[Nouveau] [Bug 14859] External analog monitor does not show part of the output ( Randr12)

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=14859





--- Comment #9 from Jacopo <sbriglie at gmail.com>  2008-03-07 08:47:56 PST ---
(In reply to comment #8)
> Some ideas of things to test:
> 1) Is the situation any better if the external head is plugged at boot?
> 

This is funny: it is reversed like this

xxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxx
oooooooooooooooo
oooooooooooooooo
oooooooooooooooo
oooooooooooooooo

meaning the top third or so is black, while the rest is ok, in full width this
time.


> 2) If nouveau does not bring up the lvds head, does the external head work? --
> to test this, add "return XF86OutputStatusDisconnected;" to the top of
> nv_lvds_output_detect in nv_output.c

This does not change anything with respect to attaching the second head while X
is running: the left stays black

> 3) Attaching the output of "radeontool regs" to the bug (when both heads are
> plugged and nouveau is running) would be interesting.
> 
> 4) Likewise, comparison reg dumps if suggestions 1) or 2) work would be
> invaluable.
> 

I'm attaching reg dumps in the two different situations, plus the xorg log with
the second head plugged at boot


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