Public bug reported:

Ever since my fresh install of 9.04, my Sierra Wireless MC8780 stopped working.
The card is detected properly and here is the output of lsusb:

Bus 001 Device 008: ID 048d:8903 Integrated Technology Express, Inc. 
Bus 001 Device 004: ID 046d:09b2 Logitech, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 002: ID 0c24:000f Taiyo Yuden Bluetooth Driver (V2.0+EDR)
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 005: ID 1199:6832 Sierra Wireless, Inc. MC8780 Device
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 08ff:2580 AuthenTec, Inc. AES2501 Fingerprint Sensor
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

As you see, it's detected--> Bus 004 Device 005: ID 1199:6832 Sierra
Wireless, Inc. MC8780 Device

"modinfo sierra" shows:
filename:       
/lib/modules/2.6.28-11-generic/kernel/drivers/usb/serial/sierra.ko
license:        GPL
version:        v.1.3.2
description:    USB Driver for Sierra Wireless USB modems
author:         Kevin Lloyd <[email protected]>
srcversion:     849FEAD771651BE184C5E16
alias:          usb:v0F3Dp0112d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p0112d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6892d*dc*dsc*dp*icFFiscFFipFF*
alias:          usb:v1199p6891d*dc*dsc*dp*icFFiscFFipFF*
alias:          usb:v1199p6890d*dc*dsc*dp*icFFiscFFipFF*
alias:          usb:v1199p6880d*dc*dsc*dp*icFFiscFFipFF*
alias:          usb:v1199p685Ad*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6859d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6856d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6855d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6853d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6852d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6851d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6850d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p683Ed*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p683Dd*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p683Cd*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p683Bd*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p683Ad*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6833d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6832d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6821d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6820d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v03F0p1E1Dd*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6815d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6813d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6812d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6803d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6804d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p6802d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p0028d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p0027d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p0026d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p0025d*dc*dsc*dp*icFFiscFFipFF*
alias:          usb:v1199p0023d*dc*dsc*dp*icFFiscFFipFF*
alias:          usb:v1199p0120d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p0021d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p0019d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p0220d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p0024d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p0020d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v03F0p1B1Dd*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p0218d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p0018d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v1199p0017d*dc*dsc*dp*ic*isc*ip*
depends:        
vermagic:       2.6.28-11-generic SMP mod_unload modversions 586 
parm:           nmea:NMEA streaming (bool)
parm:           debug:Debug messages (bool)

Back to the prob..
WHen I tell NM to connect, the icon starts spinning round for like 5 sec, then 
it stops and tells me that "GSM network disconnected"

I've had this problem before in 8.04 and 8.10. But like magic in 8.10
after a NM update in mid January, it just worked!!

Now, where do I go from here?

** Affects: ubuntu
     Importance: Undecided
         Status: New


** Tags: 3g manager mc8780 network nm sierra

-- 
Sierra MC8780 not working
https://bugs.launchpad.net/bugs/376361
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