Reply To: [Resolved]PiScreen - No Picture / No Backlight

Home Forums Forums Technical Support for PiScreen [Resolved]PiScreen - No Picture / No Backlight Reply To: [Resolved]PiScreen - No Picture / No Backlight

#2887
bored
Participant

Hi Mark,

I have the assembled PiScreen.
The drivers were installed to a clean image of 2014-09-09-wheezy-raspbian.

I can confirm that manually toggling GPIO22 (pin 15) on and off from a python console does toggle the backlight on and off.
However, the command:
echo 0 | sudo tee /sys/class/backlight/*/bl_power
both produce this error:

tee: /sys/class/backlight/*/bl_power: No such file or directory
0

and it's the same for echo 1 as well.

After turning the backlight on manually, there's still no image using fbi.

I should probably also mention that I'm doing all of this through an ssh console - there's no monitor hooked up to the pi.

I will try a copy of your image tomorrow night, and post back.

Cheers,

Bored

Blip, blop, bloop...