Good evening Nicolas.

 I have, after a bit of a battle, downloaded 12.10 Alpha. I am having the same issue in 12.10 that I am having with 12.04. I purchased a Linux User magazine that had a 12.04 live cd (beta version) and tried it. I got the same error. I then tried the 11.10 live cd and also got the same error that I was getting in 12.04 and 12.10. I then tried the 11.04 live cd and I was able to connect to the internet.

This past weekend I went to my friend who also has an E220 modem and who is running 12.04 on one of his hard drives (he is also running 10.04). He is not experiencing connection issues. I tried my modem in his 12.04 and it would not connect. We then put his SIM card in my modem and it connected. I then tried my SIM card in his modem and it would not connect.

I then put my cell phone's SIM card into both modems. Both did not connect. I have noticed that 10.04 is using modem-manager version 0.3. 11.04 is using modem-manager version 0.4. 11.10, 12.04 and 12.10 are using version 0.5.

The error message popups in versions 11.10, 12.04 and 12.10 all complain under:
SegvAnalysis
  Segfault happened at:0xb75ab3f0 <g_utf8_validate+464>: movzbl 0x0(%ebp),%eax
  PC(0xb75ab3f0)ok
  source "0x0(%ebp)" (0x00000000) not located in a known VMA region (needed readable region)!
  destination "%eax" ok

SegvReason
   reading NULL VMA

Nicolas what do you suggest I do next?

Regards
Philip

-----Original Message-----
From: <email address hidden> [mailto:<email address hidden>] On Behalf Of Nicholas Skaggs
Sent: 19 June 2012 19:49
To: <email address hidden>
Subject: [Bug 1014054] Re: Huawei E220 modem will not connect in Ubuntu 12.04

Since this modem is supported by the kernel since 2.6.20, and it's no
longer working but used to, I would try a few things. First, grab an iso
of a daily cd of quantal and see if your modem works running the live
session via booting from the cd. If so, then the newer versions of
modem-manager and/or the kernel fix your issue. To try and see if the
kernel fixes the issue, go ahead and try running the 12.10 kernel on
12.04. Instructions are here:

http://www.theorangenotebook.com/2012/06/call-for-testing-1210-kernel-
on-1204.html

If a newer kernel doesn't work, you can try installing the newer version
of modem-manager from quantal.

If the livecd of quantal also fails, we can try using an older kernel
and/or older version of modem-manager. Troubleshoot until you isolate
the problem and then we can raise it to the applicable upstream.

-- 
You received this bug notification because you are subscribed to the bug
report.
https://bugs.launchpad.net/bugs/1014054

Title:
  Huawei E220 modem will not connect in Ubuntu 12.04

Status in Ubuntu:
  New

Bug description:
  Good afternoon my Huawei E220 USB modem will not connect in Ubuntu 12.04LTS. I connects in Ubuntu 9.04, 10.04LTS and Windows XP SP3. Every time I try and connect in 12.04 I get this error:
  modem-manager crashed with SIGSEGV in g_utf8_validate()

  I have searched the internet and I have been unable to find any
  information on what is causing this error message, and what to do to
  correct it. Because of this 12.04 is not usable.

  Regards
  Philip

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+bug/1014054/+subscriptions