UDL device cannot get its own screen

[Ilia Mirkin]

On Wed, Oct 23, 2019 at 2:41 AM Böszörményi Zoltán <zboszor at pr.hu> wrote:
>
> 2019. 10. 22. 22:57 keltezéssel, Ilia Mirkin írta:
> > On Tue, Oct 22, 2019 at 11:50 AM Böszörményi Zoltán <zboszor at pr.hu> wrote:
> >> Section "Device"
> >>          Identifier      "UDL"
> >>          Driver          "modesetting"
> >>          Option          "kmsdev" "/dev/dri/card0"
> >>          Screen          2
> >>          Option          "Monitor-DVI-I-1-1" "DVI-I-1-1"
> >
> > I think you have an extra -1 in here (and the monitor name doesn't
> > exist as per above). And I think the "Screen" index is wrong -- it's
> > not what one tends to think it is, as I recall. I think you can just
> > drop these lines though.
>
> Without "Screen N" lines, all the outputs are assigned to :0
> so the screen layout setup in the ServerLayout section is not
> applied properly.
>

As I remember it, the Screen here is for ZaphodHeads-type
configurations, and it indicates which head you're supposed to use of
the underlying device. My suggestion was to only remove it here, not
everywhere.

  -ilia