I have trouble pinpointing the actual problem. Did you want to say
"15-25 seconds" instead of "minutes"?
The only unusual behaviour I see in your log is that the very first run
of usb_modeswitch takes roughly 40 seconds. Afterwards, everything seems
to be fine, modem and storage.
I suppose the later disconnect and reconnect was caused by you
unplugging and re-plugging the modem, right? It's at 09:50:58.
Here are the excerpts for the first run:
Nov 07 09:49:38 abnilson-HP-250-G6-Notebook-PC kernel: usb 1-3: New USB device
found, idVendor=19d2, idProduct=1595, bcdDevice= 0.00
Nov 07 09:49:38 abnilson-HP-250-G6-Notebook-PC kernel: usb 1-3: New USB device
strings: Mfr=2, Product=3, SerialNumber=5
Nov 07 09:49:38 abnilson-HP-250-G6-Notebook-PC kernel: usb 1-3: Product: HSPA
Mobile Broadband Station
Nov 07 09:49:38 abnilson-HP-250-G6-Notebook-PC kernel: usb 1-3: Manufacturer:
HSPA,Incorporated
Nov 07 09:49:38 abnilson-HP-250-G6-Notebook-PC kernel: usb 1-3: SerialNumber:
VIETPVNMF710MB01
Nov 07 09:49:38 abnilson-HP-250-G6-Notebook-PC kernel: usb-storage 1-3:1.0: USB
Mass Storage device detected
Nov 07 09:49:38 abnilson-HP-250-G6-Notebook-PC kernel: scsi host2: usb-storage
1-3:1.0
...
Nov 07 09:49:39 abnilson-HP-250-G6-Notebook-PC systemd[1]: Created slice
system-usb_modeswitch.slice.
Nov 07 09:49:39 abnilson-HP-250-G6-Notebook-PC systemd[1]: Starting
USB_ModeSwitch_1-3...
...
Nov 07 09:49:41 abnilson-HP-250-G6-Notebook-PC usb_modeswitch[870]: switch
device 19d2:1595 on 001/008
[this here is a relatively long wait]
Nov 07 09:50:16 abnilson-HP-250-G6-Notebook-PC kernel: usb 1-3: USB disconnect,
device number 8
...
Nov 07 09:50:17 abnilson-HP-250-G6-Notebook-PC kernel: usb 1-3: New USB device
found, idVendor=19d2, idProduct=1592, bcdDevice= 0.00
Nov 07 09:50:17 abnilson-HP-250-G6-Notebook-PC kernel: usb 1-3: New USB device
strings: Mfr=9, Product=10, SerialNumber=12
Nov 07 09:50:17 abnilson-HP-250-G6-Notebook-PC kernel: usb 1-3: Product: HSPA
Mobile Broadband Station
Nov 07 09:50:17 abnilson-HP-250-G6-Notebook-PC kernel: usb 1-3: Manufacturer:
HSPA,Incorporated
Nov 07 09:50:17 abnilson-HP-250-G6-Notebook-PC kernel: usb 1-3: SerialNumber:
VIETPVNMF710MB01
Nov 07 09:50:17 abnilson-HP-250-G6-Notebook-PC kernel: cdc_mbim 1-3:1.0:
cdc-wdm1: USB WDM device
...
Nov 07 09:50:18 abnilson-HP-250-G6-Notebook-PC root[1479]: usb_modeswitch:
switched to 19d2:1592 on 001/009
...
Nov 07 09:50:18 abnilson-HP-250-G6-Notebook-PC systemd[1]:
usb_modeswitch@1-3.service: Succeeded.
Nov 07 09:50:18 abnilson-HP-250-G6-Notebook-PC systemd[1]: Finished
USB_ModeSwitch_1-3.
...
Nov 07 09:50:18 abnilson-HP-250-G6-Notebook-PC kernel: scsi 2:0:0:0: CD-ROM
HSPA USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 0 CCS
Nov 07 09:50:18 abnilson-HP-250-G6-Notebook-PC kernel: scsi 2:0:0:1:
Direct-Access HSPA MMC Storage 2.31 PQ: 0 ANSI: 0 CCS
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https://bugs.launchpad.net/bugs/1903331
Title:
usb-modeswitch 2.6.1-1ubuntu2 is very buggy on Ubuntu 20.10
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