HERE is the TEMP but Acceptable FIX for it ONLY ON CM7 or MIUI!!!!!
[FIX][KERNEL CM7/MIUI] Test Kernel for fixing "blacklight" issue[22/4/2012]
It had been confirmed to be working on MIUI/CM7/CM9!!!
Huge Thanks to arindammanidas....
This thread is not just for users facing Blacklight Issue.. but for every I9003 user.
Here Is the Video Link for the Blacklight Issue...
http://www.youtube.com/watch?v=WQazzR0OPWo Thanks to loukalok
1- install a clean build (don't install gapps and don't restore any backups)
2- wipe data/factory reset
if the blacklight problem remains:
3- Turn off wifi and connect through adb shell (or do it in terminal emulator)
adb shell cat /proc/kmsg > /sdcard/kmsg.txt
wait untill the backlight turns on and turn the screen on
5- repeat step 4 (helps to eliminate redundant data in the logs)
6- press ctrl + c in adb or close terminal to stop logging
7- on adb shell (or terminal emulator) write this
logcat -d > /sdcard/logcat.txt
After Producing the logcat.txt and kmsg.txt post them here along with following information..
1. Which rom are you using(cm7,miui,cm9)
2. Whether you are facing blacklight issue or not??..(post even if you are not facing blacklight issue)
3. Search inside your 'kmsg.txt' for the following line....
NOTE: you can use the find option in your text editor on your pc for finding this line by typing "LCD" in query....