hello everyone

 

my Orange Pi A20 does not detect any USB device with the current versions of Stretch or Bionic, but works fine with Wheezy

I had try with  a printer,  a scanner, or USB stick. When something is connected, nothing appears in dmesg or lsusb.

 

Yes...yes...I've been reading the troubleshooting FAQs and Google it for an answer.
Change power supply and SD card, etc.

But a printer or scanner doesn't consume too much power from the USB, does it?

 

in a last effort I went back to the old Debian Wheezy (downloaded from orangepi.org) and everything works fine.
 
 Any help with that?
Could it be a kernel parameter or module?

 

Edited February 24, 20197 yr by Oscar_P

armbianmonitor -u   tells the reader all the details about your Installation, like Kernel-Version and much more

18 hours ago, Oscar_P said:

Orange Pi A20 does not detect any USB device with the current versions of Stretch or Bionic

We don't support this board any more ... IIRC you only need to change DT file. Edit /boot/armbianEnv.txt and add:
 

fdtfile=sun7i-a20-orangepi.dtb

+ reboot.

18 hours ago, Oscar_P said:

I went back to the old Debian Wheezy

Rather don't use this board at all if this is your only option.

Thanks!

1 hour ago, Bï Ĺý said:

USB ports won't work, but if I restart the computer, the light on the flash drive starts blinking and I can mount the flash drive.

Some people faced similar behavior several months ago, but they figured that either doing "lssub -vvv" and/or plugging another USB devices first would workaround the issue, USB doing some kind of waking up.