Apple Cinema 23"

[redhatdude at bellsouth.net]

On Oct 25, 2006, at 7:49 PM, fredex wrote:

> On Wed, Oct 25, 2006 at 03:53:45PM -0400, redhatdude at bellsouth.net  
> wrote:
>>
>> On Oct 25, 2006, at 2:49 PM, Wolfgang S. Rupprecht wrote:
>>
>>>
>>> redhatdude at bellsouth.net writes:
>>>> On Oct 25, 2006, at 12:00 PM, alan wrote:
>>>>> On Wed, 25 Oct 2006, redhatdude at 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.

I use that monitor with another computer and the same cables and it  
works fine. I used an adapter to plug the monitor into the VGA port  
and still didn't work.
EJ