Want to turn off backlight with JB – PW3 or Voyage?

[joblack]

Originally Posted by knc1

No fair.
You introduced a fact not in evidence with the original question (that you want it for a PW-3 when your info box lists more than one model).

It's just a statement that it doesn't work right now with the PW3. I would like to know if somebody has found it a way to control it.

If not I might find the time to search for a solution for the problem and adjust the KUAL app.

[CalbertAmu]

I also would like this. I want to conserve battery even if it's only 20 minutes extra. Although I'm hoping it saves at least an hour :P There is no point in having the light on at all in a well lit place, and this would be a great mod.

[Yourcat]

"echo -n 0 >/sys/class/backlight/max77696-bl/brightness" works for me.

My PW3 is quite new and I poked around a little bit. In case anyone is interested - maybe the wiki would be the better place so please forgive me as I'm new here - here is my small frontlight documentation for PW3:
# `devcap-get-feature -a frontlight` # returns 1 if there is a frontlight
# `lipc-get-prop com.lab126.powerd flIntensity` # returns intensity 0-24, 25 (MAX)
# `cat /sys/class/backlight/max77696-bl/brightness` # returns brightness 0, 1 (0), 2 (1), 3 (2), 4 (3), 6 (4), 14 (5), ... (...), 2531 (22), 2893 (23), 3280 (24), 4095 (MAX)
# `echo -n 0 >/sys/class/backlight/max77696-bl/brightness` # turn frontlight off completely
# `lipc-set-prop com.lab126.powerd flIntensity 0` (values 0-25) turn frontlight on, set intensity to 0-24 (brightness 1-4095)

[knc1]

Originally Posted by Yourcat

"echo -n 0 >/sys/class/backlight/max77696-bl/brightness" works for me.

My PW3 is quite new and I poked around a little bit. In case anyone is interested - maybe the wiki would be the better place so please forgive me as I'm new here - here is my small frontlight documentation for PW3:
# `devcap-get-feature -a frontlight` # returns 1 if there is a frontlight
# `lipc-get-prop com.lab126.powerd flIntensity` # returns intensity 0-24, 25 (MAX)
# `cat /sys/class/backlight/max77696-bl/brightness` # returns brightness 0, 1 (0), 2 (1), 3 (2), 4 (3), 6 (4), 14 (5), ... (...), 2531 (22), 2893 (23), 3280 (24), 4095 (MAX)
# `echo -n 0 >/sys/class/backlight/max77696-bl/brightness` # turn frontlight off completely
# `lipc-set-prop com.lab126.powerd flIntensity 0` (values 0-25) turn frontlight on, set intensity to 0-24 (brightness 1-4095)

A nice little bit of research there, thanks a lot!

[nobodySpecial]

Originally Posted by Yourcat

"echo -n 0 >/sys/class/backlight/max77696-bl/brightness" works for me.

Thanks! I've used this information to make a quick little KUAL application.
Just tap "Lights Out!" and the above command is ran and out goes the lights.

Light turns back on when plugged in, or manually adjusted.

To install:
After you've installed KUAL, simply unzip, and place the lightsOut folder in /extensions
(same as you would any other KUAL application.)

EDIT:
Obviously I'd find front light master after the fact. Oh well.

[geekmaster]

https://www.mobileread.com/forums/sho...13#post3323913

https://www.mobileread.com/forums/sho...52#post3336152

[nobodySpecial]

Originally Posted by geekmaster

https://www.mobileread.com/forums/sho...13#post3323913

https://www.mobileread.com/forums/sho...52#post3336152

And another (more elegant) solution. I have no idea why none of this was coming up in search for me!

[Cinisajoy]

Originally Posted by nobodySpecial

And another (more elegant) solution. I have no idea why none of this was coming up in search for me!

Because this is not the easiest site to search.
No worries.

[encol]

Originally Posted by nobodySpecial

And another (more elegant) solution. I have no idea why none of this was coming up in search for me!

There is also this

(you need to edit FRONTLIGHTDEVICE in config.sh)