Apps can't see the light sensor but automatic brightness works anyway?

Question

I don't have a toggle for automatic brightness in my phone's settings menu and I cannot install apps like Lux Auto Brightness that depend on the light sensor. I can, however, turn automatic brightness on using Widgetsoid and it works fine. Why do all the apps think I don't have a light sensor and how can I fix this?

Since I have installed Cyanogenmod, I can now install Lux. However it always sees a brightness of -1 Lux.

Answer 1

I also had this problem with Lux, always light reported -1, which I don't know it's a problem either from phone, sensor, Android, or Lux itself! BTW, I solved it by using front camera instead of light sensor. here is how:

• go to Lux settings
• click on Sample Collection
• click on Light reading modes
• select Camera instead of Light sensor
• select Front camera (it's obvious that its better than rear camera for this purpose)
• Now, from main screen of settings, click on Modify Linked Samples
• from top, click on Luma (this app uses Lux for sensor readings and Luma for camera readings)
• then you can see app reads ambient light value from camera and displays at top.
• Now the app should do its job, but you may want to check other settings to match your preferences.

good luck