Unfortunatelly System UI stopped - Porting to A20 with 4.3" Lcd and TouchScreen

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Eduardo Andrade

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Nov 5, 2015, 10:56:06 AM11/5/15
to android-porting
Hi,

I'm using a A20 pro Dev Kit and trying to customize the SDK image for my purposes (Android 4.2.2).

I was able to change the default LVDS LCD to a 4.3" RGB LCD, remove the capacitive TouchScreen driver and enable the resistive TouchScreen driver (sunxi-ts.ko).
So I made some changes on the .fex file and added the sunxi-ts driver on Linux Kernel.

But every time I load the sunxi-ts.ko (via insmod), the system starts to show the error "Unfortunatelly, System UI has stopped".
If I drop the module (rmmod sunxi-ts.ko), everything runs fine. I can control the system using a mouse. However, I cannot use a mouse forever... I need the TS support.


I cannot understand the error even reading "dmesg" or logcat.
Anyone have any idea from where to start?

Thanks in advance.


Dmesg output:

root@android:/ # dmesg -c                                                     
<6>[  995.142636] binder: undelivered transaction 41040
<7>[  995.383615] cpu up:1
<4>[  995.433232] CPU1: Booted secondary processor
<5>[  995.559402] init: starting 'console'
<4>[  995.564532] [uart]: uart0 LCR & BAUD changed, reset controller...
<6>[  995.593959] init: waitpid returned pid 8281, status = 00007f00
<5>[  995.600465] init: process 'console', pid 8281 exited
<5>[  995.606945] init: process 'console' killing any children in process group


PS: Logcat is attached.
logcat.txt
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