Suppressing automatic modes

Barry Scott barry.scott at
Thu Aug 31 07:00:05 PDT 2006

Kacper Wysocki wrote:
> On 8/31/06, Kacper Wysocki <kacperw at> wrote:
>> On 8/31/06, Perry Hutchison <perryh at> wrote:
>> > Adding a Modes line made no difference.  The resulting behavior
>> > is the same as before, and the logfile is identical except for
>> > the date stamp.
>> [snip man]
>> That's because your Xorg defaults to 16bpp mode since you haven't
>> provided the DefaultDepth parameter, but you've only provided a Modes
>> line for 24bpp mode
> It's prolly just me, but that sentence seems really convoluted. What I
> meant was:
> Add a Modes line to the Depth subsection for the depth you're running
> (16bpp). That way Xorg will know what resolution you want it to start
> with.

Disabling DDC will give you back control.

    NoDDC "True"

Then you can use the Modes to force what you want with any non VESA
modes added via modelines.

DDC/EDID support in X is weak, atleast in the i810 and unichrome drivers 
even with
modesetting, at the moment.


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