I am using Ubuntu 24.04 LTS.
After running journalctl -b -p3 I got the following errors: Failed to find module ‘ubserial vendor=0x12d1 product=0x1506’ and Failed to find module 'ATTRS{idVendor}==“12d1”, ATTRS{idProduct}==“1506”.
I think that it is related with Huawei internet modem stick? I had it once but I am not using it anymore as it failed to connect to the internet (although the internet service provider confirmed that my modem was connected to their system).
Run grep serial /etc/modprobe.d/* I wonder if there is a udev rule somewhere also as the second error looks that way. Then the error might be because there isn’t a module named ubserial but there is one named usbserial