USB not working properly after reboot
Posted: Sun Jun 16, 2019 11:47 am
I am using a FITLET2-CJ3455, SN 1181129-02668 with Linux Mint 19.1 Tessa.
There are 4 USB sockets on the fitlet. What's plugged into them is: beside the HDMI port, a keyboard and a mouse; beside the audio socket a 4TB hard drive; beside the power button a Patriot 7-port USB3.0 hub,
https://www.info.patriotmemory.com/usb7porthub
Yesterday I did an update, and since there were a lot of packages being updated, and services restarted, I rebooted the PC. Call me superstitious if you like but I do think the occasional reboot is worth doing, especially if glibc or the linux kernel gets updated. On reboot the devices plugged into the USB hub were not recognised. I power-cycled. A memory stick that was plugged into the hub at reboot was recognised, but when I plugged another device in, the new one wasn't. I did a
dmesg | tail
and it contained a suggestion to power-cycle. Unfortunately I didn't record the dmesg. I unplugged everything from all the USB ports on the fitlet, pulled the power, plugged it back in, and after reboot I could plug everything in again.
I recall that I used to have the mouse and keyboard plugged in the front, and they used to have problems, but that's "anecdotal", it's a couple of months ago and I don't trust my memory 100% back that far. Plugging them in the back seemed to work.
Fortunately I don't reboot this machine very often. (That's why I got a passively-cooled low-power-consumption PC -- so it could be permanently on, I can ssh in when I'm not at home and so on ) But I do reboot sometimes. I bought a VESA panel to fix the computer to the back of the monitor, and unplugging all the USB things every time I want to reboot would be a pain. I had a look at the errata and ECNs, and I didn't see anything like this, but I want to ask anyway whether this is a known thing and if there is a workaround?
There are 4 USB sockets on the fitlet. What's plugged into them is: beside the HDMI port, a keyboard and a mouse; beside the audio socket a 4TB hard drive; beside the power button a Patriot 7-port USB3.0 hub,
https://www.info.patriotmemory.com/usb7porthub
Yesterday I did an update, and since there were a lot of packages being updated, and services restarted, I rebooted the PC. Call me superstitious if you like but I do think the occasional reboot is worth doing, especially if glibc or the linux kernel gets updated. On reboot the devices plugged into the USB hub were not recognised. I power-cycled. A memory stick that was plugged into the hub at reboot was recognised, but when I plugged another device in, the new one wasn't. I did a
dmesg | tail
and it contained a suggestion to power-cycle. Unfortunately I didn't record the dmesg. I unplugged everything from all the USB ports on the fitlet, pulled the power, plugged it back in, and after reboot I could plug everything in again.
I recall that I used to have the mouse and keyboard plugged in the front, and they used to have problems, but that's "anecdotal", it's a couple of months ago and I don't trust my memory 100% back that far. Plugging them in the back seemed to work.
Fortunately I don't reboot this machine very often. (That's why I got a passively-cooled low-power-consumption PC -- so it could be permanently on, I can ssh in when I'm not at home and so on ) But I do reboot sometimes. I bought a VESA panel to fix the computer to the back of the monitor, and unplugging all the USB things every time I want to reboot would be a pain. I had a look at the errata and ECNs, and I didn't see anything like this, but I want to ask anyway whether this is a known thing and if there is a workaround?