Hi all,
Can someone look at my Ambient Light Sensor test experience and tell me if this is normal? See below!
Background:
I am still having a problem with the Adaptive Brightness: indoors, with only atmospheric ambient lights on, the screen is always a little too dark. However, when going outside or in brightly lit rooms, the screen adjusts just fine.
Other people have reported this issue but I have not seen any solution yet aside from switching AB off, which imo would be a shame since it's such a convenient feature.
In an attempt to find out what's wrong I performed a Service Test of the Ambient Light Sensor. Moving the phone around I notice the possible measured value seems to lie between 0.0 and 30000.0.
The 30000.0 is reached when briefly pointing a bright lamp right at the sensor.
Outside, on a cloudy afternoon, it measures around 400-500.
In a reasonably well-lit (bath)room, it's around 60.
On a shadowy spot on my desk (a typical place where the screen gets too dark), the value goes down to 13.0 or 6.0. Below these values there is only 1.0 and 0.0 - I get this when I hold my hand over the sensor at around 1 inch (2,5 cm) distance (so there is not much light reflecting on the phone anymore, but still some!)
The (13.0/6.0) shadowy spot is still bright enough for me to be able to easily read written sticky notes. It is also bright enough to still be able to read the 'SONY' and 'XPERIA' logos on the back of my (black) phone.
Questions:
- Is my ALS working as can be expected?
- Is there a way to structurally increase the brightness at lower ambient light values?
Thanks!
