I am using imx6ulevk for my embedded application.
After I deployed the whole image on the sd card with the following command
$ sudo dd if=build/tmp/deploy/images/imx6ulevk/fsl-image-qt5-imx6ulevk.sdcard of=/dev/<sdcard dev>
i figured out that my /sys folder inside the SD is empty. Nothing inside, 0 bytes.
I can boot the Linux on imx6ulevk board but I cannot stop the LCD for turning blank after 5min
because "$ echo 0 > /sys/class/graphics/fb0/blank" and others similar commands will not work since /sys folder is empty.
when " $ du -hs /sys" returns 0 bytes and " $ vi sys/class/graphics/fb0/blank" returns "cannot read the file"
I tried everything below to disable the blanking but without succes:
echo -e '\033' > /dev/tty0
echo -e '\033[9;0]' > /dev/tty1
echo 0 > /sys/class/graphics/fb0/blank
echo 0 > /sys/class/graphics/fb1/blank
passing consoleblank=0 to bootargs
modifying drivers/tty/vt/vt.c with static int blankinterval = 0;
setterm -blank 0
Any help will be welcome.