Linux/AM4379: LCD configuration

Alex824

Intellectual 490 points

Part Number: AM4379

Tool/software: Linux

Hi all:

My product board uses AM4379, and the operating system is the RT-LINUX SDK provided by Ti.

The LCD interface is LVDS, and the resolution is 1024X768.

Currently, my product board can run demo GUI，But the resolution and the color of the display are problematic, and the display effect is shown in the following figure.

I think I should modify some of the configuration file to solve this problem. But it's not clear which documents to start. So who wants to give me some hints?

Thanks very much!

over 8 years ago

0 Margarita Gashova over 8 years ago

TI__Guru* 80190 points

Hello,

You could check this user guide:
processors.wiki.ti.com/.../Linux_Core_DSS_User's_Guide

It seems to me like mismatch between color formats. Could you check this?

BR
Margarita

0 Alex824 over 8 years ago in reply to Margarita Gashova

Intellectual 490 points

Thank you for your reply.

I modified the parameters in am4379-gp-evm.dts about the resolution and clock of the LCD.

LCD resolution is already what I need. But the color is still a problem. I didn't find the parameters in the DTS file to modify the LCD color format.

Which file is the modification of the color parameter? Do I need to go to the LINUX KERNEL to modify the driver of the LCD part?

The following figure is the latest display effect, and the resolution is correct.

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Linux/AM4379: LCD configuration