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

[Benjamin Herrenschmidt]

On Mon, 2006-09-25 at 11:25 +0100, Roger Leigh wrote:
> 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.

Sounds like the same as mine except mine is 23"... did we change
something there ?

> > 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.
> 
> 
> Regards,
> Roger
>