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Re: Apple Cinema 23"



On Wed, Oct 25, 2006 at 03:53:45PM -0400, redhatdude bellsouth net wrote:
> 
> On Oct 25, 2006, at 2:49 PM, Wolfgang S. Rupprecht wrote:
> 
> >
> >redhatdude bellsouth net writes:
> >>On Oct 25, 2006, at 12:00 PM, alan wrote:
> >>>On Wed, 25 Oct 2006, redhatdude bellsouth net wrote:
> >>>>Can someone tell me how to get my 23" Apple Cinema display to work
> >>>>with my Fedora system?
> >>Yes, it is an integrated chip Radeon 9100 IGP, and yes, I have the
> >>display plugged in when I turn on the machine.
> >
> >Just a bit of background: That 1920 x 1200 display is pushing what DVI
> >is allowed to do in a single-link DVI.  The official limit is 1.65 Ghz
> >bit-clock on the DVI wires, which was chosen to allow 1600x1200 at a
> >moderate refresh rate with a bit of breathing room.  Stuffing
> >1920x1200 down that line takes some creative shaving.  Some companies
> >support that resolution over plain old DVI, some don't.  (Ironically,
> >many cards can do much higher resolutions over the analog outputs than
> >over the digital outputs.)
> >
> >Does /var/log/Xorg.0.log say anything interesting?
> >
> >-wolfgang
> >--  
<snip> 
> I set it up at 1600X1200 fearing that the system would not be able to  
> handle anything bigger than that. It didn't work.
> I found nothing related to the display in the logs.
> EJ

I think I saw in an earlier post in this thread that you don't even
see text from the BIOS at bootup time. While I don't know anything
about DVI, I'd think that if the monitor/cable/video card were 
working right that you SHOULD see such text. 

Given that you don't, you may find it helpful. to back off and do some
experimentation/troubleshooting on the connection. E.G., do both the
computer and monitor have standard 15-pin VGA connectors? If so you
may wish to try them to see if you get text at startup. You may wish
to try a different DVI cable, or a different display with both analog
and DVI cables. 

My guess is you'll find something interesting in one or another of
those experiments.

-- 
---- Fred Smith -- fredex fcshome stoneham ma us -----------------------------
                        The Lord is like a strong tower. 
             Those who do what is right can run to him for safety.
--------------------------- Proverbs 18:10 (niv) -----------------------------

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