external monitor support for i855 broken

[Jim Cline <jcline@xxxxxxxxxxxxxxxxxxxxx>]

Like many users, I rely upon being able to switch my laptop's display from 
the LCD to an external monitor by toggling fn-F7.  Some i855 users have 
reported (to this list) getting a 50 pixel vertical offset of the output 
to CRT, others getting no output at all.  I have reproduced both 
behaviors, depending on the XFree86 version:

XFree86 Version 4.3.0.1 (Debian 4.3.0.dfsg.1-8 20040928112350 
fabbione@xxxxxxxxxxxx): vertical offset on external CRT

latest version, 4.4.99.18 (directly from XFree86 web site): no CRT output 
at all

I also found a user who had full functionality using the Mandrake 10.0 
version, also calling itself XFree86 Version 4.3.0.1.  He now reports that
after upgrading to Mandrake 10.1, his external CRT no longer works.

Apparently there was a recent version of XFree86 where the external 
monitor was working, which then got broken in subsequent versions without 
the developers noticing.

Does anyone know which version this could have been, or otherwise how to 
fix the problem?

--Jim Cline


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