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i.MX6QP SDB - Enable LVDS0 support

Question asked by devika R on Feb 7, 2019
Latest reply on Feb 14, 2019 by devika R


We've set-up the Yocto BSP with 4.9.11-1.0 version and are able to flash the images to the eMMC via USB.

We have the requirement to set-up dual display HDMI & LVDS0 on the i.MX6QP. 


The HDMI display was enabled by using the below command and it worked fine. 

setenv displayinfo 'video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24 video=mxcfb1:dev=ldb,if=RGB666'


However, the LVDS0 display in isolation doesn't seems to be working even after using the below u-boot environment set-up -

setenv displayinfo 'video=mxcfb0:dev=ldb,if=RGB666'

We've connected the external LCD having the 640x460 resolution with the 18-bit interface. 

The above command is a reference from i.MX Linux® User's Guide, Rev. L4.9.11_1.0.0   


Are we missing any other steps necessary to enable this feature? 

I believe it is a tested feature and must work, hopefully it is just the configuration issue. 


Please help us with the details/steps needed to use this feature (LVDS0)