i915 dual head woes

Jin, Gordon gordon.jin at intel.com
Sun Apr 27 02:56:37 PDT 2008

Richard Lynch wrote on Saturday, April 26, 2008 10:32 AM:
> Gear:
> Sony VGN TXN 17P laptop
> HP L1940T external LCD/CRT
> Back story:
> http://www.phpbootcamp.com/articles/vgn_txn17p.htm
> (rather long, I'm afraid...)
> So I finally managed to get the latest kernel (for gentoo at least)
> and latest xorg emerged and the i915 driver finally installed...
> It's WORSE!
> Before, I had a working setup for just the LFP.
> And a working setup that would drive the external monitor, but send
> the LFP into black screen of death hibernation, which NOTHING would
> wake up.
> So if I ever wanted to quit Xorg, I'd have to cold-power-off the
> laptop. :-(
> Using the same .conf I now get...
> Nothing.
> The external monitor is kind enough to inform me via the built-in
> on-screen-display that something is trying to run it at 640x480 @
> 67Hz.
> Other than that, I've got a doorstop.
> :-(
> The only "weird" thing that leaps out at me is that both displays try
> to use pipe B, and neither one seems willing to use pipe B.  Is that
> normal?...
> Can anybody who actually understands this stuff look at a .conf and
> .log and give me some idea what to try next?
> http://l-i-e.com/xorg/

You should write xorg.conf with ONE device and ONE screen. You can refer
to http://www.intellinuxgraphics.org/dualhead.html and try both the
dynamic and static setup.


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