4DCAPE-43T - At poweroff, screen remains ON

[dpana]

Hello,
I am using a 4DCAPE-43T connected to a beaglebone.
When I send "poweroff" command, the screen remains powered as you can see in the attachment.
How can completely power off the screen?



Thank you, Dragos.

[Mark Kevin]

Good day dpana,

Have you tried using "shutdown"?

[dpana]

Hello Kevin,
Tried with:

shutdown -h now
shutdown -P

...same behavior.

[Mark Kevin]

1.) What BBB image are you using for this cape?
2.) Have you also performed the solder bridge on the cape?

I'll try to replicate the issue here on my end, but using the latest image from BBB.org, this doesnt occur.
Does the display start up and boot correctly?

[dpana]

1. Last image from https://beagleboard.org/latest-images
2. No soldering performed
3. The display starts correctly, touchscreen works.

Edit: Cape HW revision 2.1

[Mark Kevin]

Hi dpana,

I tried used the same procedure as you did.

However, I did not experience the same scenario you had, the display module shuts off nicely, but as long as my BBB is connected (external 5v) to a power source, the display will boot up again.

Have you tried using this image?
Debian 9.1 2017-08-31 4GB SD LXQT
http://debian.beagleboard.org/images...-31-4gb.img.xz

I suggest as soon as the LED lights on the BBB turns of, you can immediately disconnect from the power source.

[dpana]

Same with recommended image.
Can I do anything for display not to boot up again after poweroff?