Olimex Support Forum

OLinuXino Android / Linux boards and System On Modules => A20 => Topic started by: LeoB on July 18, 2023, 11:05:10 AM

Title: LCD-OLinuXino-5CTS blank after boot
Post by: LeoB on July 18, 2023, 11:05:10 AM
Hello everyone,
I bought the LCD-OLinuXino-5CTS and I'm using it on A20-OLinuXino-Micro with the last official Linux image.
I follow the guide to enable LCD screen with the command below

olinuxino monitor set LCD-OLinuXino-5

and now when I turn the board on, I can see the boot screen on the LCD panel but after the boot it becomes blank and nothing is shown.
I have access to SSH terminal and it works correctly so the boot is finished correctly, but I cannot see nothing on LCD.

Could you please help me to understand what's wrong?

Thank you!
Title: Re: LCD-OLinuXino-5CTS blank after boot
Post by: LubOlimex on July 18, 2023, 11:26:13 AM
This is not how you should set the display. After the board boots and after you login into Linux, run the "olinuxino-display" script and select proper entry then confirm selection and agree to reboot.

Notice that by default A20-OLinuXino-MICRO is setup for resistive touch screen operation. If you wish to have the capacitive touch screen working you need to change a resistor matrix.

For both things refer to "6.4. LCD cable" from the manual:

https://github.com/OLIMEX/OLINUXINO/blob/master/DOCUMENTS/OLIMAGE/Olimage-guide.pdf
Title: Re: LCD-OLinuXino-5CTS blank after boot
Post by: LeoB on July 18, 2023, 08:14:16 PM
Thank you very much for your hint! Now it works perfectly.
I was looking the LCD selection guide PDF instead of the guide you linked.

Thanks again for your help!