On Sat, Jun 6, 2026 at 9:04 PM Chris Ramsden <[email protected]> wrote: > > On Sat, 2026-06-06 at 16:07 -0500, nwe wrote: > > > > On 6/6/26 2:38 PM, Chris Ramsden wrote: > > > > > > > > I have just noticed that this computer has stopped recognising USB > > > thumbdrives. > > > > > In that situation my first impulse would be to open a terminal and > > run > > sudo journalctl -f > > then plug in the offending drive and watch for errors > > Or > > sudo dmesg | tail > > right after plugging an offending drive might catch something > > > > > > > > Next I might open gparted and investigate from that angle. > > > Aha! > > Jun 06 22:43:16 Zenbook kernel: usb 3-3.2: New USB device found, > idVendor=03f0, idProduct=3407, bcdDevice= 1.00 > Jun 06 22:43:16 Zenbook kernel: usb 3-3.2: New USB device strings: > Mfr=1, Product=2, SerialNumber=3 > Jun 06 22:43:16 Zenbook kernel: usb 3-3.2: Product: v135w > Jun 06 22:43:16 Zenbook kernel: usb 3-3.2: Manufacturer: HP > Jun 06 22:43:16 Zenbook kernel: usb 3-3.2: SerialNumber: 00000000000499 > Jun 06 22:43:16 Zenbook kernel: usb 3-3.2: Device is not authorized for > usage > > But gparted can't see this drive. > > Also, there are many repeats of "Device is not authorized for usage" > for stuff that does appear to be working, e.g. the ethernet port and my > SSDs.
Have you searched for the terms Debian + USB + "Device is not authorized for usage"? Do you have USBGuard installed? Jeff
