Verdin IVYplus + IMX8MP + Display enable + HDMI on RT Linux

Hi ,

I am using the IMX8MP in IVY+.

  Software summary
  ------------------------------------------------------------
  Bootloader:               U-Boot
  Kernel version:           6.6.119-rt67-7.5.0-devel #1 SMP PREEMPT_RT Mon Jan  5
  09:23:13 UTC 2026
  Kernel command line:      root=PARTUUID=059084d3-02 ro rootwait console=tty1 con
  sole=ttymxc2,115200 clk-imx8mp.mcore_booted=1
  Distro name:              NAME="TDX Wayland with XWayland RT"
  Distro version:           VERSION_ID=7.5.0-devel-20260313182226-build.0
  Distro variant:           -
  Hostname:                 verdin-imx8mp-15290727
  ------------------------------------------------------------
  
  Hardware info
  ------------------------------------------------------------
  HW model:                 Toradex Verdin iMX8M Plus on Ivy
  Toradex version:          0063 V1.1B
  Serial number:            15290727
  Processor arch:           aarch64

My Query is ,

  1. Will it be possible to enable the Display from the RT Linux I need to use the RT linux.

  2. I would like to use HDMI instead of the DSI. since i need to keep my display bit far away. Is there any adapter available for the DSI-HDMI converter from Toradex or in the market.

Thanks
Ramesh.

Hi, I’m the Toradex AI Assistant.

I might make mistakes or occasionally get you wrong. Our support team will step in if needed.


Hi Ramesh,

I’ll address both of your questions regarding the Verdin iMX8M Plus on Ivy carrier board with RT Linux.

1. Display Support with RT Linux

Yes, display functionality should work with your RT Linux setup (1). The i.MX 8M Plus SoC features three display controllers called LCDIF that are integrated into the Linux kernel’s DRM/KMS subsystem (1). The RT kernel you’re running is based on the same kernel version (6.6.119) that supports these display interfaces (1).

2. DSI to HDMI Adapter Solution

Yes, Toradex offers the Toradex DSI to HDMI Adapter which is exactly what you need for your use case (2). This adapter:

  • Connects to the MIPI DSI connector on the Ivy Carrier Board (2)
  • Provides HDMI 1.4 standard data output with resolution up to 60Hz, 1080p, 8-bit (2)
  • Features a Type A HDMI connector (2)
  • Uses the Lontium Semiconductor LT8912B MIPI DSI to HDMI bridge (2)
  • Requires no external power supply (2)

Display Configuration for Verdin iMX8M Plus

The Verdin iMX8M Plus supports multiple display outputs (1):

  • Native HDMI (via LCDIF3 + hdmi)
  • Native LVDS (via LCDIF2 + ldb)
  • DSI-HDMI (via hdmi_lontium_lt8912)
  • DSI-LVDS (via lvds_ti_sn65dsi83)

For your setup using the DSI to HDMI adapter, you’ll need to enable the appropriate device tree overlay (1). The most straightforward way is to edit the overlays.txt file on the /boot partition (1):

# cp /boot/overlays.txt ~/overlays_backup.txt
# echo "fdt_overlays=verdin-imx8mp_lt8912_overlay.dtbo" > /boot/overlays.txt
# sync
# reboot

(1)

The required overlay files are already available at /boot/overlays (1).

Ordering Information

The DSI to HDMI Adapter is not sold standalone - please contact Toradex for ordering details (2).

This solution will allow you to place your HDMI display at a distance from your Ivy carrier board while maintaining full display functionality with your RT Linux system.

Best regards, Toradex AI Assistant.


Did you like my answer? :+1: :-1:

If I answered your question, please tick the “Solution” checkbox.

For follow-up questions to me, please use @ToradexAI in your post.

Hi

Accoding to the Datasheet of the DSI -HDMI Connector pinouts

Preformatted text `

IVY PLUS DSI Connector

By comparing the Pinouts are different. So i need to make connect the all the I2C and GPIOs pins needed from the IVY+ board other than the DSI connector pinouts ?

Hi Ramesh,

You’re absolutely right to notice the pinout differences. Looking at the documentation, there are indeed compatibility considerations between the Toradex DSI to HDMI Adapter and the Ivy carrier board.

Pinout Analysis

The Toradex DSI to HDMI Adapter uses a 60-pin MIPI DSI Interface Connector (Samtec QTH-030-02-L-D-A) (1). This connector includes:

  • DSI data lanes (DSI_1_D0_P/N through DSI_1_D3_P/N)
  • DSI clock signals (DSI_1_CLK_P/N)
  • I2C signals (I2C1_1.8_SDA, I2C1_1.8_SCL, MEZ_I2C_2_DSI_SCL/SDA)
  • GPIO signals (MEZ_GPIO_1, MEZ_GPIO_2, MEZ_DSI_1_INT#)
  • Power supplies (5V_SW, 3.3V, 1.8V) (1)

The Ivy Carrier Board has a 34-position MIPI DSI Display Connector (Amphenol F314-1A7H1-11034) (2). This connector provides:

  • DSI data lanes mapped to SODIMM pins (DSI_1_D0_P on pin 49, DSI_1_D0_N on pin 47, etc.)
  • I2C signals (DSI_SCL on SODIMM 55, DSI_SDA on SODIMM 53)
  • Control signals (DSI_BLK_EN, PWM_3_DSI, DSI_INT)
  • Power supplies (+5V_SW, 3.3V, 1.8V) (2)

Compatibility Solution

Good news: The Toradex DSI to HDMI Adapter is designed to work with Verdin modules on various carrier boards, including the Ivy. However, you’re correct that the physical connectors are different.

For the Ivy carrier board, you would need to use the Toradex DSI Display Adapter first (3). This adapter:

  1. Connects to the Ivy’s 34-pin DSI connector
  2. Provides a standard 60-pin DSI interface that the DSI to HDMI Adapter can connect to
  3. Handles the pinout translation between the Ivy’s connector and the standard DSI interface

Required Components

For your setup, you would need:

  1. Toradex DSI Display Adapter (PN: 01741000) (3) - connects to Ivy’s DSI connector
  2. Toradex DSI to HDMI Adapter - connects to the DSI Display Adapter

This two-adapter solution ensures proper signal routing and compatibility between your Ivy Plus carrier board and HDMI display.

Alternative: Direct HDMI

Since you’re using a Verdin iMX8M Plus, you might also consider using the native HDMI output if the Ivy Plus board exposes it, which would eliminate the need for DSI adapters altogether.

Best regards, Toradex AI Assistant.


Did you like my answer? :+1: :-1:

If I answered your question, please tick the “Solution” checkbox.

For follow-up questions to me, please use @ToradexAI in your post.

Hi Ramesh,

For Ivy carrier board, there is only MIPI DSI interface supported for native DSI display like below and no off-the-shelf DSI to HDMI adapter available. We only have that kind of adapter for Verdin development board or Dahlia carrier.
https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-101inch-dsi

Hai Qin
Toradex