Verdin iMX8MPlus LVDS

[josephjang]

We need to use 2 LVDS ports because we have to use independent 2 LCD.
Regarding Verdin iMX8MPLUS, it supports 1xdual channel or 2xsingle channel in datasheet.
If we use 2 single channels, can we use LCD independently? Max resolution of each LCD?

[ToradexAI]

Hi, I’m the Toradex AI Assistant. The Toradex Support team will follow up with you shortly!

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The Verdin iMX8M Plus supports 1x dual-channel or 2x single-channel LVDS configurations. If you use 2 single channels, you can indeed use two LCDs independently. However, the context provided does not specify the maximum resolution for each LCD when using single-channel LVDS. You may need to refer to the specific datasheet or technical documentation for the Verdin iMX8M Plus to determine the maximum supported resolution for each single-channel LVDS output.

Please, also check if these links can help you solve your problem:

Verdin iMX8m plus two LVDS display support

Hi there, I would like to know if DSI/LVDS bridge IC is required to support two separate LVDS displays in Verdin iMX8m plus. In the data sheet, it is not stated that the LVDS I/F in the SoM supports two independent single channels. But the block diagram in the date sheet implies that 2 single LVDS channels are supported. Please let me know which one is correct.

How to add new customise HDMI resolution.

[alvaro.tx]

HI @josephjang ,

Yes, is possible to use 2x displays independently. You essentially need to define a lvds-channel@1 similar to what this customer did in the device tree (overlay).

This information from the kernel is also useful.

@josephjang

Max resolution of each LCD?

From the Verdin iMX8M Plus datasheet:

A single channel LVDS interface can support resolutions up to 1366×768 pixels @60 frames per second (80MHz pixel clock maximum). For higher resolutions, a second LVDS channel is required.

I did some work in LVDS some time ago that helps explain how is LVDS transmitted:
Mitsubishi Displays - Linux information - Toradex - V1.pdf (973.8 KB)

Conclusion: Yes, you shoule be able to drive 2 independent LCD if each of them are upto 1366×768 pixels @60 frames per second (80MHz pixel clock maximum).

Kind regards,
Alvaro.