topic Re: Control the brightness and contrast of an lvds screen on I.MX6 bord in i.MX Processors

Control the brightness and contrast of an lvds screen on I.MX6 bord

mgk — Thu, 15 May 2014 13:22:51 GMT

Hi all,

I would like to control the screen's brightness and contrast on my i.mx6 quad board (an udoo quad board) under ubuntu linaro

I tried to modify the brightness through /sys/class/backlight/pwm-backlight.0/brightness but is not working.

I tried the same thing on other files to do rotation and it worked.

Did someone succeeded to do change these parameters ?

Thanks in advance.

kane88 — Sun, 01 Jun 2014 13:40:11 GMT

echo 200 > /sys/class/backlight/pwm-backlight.0/brightness

try the above & post the status .

does the above help ???

mgk — Sun, 01 Jun 2014 15:46:45 GMT

Hi,

Thanks for the reply.

I already tried that. No success.