help configuring a 30" apple cinema display

[Alex Deucher]

On Thu, Jun 4, 2009 at 10:33 AM, Robby Findler
<robby at eecs.northwestern.edu> wrote:
> Ah! Well, I realized I missed something reading the man pages about
> xrandr and what I need to do is this, but it also fails:
>
> $ xrandr --addmode DVI1 2560x1600
> X Error of failed request:  BadMatch (invalid parameter attributes)
>  Major opcode of failed request:  149 (RANDR)
>  Minor opcode of failed request:  18 ()
>  Serial number of failed request:  27
>  Current serial number in output stream:  28
>
> Any hints would be greatly appreciated.

What card are you using?  2560x1600 requires dual-link DVI which not
all cards support.

Alex