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?
did you try to use the command:
echo "0" > /sys/class/graphics/fb2/blank.
when the board boot up, try to use this command