Unable to make Internet connection with Option Globetrotter Fusion+ on Ubuntu 9.10
Bug #505330 reported by
Radoslaw
This bug affects 4 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Linux |
Fix Released
|
High
|
|||
linux (Ubuntu) |
Fix Released
|
Medium
|
Unassigned | ||
Karmic |
Won't Fix
|
Medium
|
Unassigned |
Bug Description
This bug report is related to the bug report #425312. While that bug is about proper detecting of the modem with network-manager, you can find a lot of debugging of Internet connection reporting there, including syslog, network-manager and modem-manager debug logs. This bug report is continuation of debugging the modem connection issue.
Changed in linux (Ubuntu): | |
status: | New → Triaged |
importance: | Undecided → Medium |
Changed in linux: | |
status: | Unknown → Incomplete |
tags: | added: patch |
Changed in linux (Ubuntu): | |
status: | Fix Committed → Fix Released |
Changed in linux: | |
status: | Incomplete → Fix Released |
Changed in linux: | |
importance: | Unknown → High |
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Some things that can be said about current status of the connection issue after some testing:
1. It is not possible to connect using network-manager trhough Gnome nm-applet.
2. It is possible to connect from command line using pon, poff (see comments at bug #425312).
3. It is possible to connect with network-manager after downgrading nozomi driver to that from 2.6.28 kernel version
After some further testing it seems that the 2.6.28 version of nozomi driver is the last one that is working with network-manager, so it seems that the connection problem started after the following commit to the kernel driver:
2009-01-02 Alan Cox tty: kref nozomi
(you can find it at: http:// git.kernel. org/?p= linux/kernel/ git/stable/ linux-2. 6.32.y. git;a=history; f=drivers/ char/nozomi. c;h=d3400b20444 f4f726b7de49e6f f88a5aa78cc938; hb=a1092bf3809c 7ec7b730d0cca3b dba964a813147)
The problem seems to be related to multiple open and close of nozomi tty port operations performed when using network-manager connection. I found that the attached patch allows to make Internet connection with network-manager work but when you don't use current ppa repository for network-manager and modem-manager (to make the modem appear in nm-applet you have to use some workaround for #425312 bug - restart modem-manager after inserting the modem card). Usually the connection doesn't work with first attempt, mostly with the second one, but it is the same like it worked with Ubuntu 9.04 (2.6.28 kernel).
This patch is experimental code that tries to bring back some former bechavior of nozomi kernel driver. Though it makes some resoult, it is not provided here as a fix.