Screen going black with power saving disabled

John Rigby john.rigby at linaro.org
Fri Feb 10 17:17:49 UTC 2012


maybe this will help?
http://ubuntuforums.org/archive/index.php/t-1063566.html

On Fri, Feb 10, 2012 at 12:33 AM, E V <eviala.es at gmail.com> wrote:
> Sorry for the late response. Got some problems at work, and left this for
> some while. Now, I have been asigned back to it, and keeps the same.
>
>  I turned off power using ubuntu 11.10 method [
> http://www.liberiangeek.net/2011/10/ubuntu-screen-going-blank-dark-on-you-stop-it-in-ubuntu-11-10-oneiric-ocelot/ ]
> since that is the version used in the linaro image I got working.
>
>  Problem is that although it works for the most times, there are few cases
> in which screen goes black. If you reboot the board, it may work ok.
>
>  If possible, I would like to remain in the same version of linaro (I really
> hate finding new errors and realizing later that had been introduced by
> software updates, and not by my code...)
>
>  I had similar issues with a Beagle clone, and solved it messing with the
> kernel (disabling the function that made the screen go black) but I prefer
> not to do that kind of things... Probably because of my lack of confidence
> (I am not a software guy, just an electronics engineer who has been assigned
> to a software project...) I prefer to use regular kernels (I mean, not to
> modify anything).
>
>  I am using omap4-extras (Since my application plays videos -or tries to...-
> at 1080p). I am not really sure if this can have been introduced by this
> add-on, because I had it installed from the very beginning.
>
>  Linaro version is 11.11
>
>  Thanks in advance, and please forgive any mistakes in my text.
>
> 2012/1/29 nivr <nicholas at vanryn.com>
>>
>> Would you mind explaining how you disabled the power saving?
>>
>> Regards
>>
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>
>
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