Dynamic brightness question

[cojocar.andrei]

Hi guys, I have a question. I have a f3111 model and I'm seeing black color changes when something whiter is displayed on screen. More precisely, for example: I use Xplore file manager with dark theme. If I open a folder with lots of icons with white text, the black colors change, becoming more brighter. I heard it's something called dynamic brightness and it is on regardless of auto-brightness being on or off. Do you any of you experience this and do you know a way of disabling it?
Thanks

Sent from the center of the galaxy

 

[cojocar.andrei]

Yeah, I think I found a way to disable this, but it needs a kernel recompilation. It's called cabc (content adaptive backlight control) in the kernel and it needs to be set to 0

Sent from the center of the galaxy

 

[cojocar.andrei]

Hi @rrvuhpg,
Thanks for the suggestion. I tried copying the *Image.gz-dtb* and pack it along with the ramdisk using carliv kitchen (I replaced boot.img-kernel with the image). Unfortunate it does not boot. It just shows me a black screen. The Image.gz-dtb was constructed from the sony archive with their indications of how to build the kernel. The kernel was built with default config. Can you help me further? I'm missing some steps. Can you detail a bit, please, on how have you built the kernel?
Thanks.

 

[cojocar.andrei]

It booted with the kernel from your git. Merci beaucoup!
It works, dynamic brigthness off with CONFIG_MTK_AAL_SUPPORT=n in the kernel config.
If anyone is annoyed by it I can share the kernel...

 

[rrvuhpg]

It booted with the kernel from your git. Merci beaucoup!
It works, dynamic brigthness off with CONFIG_MTK_AAL_SUPPORT=n in the kernel config.
If anyone is annoyed by it I can share the kernel...

Very good news