Colibri imx8x LVDS 10.1 Display Doesn't work on version 6

Technical Support
, , ,
1

I have hardware:

  • Colibri imx8x
  • Carrier Board : iris V2.0A
  • Toradex 10.1 LVDS Touch Screen

I tried the following image from Toradex Easy Installer using Network image:

  1. Toradex Embedded Linux Reference Multimedia Image 6.4.0 build.8 (2023-10-04)
    Changed the Device Tree Overlay to :

    # cat /boot/overlays.txt fdt_overlays=colibri-imx8x_panel-cap-touch-10inch-lvds_overlay.dtbo

    VGA Display : Yes
    LVDS Display : No
    Touch : No

  2. Toradex Embedded Linux Reference Multimedia Image 5.7.2 build.21 (2023-02-22)

    Changed the Device Tree Overlay to :

    # cat /boot/overlays.txt fdt_overlays=colibri-imx8x_parallel-rgb-lvds_overlay.dtbo colibri-imx8x_atmel-mxt-connector_overlay.dtbo display-dpi-lt170410_overlay.dtbo

    VGA Display : Yes
    LVDS Display : Yes
    Touch : Yes

  3. boot2qt(6.5.3)(Build using Yocto)

    VGA Display : Yes
    LVDS Display : NO
    Touch : NO

Why doesn’t the display work with Reference Multimedia Image 6.4 build?
My goal is to use boot2qt(6.5) with a customized Display. However Boot2qt does not have the /boot/overlays.txt. Any idea how to get the device tree overly working on Boot2qt image? Thanks!

2

Hey @Fan,

I believe you still need to enable the LVDS transceiver* on for the Iris carrier board.

Can you enable this one and try again?

https://git.toradex.com/cgit/device-tree-overlays.git/tree/overlays/colibri-imx8x_parallel-rgb-lvds_overlay.dtsi?h=toradex_5.15-2.2.x-imx

-Eric

3

Hi Eric

How can i enable this overlays?.

I saw this post by MariusMhttps://community.toradex.com/t/linux-bsp-6-4-0-build-8-iris-v2-doesnt-work-x12-micro-usb/21182

and i tried this command
fw_setenv fdt_board iris-v2

The display and touch is now working with Toradex Embedded Linux Reference Multimedia Image 6.4.0 build.8

Thanks,
Fan

4

Please refer to this article.