Dual Mode with LVDS+HDMI displays

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Dual Mode with LVDS+HDMI displays

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callahwirdian
Contributor I

Hi!

We have been working with the IMX6 Sabre SDB development board and we are trying to make the dual mode work with both the HDMI and the dual LVDS channel.

This is our setup:

- Dual LVDS channel connected on both LVDS (using ldb=spl0) with 1920x1080 resolution

- HDMI connected on the HDMI with 1920x1080 resolution

With this setup, we are able to display 2 full HD resolutions (1920x1080) images side by side.

Our goal is to have both displays show the same content without having to run same application on both displays.

Is it possible to have an LVDS dual channel and an HDMI display the same thing ?

Thank you!

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Charles

in theory this is possible, however BSPs do not support this feature.

In particular since lvds and hdmi use different formats (RGB666 and RGB24)

source code modifications are needed.

Best regards

igor

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rizwanm
Contributor II

HI ,

Could you please tell what changes should be done in linux 4.1.15  BSP igorpadykov  ?

Since we have tried many trial & error 

at the time only one get displayed 

Looking forward to your reply!

Br,
Rizwan M

imx6 dualplus/6quadplus‌ linux-4.1.15‌ i.mx bsp‌ dual channel lvds‌ imx6q lvds‌ dualdisplay‌ imx-lvds-hdmi‌ lvds+hdmi‌

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igorpadykov
NXP TechSupport
NXP TechSupport

one can look at

i.mx6q Enable Dual Display of Ubuntu 

Best regards
igor

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rizwanm
Contributor II

Hi igorpadykov

I have tried X11 Server is not starting ..

We are using Linux 4.1.15 BSP with X11 Server


Could you please help is any  other way to display same content on LVDS with HDMI 

Br,
Rizwan M

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