4D Systems 4DCAPE-70T Not displayed.

hi,

I connected the bbb board and the 4dcape-70 display device.
When the bbb board booting, it is not displayed.

I added the following to the file.(uEnv.txt )
→ dtb=am335x-boneblack-4dcape-70t.dtb

There is no file(am335x-boneblack-4dcape-70t.dtb) called dtd in the folder below. Is that the cause?
→ /boot/dtbs/4.9.20-ti-r27/

Or are there other causes?

My bbb board environment.

  • Kernel : 4.9.20-ti-r27
  • RootfIle : Ubuntu 16.04 LTS

Thank you.

hi,

I connected the bbb board and the 4dcape-70 display device.
When the bbb board booting, it is not displayed.

I added the following to the file.(uEnv.txt )
-> dtb=am335x-boneblack-4dcape-70t.dtb

don't set that.. (it was only for v3.14.x)

There is no file(am335x-boneblack-4dcape-70t.dtb) called dtd in the folder
below. Is that the cause?
  -> /boot/dtbs/4.9.20-ti-r27/

Or are there other causes?

My bbb board environment.
- Kernel : 4.9.20-ti-r27
- RootfIle : Ubuntu 16.04 LTS

switch to u-boot overlays:

http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Overlays

and the 4dcape-70t will be auto detected by u-boot

Regards,

Please share your /boot/uEnv.txt

Regards,

http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Overlays

Use:

/boot/uEnv.txt

uname_r=4.9.20-ti-r27
enable_uboot_overlays=1

and make sure you don't have a /uEnv.txt file

Regards,

u-boot overlays need a new u-boot, which you've already installed..
Remove the /uEnv.txt as that is for compatibility with ancient
versions of u-boot

Regards,