modem-manager: re-checking support... (Huawei E1820)
Hi
I am having Huawei E1820 HSPA+ USB modem plugged into my IBM ThinkPad
T42 laptop and a lot of messages in syslog like these:
Sep 30 15:34:57 t42deb modem-manager: (ttyUSB3): re-checking support...
Sep 30 15:34:57 t42deb modem-manager: (Huawei): (ttyUSB3) deferring
support check
Sep 30 15:34:57 t42deb modem-manager: (ttyUSB1): re-checking support...
Sep 30 15:34:57 t42deb modem-manager: (Huawei): (ttyUSB1) deferring
support check
Sep 30 15:34:57 t42deb modem-manager: (ttyUSB2): re-checking support...
Sep 30 15:34:57 t42deb modem-manager: (Huawei): (ttyUSB2) deferring
support check
Sep 30 15:34:57 t42deb modem-manager: (ttyUSB4): re-checking support...
Sep 30 15:34:57 t42deb modem-manager: (Huawei): (ttyUSB4) deferring
support check
Sep 30 15:35:00 t42deb modem-manager: (ttyUSB3): re-checking support...
Sep 30 15:35:00 t42deb modem-manager: (Huawei): (ttyUSB3) deferring
support check
Sep 30 15:35:00 t42deb modem-manager: (ttyUSB1): re-checking support...
What does that mean? And why are there different ttyUSBs? AFAIU the
modem is only using ttyUSB0, as seen earlier in the log:
Sep 30 15:25:54 t42deb pppd[5425]: Connect: ppp0 <--> /dev/ttyUSB0
The connection basically works and is fast. However from time to time I
am experiencing huge network lags (like 25 seconds to ping google.com).
However this does not seem related to the above messages as I have been
getting them about once per second since 13:48 today. It is 15:58 now.
The connection has been active since the morning (9 AM or so) (with 2-3
resets).
This is the latest Squeeze (Debian 6.0.6).
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