hybrid-graphics-linux team mailing list archive

[CHRISTOPHER BROWN <cjbrown@xxxxxxxx>]

Hi,

I had similar issues with acpi_call on my machine (m14x). I was able to
power on/off the card ok until a reboot. After reboot the card was MIA
in BIOS, Windows device manager, and Linux pci list. In my case, completely
powering down the notebook, waiting a few seconds, then restarting the
system restored the card's availability.

It seems when doing a quick 'reboot' with the Nvidia card powered down, the
system BIOS does not restore the card to its' default up state, and the
BIOS/OS doesn't register the card. Perhaps it is best to power-up the card
before a reboot or shutdown. I am going to expirement more when time
permits.

On Thu, Jun 9, 2011 at 7:01 PM, Jared Prolo <jwprolo@xxxxxxxxx> wrote:

> Following instructions here I was able to get a success message for the
> test_off script.  Log shows:
>
> acpi_call: Calling \_SB.PCI0.PEG0.PEGP._OFF
> acpi_call: Call successful: 0x0
>
> Now I can't get the card back on to try to get going with bumblebee.  In
> fact, if I switch over to boot Windows, it fails to find the card as well.
>  Log shows:
>
>  acpi_call: Calling \_SB.PCI0.PEG0.PEGP._ON
> acpi_call: Cannot get handle: Error: AE_NOT_FOUND
>
> Any ideas for what I should try next?  Thanks for any help.
>
> JP
>
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