Hi Matt,

Thanks for including all the xorg.conf and Xorg.0.log files!  Those are
helpful for ruling out several possibilities.

I notice in your xorg.conf that the monitor is listed as a generic.  One
thing you could try is to manually specify the hsync and vrefresh rates
specific to your monitor in there.  In theory, xorg should be able to
autodetect those, but sometimes it can't.  You can do this by changing
your monitor section to look like this:

Section "Monitor"
        Identifier      "Default"
        Option          "DPMS"
        HorizSync       28-80
        VertRefresh     48-75
EndSection

But change the numbers to match the frequencies for your monitor.  You
can find these rates from your monitor manual (usually).  If you don't
have the manual handy, you can often find it on the manufacturer's
website.

Based on your description of the problem (everything working ok
seemingly, but the monitor blanking out) it sounds like a monitor issue.
Since monitor detection is not 100%, and issues are fairly common,
that's what makes me think the refresh rates may be mis-detected.
Apologies if you've already checked this.

-- 
[Gutsy] Tribe 1 installer gives blank video during boot
https://bugs.launchpad.net/bugs/119944
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