Noob to Ubuntu... I have a similar problem with a U.S. Robotics USR5637 modem. lsusb and usb-devices both show the device, and dmesg shows it being recognized, however it does not show up in /dev as ttyACM*. Running 21.10 on a Raspberry Pi 4. The device works as expected with 20.04.3 LTS also on a Pi 4. I tried Henrik Dahle's work around of reinstalling fuse simply because he had luck with it, but no joy. The device is also not created with it installed during a reboot.
lsusb: Bus 001 Device 008: ID 0baf:0303 U.S. Robotics USR5637 56K Faxmodem usb-devices: T: Bus=01 Lev=04 Prnt=06 Port=01 Cnt=01 Dev#= 8 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=02(commc) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=0baf ProdID=0303 Rev=02.00 S: Manufacturer=U.S.Robotics S: Product=USB Modem S: SerialNumber=0000002 C: #Ifs= 2 Cfg#= 2 Atr=80 MxPwr=360mA I: If#=0x0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=02 Prot=01 Driver=(none) I: If#=0x1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=(none) dmesg: [ 127.376952] usb 1-1.2.4.1: new high-speed USB device number 7 using xhci_hcd [ 127.585699] usb 1-1.2.4.1: New USB device found, idVendor=0baf, idProduct=0303, bcdDevice= 2.00 [ 127.585739] usb 1-1.2.4.1: New USB device strings: Mfr=1, Product=2, SerialNumber=10 [ 127.585757] usb 1-1.2.4.1: Product: USB Modem [ 127.585771] usb 1-1.2.4.1: Manufacturer: U.S.Robotics [ 127.585784] usb 1-1.2.4.1: SerialNumber: 0000002 [ 127.747138] kauditd_printk_skb: 518 callbacks suppressed [ 127.747159] audit: type=1400 audit(1646439492.316:597): apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.2/1-1.2.4/1-1.2.4.1/busnum" pid=2810 comm="ThreadPoolForeg" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0 [ 127.747191] audit: type=1400 audit(1646439492.316:598): apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.2/1-1.2.4/1-1.2.4.1/devnum" pid=2810 comm="ThreadPoolForeg" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1946525 Title: Removable media are not mounted automatically To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/udisks2/+bug/1946525/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
