Arch Linux

hiaqua

Member

Registered: 2018-11-16

Posts: 2

[SOLVED] USB devices not working if connected after booting

If I connect a USB device before booting then it works fine, but if I try to connect it after booting it nothing happens.

dmesg -w

doesn't show anything when I plug in anything.

Last edited by hiaqua (2022-10-25 07:08:09)

d.ALT

Member

Registered: 2019-05-10

Posts: 959

Re: [SOLVED] USB devices not working if connected after booting

If I connect a USB device

"a" stands for specific USB or any USB?
Are you running dmesg with root permissions?

$ sudo dmesg -w

or

# dmesg -w

If I connect a USB device before booting then it works fine

Please post the outputs of:

# lsusb -vt

# journalctl --no-pager --system -b0

Last edited by d.ALT (2022-10-24 20:53:09)

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hiaqua

Member

Registered: 2018-11-16

Posts: 2

Re: [SOLVED] USB devices not working if connected after booting

I've found the source of the problem, it was that I had tlp installed, after removing it USB works perfectly, thanks for your help.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,261

Re: [SOLVED] USB devices not working if connected after booting

If your controller has a problem with USB autosuspend you can simply configure that: https://wiki.archlinux.org/title/TLP#USB_autosuspend