http://bugzilla.opensuse.org/show_bug.cgi?id=1185710 Bug ID: 1185710 Summary: Kernel version 5.3.18-lp152.72.1 breaks mobile broadband: cdc_acm 2-4:1.3: acm_port_activate - usb_submit_urb(ctrl irq) failed Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.2 Hardware: x86-64 OS: openSUSE Leap 15.2 Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs@opensuse.org Reporter: oleksandr.ostrenko@tu-dresden.de QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- After upgrading kernel-default to 5.3.18-lp152.72.1 my mobile broadband card is no longer recognized by the NetworkManager. It works again when booting with any previous version of kernel-default. # lsusb -d 0bdb:1926 Bus 002 Device 002: ID 0bdb:1926 Ericsson Business Mobile Networks BV H5321 gw Mobile Broadband Module Relevant journal entries: kernel: cdc_wdm 2-4:1.5: cdc-wdm0: USB WDM device kernel: cdc_wdm 2-4:1.8: cdc-wdm1: USB WDM device kernel: usbcore: registered new interface driver cdc_wdm kernel: cdc_acm 2-4:1.1: ttyACM0: USB ACM device kernel: cdc_acm 2-4:1.3: ttyACM1: USB ACM device kernel: cdc_ncm 2-4:1.6: MAC-Address: XX:XX:XX:XX:XX:XX kernel: cdc_ncm 2-4:1.6 wwan0: register 'cdc_ncm' at usb-0000:00:14.0-4, Mobile Broadband Network Device, XX:XX:XX:XX:XX:XX kernel: usbcore: registered new interface driver cdc_ncm kernel: cdc_acm 2-4:1.9: ttyACM2: USB ACM device kernel: usbcore: registered new interface driver cdc_acm kernel: cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters kernel: usbcore: registered new interface driver cdc_mbim systemd-udevd[510]: Using default interface naming scheme 'v245'. systemd-udevd[510]: ethtool: autonegotiation is unset or enabled, the speed and duplex are not writable. kernel: cdc_ncm 2-4:1.6 wwp0s20u4i6: renamed from wwan0 ... kernel: cdc_acm 2-4:1.3: acm_port_activate - usb_submit_urb(ctrl irq) failed kernel: cdc_acm 2-4:1.1: acm_port_activate - usb_submit_urb(ctrl irq) failed ... ModemManager[1508]: <info> [device /sys/devices/pci0000:00/0000:00:14.0/usb2/2-4] creating modem with plugin 'Ericsson MBM' and '6' ports ModemManager[1508]: <warn> Could not grab port (usbmisc/cdc-wdm1): 'Cannot add port 'usbmisc/cdc-wdm1', unsupported' ModemManager[1508]: <warn> Could not grab port (usbmisc/cdc-wdm0): 'Cannot add port 'usbmisc/cdc-wdm0', unsupported' dbus-daemon[1960]: [session uid=1000 pid=1960] Activating service name='org.kde.ActivityManager' requested by ':1.23' (uid=1000 pid=2138 comm="/usr/lib64/libexec/org_kde_powerdevil ") ModemManager[1508]: <warn> Could not grab port (tty/ttyACM1): 'Cannot add port 'tty/ttyACM1', unhandled serial type' ModemManager[1508]: <warn> Could not grab port (tty/ttyACM0): 'Cannot add port 'tty/ttyACM0', unhandled serial type' ModemManager[1508]: <warn> Couldn't create modem for device '/sys/devices/pci0000:00/0000:00:14.0/usb2/2-4': Failed to find primary AT port -- You are receiving this mail because: You are on the CC list for the bug.