Bug#389007: [Xorg-driver-ati] Bug#389007: Regression: Radeon 9200 powers off Apple Cinema Display connected via DVI

Roger Leigh rleigh at whinlatter.ukfsn.org
Mon Sep 25 03:25:23 PDT 2006

Benjamin Herrenschmidt <benh at kernel.crashing.org> writes:

> What monitor model is it precisely ?

It's a 2005 Aluminium 20" Cinema Display.  Model No. A1081 according
the bottom edge.  It has built-in USB and FireWire hubs and
touch-sensitive brightness and power buttons on the right-hand edge,
if that helps.

> I fixed a problem at one point that was causing exactly that
> behaviour on my Apple Cinema HD display. The problem was that the
> driver was leaving the i2c lines used for DDC in the high state. I
> put them back down at the end of the DDC procedure and that fixed
> it. Now it's possible that this change got lost ...

It was a problem for me IIRC around May/June 2005.


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