudo insmod acpi_call.ko
    12.
    Code:
    ./test_off.sh
    You probably switched off Your nvidia card!

    13. In my case calling all this acpi_methods, which are in test_off.sh, hangs up system sometimes.
    So I prefer to leave only this one I need:
    If You want this too, just edit test_off.sh and Your methods should look like this:
    Code:
    methods="
    	\_SB.PCI0.PEG0.PEGP._OFF
    	"
    remember about quotes.

    Hope this helps.

    Suspend not always working, I've done suspending works on my XPS, but I'm not sure how I did this .

  3. #3
    Join Date
    Jan 2010
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    Ubuntu 10.10 Maverick Meerkat

    Re: Dell XPS15 L502X - Noob's way for Optimus issue

    Wow..cool! Thanks for that reply!!! Will try it out soon and let you know!

    But, do I have to run that script everytime I restart (read sumwer like that!) or just once is enough?

  4. #4
    Join Date
    Apr 2011
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    17

    Re: Dell XPS15 L502X - Noob's way for Optimus issue

    You need to run this every restart if You don't add it to autostart:
    Code:
    cd ~/acpi_call
    sudo insmod acpi_call.ko
    ./test_off.sh
    One more thing.
    If You had kernel updates You will need to recompile this, so like this:
    Code:
    make clean
    make
    and normal procedure then.

  5. #5
    Join Date
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    Ubuntu 10.10 Maverick Meerkat

    Talking Re: Dell XPS15 L502X - Noob's way for Optimus issue

    Amazing!! Thanks a ton!!!

    Again,a doubt!
    The procedure is independent of x32 or x64 bit Ubuntu right?

  6. #6
    Join Date
    Apr 2011
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    Re: Dell XPS15 L502X - Noob's way for Optimus issue

    Yes, it doesn't matter if You installing that on x32 or x64 architecture.

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