Hi, First I would love to introduce myself. My name is Joël, I work on GSequencer a audio/MIDI sequencer. Can anyone provide me a working kernel configuration I can use with my 4G LTE modem? Sierra Wireless EM7455 Qualcomm Snapdragon X7 LTE-A The USB driver registers for the Qualcomm USB serial modem qcserial. It worked once, but not anymore. ~~~~ ModemManager[1045]: <info> ModemManager (version 1.18.12) starting in system bus... ModemManager[1045]: [qrtr] socket lookup from 1:0 ModemManager[1045]: [qrtr] initial lookup finished ModemManager[1045]: opening device... ModemManager[1045]: cannot connect to proxy: Could not connect: Connection refused ModemManager[1045]: spawning new mbim-proxy (try 1)... ModemManager[1045]: [/dev/cdc-wdm0] Read max control message size from descriptors file: 4096 ModemManager[1045]: <info> [base-manager] couldn't check support for device '/sys/devices/pci0000:00/0000:00:1c.0/0000:03:00.0': not supported by any plugin ModemManager[1045]: <info> [base-manager] couldn't check support for device '/sys/devices/pci0000:00/0000:00:1f.6': not supported by any plugin ModemManager[1045]: <info> [cdc-wdm0/mbim] MBIM device is not QMI capable ModemManager[1045]: [/dev/cdc-wdm0] channel destroyed ModemManager[1045]: <info> [device /sys/devices/pci0000:00/0000:00:14.0/usb1/1-5] creating modem with plugin 'sierra' and '2' ports ModemManager[1045]: <info> [base-manager] modem for device '/sys/devices/pci0000:00/0000:00:14.0/usb1/1-5' successfully created ModemManager[1045]: opening device... ModemManager[1045]: [/dev/cdc-wdm0] Read max control message size from descriptors file: 4096 ModemManager[1045]: [/dev/cdc-wdm0] Opening device with flags 'version-info, proxy, mbim, expect-indications'... ModemManager[1045]: [/dev/cdc-wdm0] created endpoint ModemManager[1045]: [/dev/cdc-wdm0] creating MBIM device... ModemManager[1045]: [/dev/cdc-wdm0] MBIM device created ModemManager[1045]: [/dev/cdc-wdm0] opening MBIM device... ModemManager[1045]: opening device... ModemManager[1045]: [/dev/cdc-wdm0] Read max control message size from descriptors file: 4096 ModemManager[1045]: [/dev/cdc-wdm0] MBIM device open ModemManager[1045]: [/dev/cdc-wdm0] Checking version info (15 retries)... ModemManager[1045]: [/dev/cdc-wdm0] QMI Device supports 33 services: ModemManager[1045]: [/dev/cdc-wdm0] ctl (1.5) ModemManager[1045]: [/dev/cdc-wdm0] wds (1.67) ModemManager[1045]: [/dev/cdc-wdm0] dms (1.14) ModemManager[1045]: [/dev/cdc-wdm0] nas (1.25) ModemManager[1045]: [/dev/cdc-wdm0] qos (1.6) ModemManager[1045]: [/dev/cdc-wdm0] wms (1.10) ModemManager[1045]: [/dev/cdc-wdm0] auth (1.3) ModemManager[1045]: [/dev/cdc-wdm0] at (1.2) ModemManager[1045]: [/dev/cdc-wdm0] voice (2.1) ModemManager[1045]: [/dev/cdc-wdm0] cat2 (2.24) ModemManager[1045]: [/dev/cdc-wdm0] uim (1.45) ModemManager[1045]: [/dev/cdc-wdm0] pbm (1.4) ModemManager[1045]: [/dev/cdc-wdm0] test (1.0) ModemManager[1045]: [/dev/cdc-wdm0] loc (2.0) ModemManager[1045]: [/dev/cdc-wdm0] sar (1.0) ModemManager[1045]: [/dev/cdc-wdm0] ts (1.0) ModemManager[1045]: [/dev/cdc-wdm0] tmd (1.0) ModemManager[1045]: [/dev/cdc-wdm0] wda (1.16) ModemManager[1045]: [/dev/cdc-wdm0] csvt (1.1) ModemManager[1045]: [/dev/cdc-wdm0] coex (1.0) ModemManager[1045]: [/dev/cdc-wdm0] pdc (1.0) ModemManager[1045]: [/dev/cdc-wdm0] rfrpe (1.0) ModemManager[1045]: [/dev/cdc-wdm0] dsd (1.0) ModemManager[1045]: [/dev/cdc-wdm0] ssctl (1.0) ModemManager[1045]: [/dev/cdc-wdm0] unknown [0x2e] (1.0) ModemManager[1045]: [/dev/cdc-wdm0] unknown [0x30] (1.0) ModemManager[1045]: [/dev/cdc-wdm0] unknown [0x31] (1.0) ModemManager[1045]: [/dev/cdc-wdm0] unknown [0x36] (1.0) ModemManager[1045]: [/dev/cdc-wdm0] rms (1.0) ModemManager[1045]: [/dev/cdc-wdm0] unknown [0xf0] (1.0) ModemManager[1045]: [/dev/cdc-wdm0] unknown [0xf3] (1.0) ModemManager[1045]: [/dev/cdc-wdm0] unknown [0xf5] (1.0) ModemManager[1045]: [/dev/cdc-wdm0] unknown [0xf6] (1.0) ModemManager[1045]: [/dev/cdc-wdm0] Enabling QMI indications via MBIM... ModemManager[1045]: [/dev/cdc-wdm0] enabled QMI indications via MBIM ModemManager[1045]: <info> [modem0/cdc-wdm0/mbim] MBIM device is QMI capable ModemManager[1045]: [/dev/cdc-wdm0] Allocating new client ID... ModemManager[1045]: [/dev/cdc-wdm0] Registered 'dms' (version 1.14) client with ID '3' ModemManager[1045]: [/dev/cdc-wdm0] Allocating new client ID... ModemManager[1045]: [/dev/cdc-wdm0] Registered 'nas' (version 1.25) client with ID '4' ModemManager[1045]: [/dev/cdc-wdm0] Allocating new client ID... ModemManager[1045]: [/dev/cdc-wdm0] Registered 'loc' (version 2.0) client with ID '1' ModemManager[1045]: [/dev/cdc-wdm0] Allocating new client ID... ModemManager[1045]: [/dev/cdc-wdm0] Registered 'pdc' (version 1.0) client with ID '1' ModemManager[1045]: [/dev/cdc-wdm0] Allocating new client ID... ModemManager[1045]: [/dev/cdc-wdm0] Registered 'uim' (version 1.45) client with ID '3' ModemManager[1045]: <info> [modem0] QMI-based capability and mode switching support enabled ModemManager[1045]: <warn> [modem0/sim0] couldn't load list of emergency numbers: No AT port available to run command ModemManager[1045]: <warn> [modem0] couldn't load UE mode of operation for EPS: No AT port available to run command ModemManager[1045]: <warn> [modem0] couldn't load initial EPS bearer settings: LTE attach status info is unsupported ModemManager[1045]: <warn> [modem0] couldn't open ports during Modem SIM hot swap enabling: Couldn't get primary port ModemManager[1045]: <info> [modem0] state changed (unknown -> disabled) ModemManager[1045]: <info> [modem0] state changed (disabled -> enabling) ModemManager[1045]: <warn> [modem0] Failure ModemManager[1045]: <warn> [modem0] Failure ModemManager[1045]: <warn> [modem0] couldn't enable interface: 'Invalid transition' ModemManager[1045]: <info> [modem0] state changed (enabling -> disabled) ~~~~ regards, Joël
