[Qi Hardware discussion] screen blank

Alan W Black awb at cs.cmu.edu
Tue Jan 24 17:57:03 EST 2012


Jiří Brožovský wrote:
> Try the GMU music player - http://wejp.k.vu/projects/gmu
> It surely uses screen blanking (and the SDL, too).

Thanks, yes it does.  As I thought it looks like its not actually an SDL 
thing, but by by writing 0 (on) or 4 (off) to 
/sys/class/lcd/ili8960-lcd/lcd_power).

I'll do that.  (Yes echo'ing to it works)

Alan


> 
> Best regards,
> Jiri Brozovsky
> 
> 2012/1/24, Alan W Black <awb at cs.cmu.edu>:
>> I'd like to blank the screen after non-use (or just speech output) after
>> some time interval to save battery.  SDL seems to switch this
>> functionality off, can someone point me at some application that does
>> this so I can work out what to do.
>>
>> thanks
>>
>> Alan
>>
>>
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