TomGiordano/kernel_zte_blade — comment on commit ffdd174a21542d1ece7768d6f3445a4a40b66b19
File: drivers/i2c/chips/taos.c line 235
By TomGiordano:

Users were complaining about exactly the same problem before this change. It is a configuration issue with the thresholds used to adjust the backlight. (see /device/zte/blade/overlay/frameworks/base/core/res/res/values/config.xml)

http://code.google.com/p/cyanogenmod/issues/detail?id=4380