[Bug 31339] HP/Compaq 8510w HDMI port only works when booted with monitor attached

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=31339

--- Comment #8 from Alex Deucher <agd5f at yahoo.com> 2010-11-02 18:54:42 PDT ---
I see the problem.  Your laptop uses an i2c gpio mux that toggles one i2c line
between the HDMI and DVI ports and also appears to use a mux to toggles the
data/clock lines between the two ports.  I implemented support for the i2c mux
in 2.6.36
(http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=26b5bc986423cf3887e09188cb662ed651c5374d),
but it appears your laptop uses the clock/data mux as well.  I'll try and whip
up a patch soon.

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