your answer is here  ( with more research ;) ) =>
https://groups.google.com/forum/#!topic/beagleboard/MdOBsXNXzEI



On Mon, Jan 13, 2014 at 3:07 AM, Daniel Metcalf <[email protected]> wrote:

> I have installed Ubuntu 12.04.3 onto my BBB and have writen a custom GUI
> with Gtk which I run calling sudo xinit myprogramname. Everything loads and
> is displaying the data that I want but after 10 minutes the display blanks
> and eventually turns off.
>
> After some research on the net I have tried various ways and suggestions
> of disabling the power management without success.
>
> Does anyone have any suggestions? Thanks in advance!
>
> --
> Dan Metcalf -- KB3UUN
>
> --
> For more options, visit http://beagleboard.org/discuss
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