(Originally posted here: viewtopic.php?t=13318)
Hello,
Since Kernel version 4.20, I am not able to plug any USB device on my Rock64 board. If I restore a snapshot having the previous kernel version (4.19) everything works fine.
To be sure that the problem comes from the kernel, I prepared a completely fresh install of Archlinuxarm. On the latest provided image (http://os.archlinuxarm.org/os/ArchLinux ... est.tar.gz), the kernel version is 4.19 . I setup pacman to ignore linux-aarch64 package in /etc/pacman.conf and did a full update. I then rebooted. Everything worked fine (usb drives are here, and my USB DVB-T adapter also).
Then, I upgraded the kernel only to 4.20 and rebooted. And I can't see disks in /dev directory. My USB DVB-T adapter is not here either. I unplugged them and replugged, by following the output of "journalctl -f", but nothing happens. I also noticed that my 2.5" usb drive is not even powered. It is like USB ports just don't work at all.
Is it a known issue ? Is someone else experience that problem ? What can I do to diagnose this problem further ?