AnsweredAssumed Answered

how to display lvds + hdmi at the same time on ubuntu ?

Question asked by li yu on Jul 9, 2014
Latest reply on Dec 16, 2014 by Kavita Mathur

Our customer board(i.MX6Q SDB) have dual channel 1080pLVDS panel + HDMI  port, but same time we could use one port  in linux system only.

 

os : ubuntu     "L3.0.35_4.1.0_130816_source"

 

uboot para:

1.

setenv bootargs_mmc 'setenv bootargs ${bootargs} root=/dev/mmcblk0p1 rootwait rw video=mxcfb0:dev=ldb,LDB-1080P60,if=RGB24,bpp=32 ldb=spl0 video=mxcfb1:dev=hdmi,1920x1080M@60,bpp=32 video=mxcfb2:off'

We could get lvds output, but hdmi does't output.

2.

setenv bootargs_mmc 'setenv bootargs ${bootargs} root=/dev/mmcblk0p1 rootwait rw video=mxcfb0:dev=hdmi,1920x1080M@60,bpp=32 video=mxcfb1:dev=ldb,LDB-1080P60,if=RGB24,bpp=32 ldb=spl0 video=mxcfb2:off

We could get hdmi output, lvds does't output.

3.

android JB

we could get two port output at same time.

 

So, how can i get lvds and hdmi output sametime when i use ubuntu OS?

 

how set xorg.conf to support LVDS + HDMI at the same time .

 

I do follow the link below and found that the effect is still the same

 

i.mx6q Enable Dual Display of Ubuntu

 

how can i get lvds and hdmi output sametime when i use ubuntu OS?   

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