ThoLag

Thank you, I am actually using the original Raspberry PI power adapter that delivers 5.1V/2A via MicroUSB. I considered power issues, but the problem was so consistent and once the USB devices work they never failed in the further days of uptime where I experienced power problems to be more randomly. At that point, Raspberry has the benefit of showing undervoltage via the rainbow-overlay. But I will definately give it a try via GPIO and give you a feedback if it makes any difference.

Hi! I've got a problem getting USB devices to work with Armbian 22.02.1 (Tinkerboard_bullseye_current_5.15.25) - fresh install, bare image without any modifications. While a simple usb keyboard would more or less work, plugging some devices seems to crash the built-in USB hub. This happens in "cold"-plug as in "hot"-plug, whereas there are slight differences. Booting up without any USB device attached: lsusb Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 002: ID 0bda:49f6 Realtek Semiconductor Corp. USB Audio Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub After hot-plugging in any USB device the Genesis USB Hub has disappeared: lsusb Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 002: ID 0bda:49f6 Realtek Semiconductor Corp. USB Audio Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub dmesg has these two entries: [ 131.740593] usb 1-1: USB disconnect, device number 2 [ 134.624629] usb usb1-port1: connect-debounce failed So far what I tried to find out a little more: USB Card Readers and Datasticks work if "cold" plugged (=before power on), but crash on hotplug. USB Card Readers crash if hotplugged or "cold" plugged, removed and re-attached. USB stays crashed if the system reboots without a power off in between. Always! Huawei Surfsticks that do a modeswitch (e.g. USB_MODESWITCH etc. to get from storage- to network-mode) crash the system. Maybe modeswitch triggers the same problem as hotplug? I tried Tinkerboard R2.0 and S R2.0 - and serveral of each from my collection. Same problem with every board. Does anyone have more information on or suggestions how to analyse these issues? I read hotplug was in issue in 2018, does this remain?