"QmiWwanInit message timeout" when run ./quectel-CM in Ubuntu kernel v.5.4.0

Technical Subjects
1

Hello,

When I ran sudo ./quectel-CM, I got those error messages “QmiWwanInit message timeout” frequently. That means sometimes quectel-CM can run successfully, but sometimes can not;

  1. Running on Supermicro
    Product Name: X12SDV-8C-SP6F
    Version: 1.02
  2. Quectel module: RM510 and RG530
  3. Connected to supermicro using a USB cable
  4. OS: Ubuntu Server 20.04 LTS
  5. Kernel version: 5.4.0-164-generic
  6. Driver installed: Quectel_Linux_Android_QMI_WWAN_Driver_V1.2.2
  7. QC Connect version: Quectel_QConnectManager_Linux_V1.6.5

I have tried reinstalling “Quectel_Linux_Android_QMI_WWAN_Driver_V1.2.2”, and then sudo modprobe qmi_wwan_q, but no use.

If anyone has suggestions is very appreciated!

image1
image1975×377 146 KB

2

Are you sure you have disabled the ModemManager?

3

Normally on the Ubuntu, there exits ModemManager that will also use the QMI.
And then the quectel-CM won’t work.
To disable it:

sudo systemctl stop ModemManager
sudo systemctl disable ModemManager