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monggnom
November 5th, 2009, 11:40 AM
I use Sierra aircard 775 with 9.04. It's work find but Now I had upgrade 9.04 to 9.10. NetworkManager can find my aircard, can create the connect profile but I can't connect to internet. When I try to connect by networkmanager, the networkmanager icon run for a sec and then show me that "GSM network disconnect"
I config follow http://ubuntuforums.org/showthread.php?t=347353

How can I fix it? Thank you in Advanced.

root@monggnom-laptop:~# pccardctl ident
Socket 0:
product info: "Sierra Wireless", "AC710/AC750", "GPRS Network Adapter", "R1"
manfid: 0x0192, 0x0710
function: 2 (serial)

root@monggnom-laptop:~# dmesg | grep tty
[ 0.001523] console [tty0] enabled
[ 33.919601] ttyS0: LSR safety check engaged!
[ 33.998482] ttyS0: LSR safety check engaged!
[ 75.671612] 0.0: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
[ 220.286047] ttyS0: LSR safety check engaged!
[ 731.458749] ttyS0: LSR safety check engaged!
[ 738.777828] ttyS0: LSR safety check engaged!
[ 744.462077] ttyS0: LSR safety check engaged!
[ 5170.032818] ttyS0: LSR safety check engaged!
[ 7369.307143] 0.0: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A

root@monggnom-laptop:~# lspci
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01)
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 01)
00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 01)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 01)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 01)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
03:01.0 CardBus bridge: O2 Micro, Inc. OZ601/6912/711E0 CardBus/SmartCardBus Controller (rev 40)
09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5752 Gigabit Ethernet PCI Express (rev 02)
0c:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)
root@monggnom-laptop:~#

monggnom
November 9th, 2009, 08:56 AM
^_^ Finally, I found the way to fix this problem by downgrade "network-manager" to 9.04 jaunty versions. please see detail as bleow

1) download below package from http://packages.ubuntu.com/ by search in jaunty version
libnm-glib0_0.7.1~rc4.1.cf199a964-0ubuntu2_i386.deb
network-manager_0.7.1~rc4.1.cf199a964-0ubuntu2_i386.deb
network-manager-gnome_0.7.1~rc4.1-0ubuntu2_i386.deb
2) dpkg --install --force-downgrade libnm-glib0_0.7.1~rc4.1.cf199a964-0ubuntu2_i386.deb network-manager_0.7.1~rc4.1.cf199a964-0ubuntu2_i386.deb network-manager-gnome_0.7.1~rc4.1-0ubuntu2_i386.deb

3) go to synptic, search for above package and "Lock Version" (under "Package" menu)

4) Enjoy to surve internet by your Sierra Aircard 775 ^_^"