BeagleBone Black & BB-View Demo - I Moustache You a Question

RE: BeagleBone Black & BB-View Demo - I Moustache You a Question

Former Member — Tue, 09 Jun 2015 16:21:40 GMT

Hi Guys & Matt,

I followed you instructions to the tee & can't get the BB-View to work. I am using the latest Debian release (03/15).

The BBB boots fine. LED0/LED1 on the LCD are both lit. Nothing else happens. No backlight.

Any suggestions would be gratefully accepted!

Thanks, Dave

RE: BeagleBone Black & BB-View Demo - I Moustache You a Question

lotusf33t — Mon, 01 Jun 2015 01:00:19 GMT

Matt:

I am not sure if these patches still work with exactly these commands. Here is my experience with recent Debian build (2015-03-01) - dtbs directory sits like /boot/dtbs/3.8.13-bone70, not underneath uboot like boot/uboot/dtbs.

Do I modify the commands to suit like below, or do I create the dtbs directory under uboot and use the exact commands?

<code>

mkdir /media/udisk

mount /dev/sda1 /media/udisk

cp -f /media/udisk/zImage /boot/uboot ##this command seems suspicious at this point... [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-3b20240b-1825-486a-8fbe-ffbc139cd07b/contentimage_5F00_2.png:16:16]

cp -f /media/udisk/*.dtb /boot/dtbs/3.8.13-bone70 ##this is where dtbs are right now, after re-flashing from scratch to fix the messed up HDMI colors since the LCD never came up...

tar -xvf /media/udisk/kernel_modules.tar.gz -C /

cp -f /media/udisk/xorg.conf /etc/X11/

sync

</code>

In the manual for BB View LCD the tar -xvf line has some extra characters near the end that are confusing and incorrect, as well. This is the "BB VIEW User Manual V3.pdf"

Then reboot...and

<code>

cd /boot/dtbs/3.8.13-bone70

cp am335x-boneblack-lcd7.dtb am335x-boneblack.dtb

...reset cals if necessary...

</code>

Does this seem correct to you at this point?

Regards,

Jack

RE: BeagleBone Black & BB-View Demo - I Moustache You a Question

PaulRowntree — Mon, 10 Nov 2014 14:35:29 GMT

Matt, the filenames for the Angstrom patches appear to be the same as these Debian filenames. Do we follow the same procedures for Angstrom? I have an older RevB board ...

RE: BeagleBone Black & BB-View Demo - I Moustache You a Question

PaulRowntree — Sun, 09 Nov 2014 15:36:31 GMT

On the section describing the extra patch steps needed for the 7" screen, I believe that Line 02 should read

cp am335x-boneblack-lcd7.dtb am335x-boneblack.dtb

instead of

cp am335x-boneblack-lcd4.dtb am335x-boneblack.dtb

I don't know where the -lcd4 file would get used according to these instructions.

Also, note that the HDMI colour scheme gets scrambled in order to fix the LCD colour problem.