sao
Posts: 2
Joined: Fri Feb 01, 2013 7:58 pm

xrandr/extended desktop

Fri Feb 01, 2013 8:13 pm

Model B supports HDMI and RCA. Question: Can we send different outputs to these two video ports?

My (cheap) laptop has a VGA out and HDMI. Using xrandr I can produce an extended desktop spanning over two screens, with the VGA out covering one and the HDMI covering the other. I would like to do the same. My specific needs are

* to display independent (mostly PDF) slides -- static images
* 800x600 resolution is okay (640x400 is probably too low)
* I do not need to drag a window from the VGA to HDMI (xrandr allows for that)

Does the Model B hardware support this? This is for school use and I need to provide evidence that it would work before I can get a pi for testing :( so your help is most appreciative. THANKS!

Cloudcentric
Posts: 982
Joined: Fri Sep 14, 2012 9:13 am

Re: xrandr/extended desktop

Fri Feb 01, 2013 8:46 pm

The Pi has either HDMi or Composite video output, not both together as far as I am aware.............
I know everything about nothing"

sao
Posts: 2
Joined: Fri Feb 01, 2013 7:58 pm

Re: xrandr/extended desktop

Fri Feb 01, 2013 9:06 pm

Cloudcentric wrote:The Pi has either HDMi or Composite video output, not both together as far as I am aware.............
Thanks. Is that a hardware limitation or a software/OS one? For laptops (e.g.) it is not uncommon to have to toggle function keys to turn on/off video projectors. Where can I find out more about this?

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