I read through quite some forums, but none of the mentioned solutions could help me.
I have a USB (64GB), when I plug it in, it is recognized by lsusb (/dev/sdb, no /dev/sdb1, hence I can't mount it), dmesg, lsblk, etc. Initially it gave an error in dmesg when plugging it in, but after some research I had to make a change for high speed USB devices with: echo -1> /sys/module/usbcore/parameters/autosuspend. After checking if that worked, I made it permanent by creating a file usbcore in /etc/modprobe.d with the following line: options usbcore autosuspend=-1.
I checked with a 32GB and 128GB USB, which work fine.
I am using Ubuntu 22.04 on a Toshiba TECRA Z50-A PT544E-011005DU. See below the results of the various things I tried:
lsusb: lsusb output
lsblk (notice size 0): lsblk output
sudo fdisk -l (it doesn't show here): fdisk output
dd if=/dev/null of=/dev/sdb: dd output
dmesg: dmesg output
sudo dmesg | grep sdb: dmesg grep sdb output
sudo parted -l: parted -l output
I tried mkusb as well, to remove the first bit and I tried to whipe the drive completely. Both give the message that media is not found.
gparted doesn't show the drive in the first place.
This is the information which was requested for other questions. Let me know if you need more information.
I hope someone has any more ideas... or maybe my USB is just dead... :-)