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I have installed ironhide using ppa [11.10 - 32 bit, Dell xps 15]. After rebooting I tried to disable nvidia gpu using the command "sudo ironhide-disablecard". I got message as "ERROR : no module for nvidia found at /proc/modules" and "nvidia card disabled successfully". Is it a normal behavior? Please note I tried disabling the card without trying to enable it.

Thank You
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I would try installing Bumblebee 3.0. A bit of info here: askubuntu.com/questions/36930/… –  213441265152351 Feb 18 '12 at 11:34
    
Did you try a recent version of Ubuntu and Bumblebee? –  213441265152351 Jun 9 '12 at 15:11
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1 Answer 1

Currently ironhide is no longer maintained. You should install Bumblebee instead using the bumblebee/stable ppa.

But to answer your question: "Disabling" the nvidia card in this way does nothing. By default the nvidia card is not used, only when using optirun <command>. The nvidia card cannot be disabled any more then to deprive it of it's drivers and run on intel only.

However there is a possible workaround I read, which is to reverse engineer the windows drivers to find the ACPI calls needed, then create a script for it yourself. Not recommended unless you are an expert on this.

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As a Bumblebee developer, I can tell you for sure that we're not reverse engineering the Windows drivers. After analysis of a lot ACPI tables, I crafted a new module for toggling the power. Expect the new release within two weeks. –  Lekensteyn Jan 3 '12 at 9:38
    
That's another way to find them. Didn't mean to suggest you were doing so. Great to hear this development. I look forward to it! –  Beanow Jan 3 '12 at 10:07
    
FYI, Bumblebee 3.0 has been released a few days ago and detects the right method automatically. There is no need for customizing ACPI calls anymore. askubuntu.com/a/36936/6969 –  Lekensteyn Jan 26 '12 at 13:52
    
Ty, running it with great enjoyment of my added battery time and greater resolutions on my MiniDP. –  Beanow Jan 27 '12 at 16:12
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