How to enable screen saver for save buttry on my qt app in ARM device?

MhM93

Hi. My friendly arm is going o sleep when my device in console mood after one minute. But when I start my qt app the device is not going on sleep mood. some one in this forum (http://www.friendlyarm.net/forum/topic/3924) said cause of "-qws" the app avoid the device to go sleep mood.
How can I active this mood?
please guide me.
thanx in advance;
:)

jsulm

@MhM93 Please do not post same question twice!
https://forum.qt.io/topic/77710/how-to-active-sleep-mood-for-device-to-save-the-energy-in-arm-device-with-qt-app

SGaist

Hi,

@jsulm it's been cleaned up.

@MhM93 Are you looking for something like QWSServer::screenSaverActivate ?

MhM93

Hi and thanx for answer. I write this code to check the screen saver.

qDebug()<<"screen saver"<<qwsServer->screenSaverActive(); //=====>screen saver true

and the result is true. I set this code :

qwsServer->setScreenSaverInterval(5);

it works but how can turn lcd off?

SGaist

You'll have to call low-level functions for that or depending on your target there might a simple device or sysfs file to write to for that to happen.

MhM93

thanx @SGaist . but could you explain it more? my device is friendly arm, linux

SGaist

FriendlyARM currently list 27 products. Can you be a bit more specific ?

Also, searching for "friendly arm turn off lcd" return this thread which point to a solution similar to what I described.