it seems like removing the "cdc_mbim" kernel module fixes the issue
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2110048 Title: Sierra cellular modem keeps resetting Status in linux package in Ubuntu: New Bug description: In Ubuntu 24.04 on Panasonic Toughpad FZG2-3 with Sierra EM7595 the Sierra modem seems to reset infinitely. I've found that running those 2 commands succeed about 90% of the time: sudo modprobe -r ucsi_acpi sudo mbimcli -d /dev/cdc-wdm* --query-device-caps --no-close --verbose Also checked on Ubuntu 22.04 - same issue but the issue is not fixed after running the lines above. I tried returning the module to the factory defaults, re-installing it's FW, and changing multiple settings using AT commands. I saw some issues in the dmesg and journalctl - see below. Looking forward for your reply, Asaf. ------------------------------------------------------------------- /etc/lsb-release: DISTRIB_ID=Ubuntu DISTRIB_RELEASE=24.04 DISTRIB_CODENAME=noble DISTRIB_DESCRIPTION="Ubuntu 24.04.2 LTS" ------------------------------------------------------------------- lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8564:4100 Transcend Information, Inc. USB2.1 Hub Bus 001 Device 003: ID 1199:c081 Sierra Wireless, Inc. Sierra Wireless EM7595 Mobile Broadband Adapter Bus 001 Device 004: ID 5986:11a0 Bison Electronics Inc. USB FHD Camera Bus 001 Device 005: ID 1546:01a9 U-Blox AG u-blox GNSS receiver Bus 001 Device 006: ID 2d1f:010f Wacom Taiwan Information Co. Ltd. ISD-V4 Bus 001 Device 007: ID 8087:0033 Intel Corp. AX211 Bluetooth Bus 001 Device 011: ID 046d:c534 Logitech, Inc. Unifying Receiver Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 002: ID 8564:4100 Transcend Information, Inc. USB3.1 Hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub ------------------------------------------------------------------- journalctl: May 04 12:28:19 ubuntu NetworkManager[2105]: <info> [1746361699.5757] manager: (cdc-wdm2): new Broadband device (/org/freedesktop/NetworkManager/Devices/168) May 04 12:28:19 ubuntu NetworkManager[2105]: <info> [1746361699.5759] device (cdc-wdm2): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external') May 04 12:28:19 ubuntu NetworkManager[2105]: <info> [1746361699.5761] device (cdc-wdm2): modem state 'enabling' May 04 12:28:19 ubuntu NetworkManager[2105]: <info> [1746361699.5763] device (cdc-wdm2): state change: unavailable -> disconnected (reason 'none', sys-iface-state: 'managed') May 04 12:28:19 ubuntu ModemManager[2154]: <msg> [modem164] state changed (disabled -> enabling) May 04 12:28:19 ubuntu ModemManager[2154]: <msg> [modem164] power state updated: on May 04 12:28:19 ubuntu ModemManager[2154]: <msg> [modem164] SIM identifier has changed: '###' -> '###' May 04 12:28:19 ubuntu ModemManager[2154]: <msg> [modem164] 3GPP packet service state changed (unknown -> attached) May 04 12:28:19 ubuntu ModemManager[2154]: <msg> [modem164] state changed (enabling -> enabled) May 04 12:28:19 ubuntu ModemManager[2154]: <msg> [modem164] state changed (enabled -> disabling) May 04 12:28:19 ubuntu ModemManager[2154]: <wrn> [modem164] couldn't reload extended signal information: No signal details given May 04 12:28:20 ubuntu ModemManager[2154]: <msg> [modem164] 3GPP packet service state changed (attached -> unknown) May 04 12:28:20 ubuntu NetworkManager[2105]: <info> [1746361700.0209] device (cdc-wdm2): state change: disconnected -> unmanaged (reason 'removed', sys-iface-state: 'removed') May 04 12:28:22 ubuntu ModemManager[2154]: <msg> [device /sys/devices/pci0000:00/0000:00:14.0/usb3/3-5] creating modem with plugin 'sierra' and '5' ports May 04 12:28:22 ubuntu ModemManager[2154]: <wrn> [plugin/sierra] could not grab port ttyUSB1: Cannot add port 'tty/ttyUSB1', unhandled port type May 04 12:28:22 ubuntu ModemManager[2154]: <wrn> [plugin/sierra] could not grab port ttyUSB0: Cannot add port 'tty/ttyUSB0', unhandled port type May 04 12:28:22 ubuntu ModemManager[2154]: <msg> [modem165/cdc-wdm2/mbim] MBIM device is QMI capable May 04 12:28:24 ubuntu ModemManager[2154]: <wrn> [/dev/cdc-wdm2] MBIM error: Transaction timed out May 04 12:28:24 ubuntu ModemManager[2154]: <wrn> [/dev/cdc-wdm2] MBIM error: Transaction timed out May 04 12:28:24 ubuntu ModemManager[2154]: <wrn> [/dev/cdc-wdm2] MBIM error: Transaction timed out May 04 12:28:24 ubuntu ModemManager[2154]: <wrn> [/dev/cdc-wdm2] MBIM error: Transaction timed out May 04 12:28:24 ubuntu ModemManager[2154]: <wrn> [/dev/cdc-wdm2] MBIM error: Transaction timed out May 04 12:28:24 ubuntu ModemManager[2154]: <msg> [modem165] state changed (unknown -> disabled) ------------------------------------------------------------------- I found some error messages in dmesg: [ 5.820163] WARNING: CPU: 1 PID: 119 at drivers/usb/typec/ucsi/ucsi.c:1390 ucsi_reset_ppm+0x1ba/0x1d0 [typec_ucsi] <snip> [ 5.820306] Call Trace: [ 5.820307] <TASK> [ 5.820309] ? show_regs+0x6c/0x80 [ 5.820313] ? __warn+0x88/0x140 [ 5.820316] ? ucsi_reset_ppm+0x1ba/0x1d0 [typec_ucsi] [ 5.820320] ? report_bug+0x182/0x1b0 Here are some additional part of the dmesg I think might be relevant: [ 0.092992] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 0.093070] PCI: ECAM [mem 0xc0000000-0xcfffffff] (base 0xc0000000) for domain 0000 [bus 00-ff] [ 0.093082] PCI: Using configuration type 1 for base access [ 0.093164] kprobes: kprobe jump-optimization is enabled. All kprobes are optimized if possible. [ 0.093168] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages [ 0.093168] HugeTLB: 16380 KiB vmemmap can be freed for a 1.00 GiB page [ 0.093168] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 0.093168] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 0.093168] ACPI: Added _OSI(Module Device) [ 0.093168] ACPI: Added _OSI(Processor Device) [ 0.093168] ACPI: Added _OSI(3.0 _SCP Extensions) [ 0.093168] ACPI: Added _OSI(Processor Aggregator Device) [ 0.165473] ACPI Error: No pointer back to namespace node in package (____ptrval____) (20240322/dsargs-301) [ 0.165479] ACPI Error: AE_AML_INTERNAL, While resolving operands for [Index] (20240322/dswexec-433) [ 0.165488] Initialized Local Variables for Method [GCMP]: [ 0.165489] Local0: (____ptrval____) <Obj> Package (____ptrval____) [ 0.165493] Initialized Arguments for Method [GCMP]: (1 arguments defined for method invocation) [ 0.165494] Arg0: (____ptrval____) <Obj> Integer 0000000000000003 [ 0.165498] ACPI Error: Aborting method \_SB.GCMP due to previous error (AE_AML_INTERNAL) (20240322/psparse-529) [ 0.165512] ACPI Error: Aborting method \_SB.GADR due to previous error (AE_AML_INTERNAL) (20240322/psparse-529) [ 0.165516] ACPI Error: Aborting method \_SB.GGIV due to previous error (AE_AML_INTERNAL) (20240322/psparse-529) [ 0.165519] ACPI Error: Aborting method \_SB.GSID due to previous error (AE_AML_INTERNAL) (20240322/psparse-529) [ 0.165521] ACPI Error: Aborting method \_SB.GSRM due to previous error (AE_AML_INTERNAL) (20240322/psparse-529) [ 0.165524] ACPI Error: Aborting method \_SB.UINI due to previous error (AE_AML_INTERNAL) (20240322/psparse-529) [ 0.165527] ACPI Error: Aborting method \ due to previous error (AE_AML_INTERNAL) (20240322/psparse-529) [ 0.165532] ACPI Error: Invalid zero thread count in method (20240322/dsmethod-780) [ 0.165533] ACPI Error: Invalid OwnerId: 0x000 (20240322/utownerid-156) [ 0.165627] ACPI Error: AE_AML_INTERNAL, (SSDT:xh_mtlp3) while loading table (20240322/tbxfload-189) [ 0.166846] ACPI Error: 1 table load failures, 26 successful (20240322/tbxfload-208) [ 0.168409] ACPI: EC: EC started [ 0.168410] ACPI: EC: interrupt blocked [ 0.169111] ACPI: EC: EC_CMD/EC_SC=0x66, EC_DATA=0x62 [ 0.169113] ACPI: EC: Boot ECDT EC used to handle transactions [ 0.201999] ACPI: USB4 _OSC: OS supports USB3+ DisplayPort+ PCIe+ XDomain+ [ 0.202005] ACPI: USB4 _OSC: OS controls USB3+ DisplayPort+ PCIe+ XDomain+ [ 0.208152] ACPI: Interpreter enabled [ 0.208218] ACPI: PM: (supports S0 S4 S5) [ 0.208219] ACPI: Using IOAPIC for interrupt routing [ 0.209690] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 0.209691] PCI: Ignoring E820 reservations for host bridge windows [ 0.213052] ACPI: Enabled 9 GPEs in block 00 to 7F [ 0.213072] ACPI: Enabled 8 GPEs in block 80 to DF [ 0.221234] ACPI: \_SB_.PC00.RP11.PXP_: New power resource [ 0.224844] ACPI: \_SB_.PC00.XHCI.RHUB.HS10.BTRT: New power resource [ 0.224895] ACPI: \_SB_.PC00.XHCI.RHUB.HS10.DBTR: New power resource [ 0.237290] ACPI: \_SB_.PC00.CNVW.WRST: New power resource [ 0.257026] ACPI: \_SB_.PC00.TBT0: New power resource [ 0.257088] ACPI: \_SB_.PC00.TBT1: New power resource [ 0.257143] ACPI: \_SB_.PC00.D3C_: New power resource [ 0.276573] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.BIND._STA.IUBE], AE_NOT_FOUND (20240322/psargs-332) [ 0.276581] No Local Variables are initialized for Method [_STA] [ 0.276583] No Arguments are initialized for method [_STA] [ 0.276585] ACPI Error: Aborting method \_SB.BIND._STA due to previous error (AE_NOT_FOUND) (20240322/psparse-529) [ 0.276633] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.CIND._STA.IUCE], AE_NOT_FOUND (20240322/psargs-332) [ 0.276637] No Local Variables are initialized for Method [_STA] [ 0.276638] No Arguments are initialized for method [_STA] [ 0.276639] ACPI Error: Aborting method \_SB.CIND._STA due to previous error (AE_NOT_FOUND) (20240322/psparse-529) [ 0.276685] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.DIND._STA.IUDE], AE_NOT_FOUND (20240322/psargs-332) [ 0.276688] No Local Variables are initialized for Method [_STA] [ 0.276690] No Arguments are initialized for method [_STA] [ 0.276691] ACPI Error: Aborting method \_SB.DIND._STA due to previous error (AE_NOT_FOUND) (20240322/psparse-529) [ 0.278656] ACPI: \PIN_: New power resource [ 0.279102] ACPI: PCI Root Bridge [PC00] (domain 0000 [bus 00-fe]) [ 0.279110] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI EDR HPX-Type3] [ 0.280055] acpi PNP0A08:00: _OSC: platform does not support [AER] [ 0.281884] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug SHPCHotplug PME PCIeCapability LTR DPC] ------------------------------------------------------------------- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2110048/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp