[ale] Weird behavior with Intel 965 graphics

[Chris]

Jim,

Thank you for the quick response! Unfortunately, I don't see that
sysctl at all in the output of "sysctl -a". Any other ideas?

Thanks!

Chris

On Wed, Feb 15, 2012 at 12:06 PM, Jim Kinney <jim.kinney at gmail.com> wrote:
> that seems like it's a param for sysctl. look in /etc/sysctl.conf as a place
> to make it perm.
> Test by looking in /proc/sys/ or /sys and echo that value into a file named
> allow_duplicates that _should_ exist already. It may be hiding in the video
> chipset namespace somewhere.
>
> On Wed, Feb 15, 2012 at 11:19 AM, Chris <behrnetworks at gmail.com> wrote:
>>
>> Hello,
>>
>> I'm seeing some odd behavior on my Dell Latitude D630. It's got the
>> mobile GM965/GL960 Intel graphics chipset. I'm running
>> Debian Wheezy on it and after grub loads, the screen goes blank. The
>> laptop does boot, and I can log in and start an X
>> session and get the screen back. If I plug an external monitor into
>> the VGA port the problem doesn't appear. It seems to be
>> that the VGA port wants to be the primary output over the LCD panel. I
>> noticed in my dmesg output a line that says:
>>
>> [ 14.817404] [Firmware Bug]: Duplicate ACPI video bus devices for the
>> same VGA controller, please try module parameter
>> "video.allow_duplicates=1"if the current driver doesn't work.
>>
>> I'm betting that using this setting will fix my problem. Where does it
>> go??
>>
>> Thanks!
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>
>
>
> --
> --
> James P. Kinney III
>
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> consumerism or hatred of the vulnerable, then the powerful can do as they
> please, and those who survive will be left to contemplate the outcome.
> - 2011 Noam Chomsky
>
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