Hello, i am trying to run RM520N-GLAP pcie only module on ubuntu 20.04. Installed latest drivers without any problems but modem cannot start. I tested that module on windows 10 and there was no problems, module worked fine.
On ubuntu i can see this module as 01:00.0 Unassigned class [ff00]: Qualcomm Device 0308
I cannot see any modem in modemmanager.
wan@wan-FUTRO-S940:~/Quectel_Linux_PCIE_MHI_Driver_V1.3.7/pcie_mhi$ lsmod | grep mhi
pcie_mhi 204800 0
mhi_net 16384 0
mhi_wwan_ctrl 20480 0
wwan 20480 1 mhi_wwan_ctrl
mhi_pci_generic 24576 0
mhi 98304 3 mhi_wwan_ctrl,mhi_net,mhi_pci_generic
wan@wan-FUTRO-S940:~/Quectel_Linux_PCIE_MHI_Driver_V1.3.7/pcie_mhi$ dmesg | grep mhi
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.15.0-122-generic root=UUID=f8cc7d7a-1cae-4b55-9a21-cc2552d38f9a ro ... mhi_timeout=60 quiet splash pcie_aspm=off vt.handoff=7
[ 0.046570] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.15.0-122-generic root=UUID=f8cc7d7a-1cae-4b55-9a21-cc2552d38f9a ro ... mhi_timeout=60 quiet splash pcie_aspm=off vt.handoff=7
[ 0.046882] Unknown kernel command line parameters "splash BOOT_IMAGE=/boot/vmlinuz-5.15.0-122-generic mhi_timeout=60", will be passed to user space.
[ 0.960604] mhi_timeout=60
[ 1.198272] mhi-pci-generic 0000:01:00.0: BAR 0: assigned [mem 0xa1201000-0xa1201fff 64bit]
[ 1.198297] mhi-pci-generic 0000:01:00.0: enabling device (0000 -> 0002)
[ 1.198381] mhi-pci-generic 0000:01:00.0: using shared MSI
[ 1.199606] mhi mhi0: Requested to power ON
[ 1.199732] mhi mhi0: Power on setup success
[ 1.520896] mhi mhi0: Wait for device to enter SBL or Mission mode
[ 25.504897] mhi mhi0: Did not enter M0 state, MHI state: M3, PM state: M3->M0
[ 25.504911] mhi_wwan_ctrl: probe of mhi0_DIAG failed with error -5
[ 25.505048] mhi-pci-generic 0000:01:00.0: failed to resume device: -5
[ 25.505191] mhi-pci-generic 0000:01:00.0: device recovery started
[ 25.505248] mhi_wwan_ctrl: probe of mhi0_MBIM failed with error -5
[ 25.505279] mhi_wwan_ctrl: probe of mhi0_QMI failed with error -5
[ 25.505956] mhi mhi0: Requested to power ON
[ 25.506115] mhi mhi0: Power on setup success
[ 26.947570] pcie_mhi: loading out-of-tree module taints kernel.
[ 26.947739] pcie_mhi: module verification failed: signature and/or required key missing - tainting kernel
[ 26.954676] mhi_init Quectel_Linux_PCIE_MHI_Driver_V1.3.7
[ 33.697243] mhi-pci-generic 0000:01:00.0: reset
[ 35.832982] mhi mhi0: Requested to power ON
[ 47.380707] mhi mhi0: Failed to reset MHI due to syserr state
[ 47.380717] mhi-pci-generic 0000:01:00.0: failed to power up MHI controller