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[Bug 466325] Re: System crashes if cable hot unplugged; No interface but "lo" listed by ifconfig if cable isn't plugged when booting; wireless doesn't work at all.

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <466325@xxxxxxxxxxxxxxxxxx>
Date: Tue, 04 Oct 2011 18:45:59 -0000
Reply-to: Bug 466325 <466325@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: network-manager (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/466325

Title:
  System crashes if cable hot unplugged; No interface but "lo" listed by
  ifconfig if cable isn't plugged when booting; wireless doesn't work at
  all.

Status in “network-manager” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: network-manager

  This issue appears on my HP Mini 1030nr netbook, under Karmik Netbook
  Remix  (Ubuntu 9.10) with network-manager
  0.8~a~git.20091013t193206.679d548-0ubuntu1.

  It has built-in ethernet contorller. When booting without network
  cable plugged in, Ubuntu can't detect eth0 interface (it is not listed
  by ifconfig). When booting with plugged ethernet cable it is
  successfully configured automatically and works properly. However,
  when I try to hot-unplug the cable, system crashes: black screen with
  a blinking cursor appears, with caps-lock indicator blinking.

  This issue is generated also by desktop version of Ubuntu 9.10, not
  only UNR. It could be easily generated using live boot from USB flash
  without installing the Ubunto to hard drive:

  1. Boot from live USB with Ethernet cable plugged;
  2. Unplug Ethernet cable -- system crashes!

  Note that I have HP Mini 1030nr with 16GB SSD and BIOS upgraded to
  F.15 (KBC version 02.12).

  Also, wireless doesn't work in Karmic for this model of netbook (it
  works properly under Jaunty Netbook Remix).

  dato@dato-laptop:~$ lspci | grep -i network
  01:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01)

  See also #469313 - doesn't see wireless. Probably, same problem.

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