Print Page - A20 - shut the LCD ?

Title: A20 - shut the LCD ?
Post by: otyugh on October 25, 2014, 02:29:45 AM

Hey,
any idea how I could make the LCD screen "shut" in stead of having a "shiny black screen" ?

Thanks for any tip ! (and generally if you know tips to reduce energy consumption while under battery ; lowering CPU, lowering luminosity, using hdparm or such, I really care to hear about your practice !)

Title: Re: A20 - shut the LCD ?
Post by: dave-at-axon on October 25, 2014, 06:29:26 AM

Shiny black means that the backlight is still active.

Which OS are you using. I run Android and it properly powers off the LCD and the backlight.

Title: Re: A20 - shut the LCD ?
Post by: otyugh on October 25, 2014, 01:57:38 PM

I almost forgot ! It's debian.

Title: Re: A20 - shut the LCD ?
Post by: MBR on October 26, 2014, 04:44:42 AM

See this post https://www.olimex.com/forum/index.php?topic=3475.msg14704#msg14704 (https://www.olimex.com/forum/index.php?topic=3475.msg14704#msg14704) (and the rest of the thread)

Title: Re: A20 - shut the LCD ?
Post by: otyugh on October 26, 2014, 07:14:59 PM

xset dpms force off

Works okay. :)
Even If I'd be more intersted by a way to manage de backlight intensity.

Title: Re: A20 - shut the LCD ?
Post by: ebelouet on December 16, 2014, 07:58:43 PM

Hi,

You function xset dpms force off make lcd off, but he crash linux, do you have this mistake ?

Sincerely
Eric

Olimex Support Forum

OLinuXino Android / Linux boards and System On Modules => A20 => Topic started by: otyugh on October 25, 2014, 02:29:45 AM