xorg.conf how to set to mirror mode

[Alex Deucher]

On Mon, Apr 30, 2012 at 7:44 AM, Jason Wu <jason.wu at frescologic.com> wrote:
> I would like to have mirror display across both monitor ,
> with A monitor connect to intel display card,
> and B monitor connect to a usb to vga dongle.
>
> on KDE or GNOME i can have both screen working in extend mode,
> but i want both screen have exactly the same output, which is mirror mode
> how to do the setup? or should i add any code in my xf86-displaylink driver?
>
> here's my xorg.conf
> ##########################################
> Section "Device"
>         Identifier      "DisplayLinkDevice"
>         driver          "displaylink"
>         Option  "fbdev" "/dev/fb1"
> EndSection
>
> Section "Monitor"
>         Identifier      "DisplayLinkMonitor"
> EndSection
>
> Section "Screen"
>         Identifier      "DisplayLinkScreen"
>    Device          "DisplayLinkDevice"
>         Monitor         "DisplayLinkMonitor"
>    SubSection  "Display"
>                 Modes   "1024x768"
>         EndSubSection
> EndSection
>
> ############### Card1 Intel ##################
> Section "Device"
>     Identifier  "Card1"
> Driver      "intel"
> BusID       "PCI:0:2:0"
> EndSection
>
> Section "Monitor"
> Identifier   "Monitor1"
> EndSection
>
> Section "Screen"
>     Identifier "Screen1"
> Device     "Card1"
> Monitor    "Monitor1"
> EndSection
>
> ############### Server Layout ###############
> Section "ServerLayout"
> Identifier     "X.org Configured"
> Screen         0 "DisplayLinkScreen" 0 0

Something like this:

Screen         1 "Screen1" 0 0

Alex

> Screen         1 "Screen1" RightOf "DisplayLinkScreen"
> #Screen 0 "Screen1" 0 0
> #Screen 1 "DisplayLinkScreen" Leftof "Screen1"
>        Option         "Xinerama" "true"
> EndSection
>
>
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