Hi.
A custom i.MX6 solo board based on android 4.3 (freescale BSP) works a little good with parallel LCD.
The LCD screen turns on while the part of u-boot and kernel are running. so I can confirm u-boot splash screen and kernel logo.
but after log message "run_init_process /init" in kernel part from terminal, Suddenly a LCD screen is black. I already checked some hw part - backlight, LCD clcok, etc - they are ok. but LCD data line(RGB) never send anything.
I find a strange message on the logcat:
D/SurfaceControl( 1215): Excessive delay in unblankDisplay() while turning screen on: 18771ms
I attached a logcat file.
please, give me any advice.
Original Attachment has been moved to: logcat.txt.zip
Hi siwoo
please check latest uboot logo patches
Best regards
igor
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thank you for your advice.
Under the current situation, a u-boot splash screen is keeping until kernel boot up correctly. but a screen gets to black after /init starts. For test, I intentionally add infinite loop code before call /init. As a result of test, a screen is keeping splash image correctly.
and I did to add the only kernel patch code. but a situation is same.
Which part makes this problem either kernel or android platform(start /init)?
I've been in black hole for 10 days. please help me...