F11: X starts at wrong resolution

[Adam Jackson]

On Tue, 2009-02-24 at 11:31 -0500, Fulko Hew wrote:

> So if I read you right...  Since I have a 1600x1050 LCD display...
> and there is a 2048 limit, then my 2nd display could only be 448
> pixels wide?  ;-(
> 
> I would have expected dual-head to imply (given the 2048 restriction)
> that I could have two displays up to 2048 wide.  ie.  an internal
> display at 1600x1050 and an external display at 1280x1024 (for
> example)

You are right to expect that.  However that's not what the software
implements.

> Forgive my ignorance, but why should I care about 'virtual size'?
> I thought 'virtual size' simply allowed the 'physical screen' to
> scroll around on the 'virtual screen'.  Or does it mean that I need a
> 'really big' virtual screen that has two physical screens consuming
> parts of that 'virtual screen'?

For RANDR 1.2 drivers (which is most of the relevant ones, these days)
Virtual instead controls how much memory you allocate for the screen up
front.

- ajax

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