i.MX ProcessorsのトピックRe: iMX6 Android 4.2.2 HDMI problem

iMX6 Android 4.2.2 HDMI problem

ppatierno — Tue, 26 Nov 2013 10:22:50 GMT

Hello,

I downloaded android_jb4.2.2_1.1.0 with all source code and

patches and I built an image for our Sabre SDB board.

I changed the kernel command line in this way :

BOARD_KERNEL_CMDLINE := console=ttymxc0,115200

androidboot.console=ttymxc0 vmalloc=400M init=/init

video=mxcfb0:dev=hdmi,1920x1080M@60 video=mxcfb1:off

video=mxcfb2:off androidboot.hardware=freescale fbmem=28M

to support HDMI video (not LVDS as default command line in the

same file).

When operating system starts, kernel boots and Android boots

but on the display the image is as picture atteched.

Why ?

Thanks,

Paolo Patierno

Re: iMX6 Android 4.2.2 HDMI problem

Bio_TICFSL — Mon, 02 Dec 2013 20:30:00 GMT

Hi,

I can not see the kind of Monitor you are using but it looks like the resolution is not suitable for it. However, pleae try this steps in another hdmi monitor to make sure it works.

In the U-Boot prompt, set the U-Boot environment variables as shown below:

U-Boot > setenv bootcmd booti mmc3

U-Boot > setenv bootargs console=ttymxc0,115200 androidboot.console=ttymxc0 vmalloc=400M

init=/init video=mxcfb0:dev=hdmi,1920x1080M@60,bpp=32 video=mxcfb1:off video=mxcfb2:off

fbmem=28M androidboot.hardware=freescale

U-Boot > saveenv

Regards