Serial device not added correctly

[baltika_no_9]

is plugged. otherwise how could it see the lsusb command?
It's connected through a hub though, I think that's the problem. but the same hub with openplotter 2 worked fine

You are correct, lsusb can see it. I missed that. It could be the hub but I don't see why, the OS can see the device so OP should do the same, strange!

If I start my system without the Ublox and I plug it in and then, immediately after, issue the command

Code:

tail -30 /var/log/syslog

I see the following:

Code:

Jul 14 11:28:49 bobby kernel: [  111.492366] usb 1-1.3: new full-speed USB device number 4 using xhci_hcd
Jul 14 11:28:49 bobby kernel: [  111.596800] usb 1-1.3: New USB device found, idVendor=1546, idProduct=01a7, bcdDevice= 1.00
Jul 14 11:28:49 bobby kernel: [  111.596838] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Jul 14 11:28:49 bobby kernel: [  111.596855] usb 1-1.3: Product: u-blox 7 - GPS/GNSS Receiver
Jul 14 11:28:49 bobby kernel: [  111.596870] usb 1-1.3: Manufacturer: u-blox AG - www.u-blox.com
Jul 14 11:28:49 bobby mtp-probe: checking bus 1, device 4: "/sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3"
Jul 14 11:28:49 bobby mtp-probe: bus: 1, device: 4 was not an MTP device
Jul 14 11:28:49 bobby kernel: [  111.676731] cdc_acm 1-1.3:1.0: ttyACM0: USB ACM device
Jul 14 11:28:49 bobby kernel: [  111.676961] usbcore: registered new interface driver cdc_acm
Jul 14 11:28:49 bobby kernel: [  111.676977] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
Jul 14 11:28:49 bobby mtp-probe: checking bus 1, device 4: "/sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3"
Jul 14 11:28:49 bobby mtp-probe: bus: 1, device: 4 was not an MTP device
Jul 14 11:28:49 bobby systemd[1]: Created slice system-gpsdctl.slice.
Jul 14 11:28:49 bobby systemd[1]: Starting Manage ttyACM0 for GPS daemon...
Jul 14 11:28:49 bobby gpsdctl: gpsd_control(action=add, arg=/dev/ttyACM0)
Jul 14 11:28:49 bobby gpsdctl: reached a running gpsd
Jul 14 11:28:49 bobby systemd[1]: Starting GPS (Global Positioning System) Daemon...
Jul 14 11:28:49 bobby systemd[1]: Started GPS (Global Positioning System) Daemon.
Jul 14 11:28:49 bobby systemd[1]: Finished Manage ttyACM0 for GPS daemon.

Do you get anything like that?