wired network disabled in NetworkManager after resuming from suspend

[Philip Peitsch]

The wired controller is disabled (grayed out so it can't be clicked) in the nm-applet after resuming the laptop from suspend. Attempting to secure a DHCP offer via terminal (e.g., 'sudo dhclient eth0') fails, though the network lights on the hardware are physically on.

To get the networking to function again I need to reload the kernel drivers by doing the following:
sudo modprobe -r et131x
sudo modprobe et131x

I have a Ethernet controller: Agere Systems ET-131x PCI-E Ethernet Controller (rev 02)

[marco.pallotta (marco-pallotta)]

I too tested this issue in my acert laptop (08:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express (rev 02). The bug happens at around 1/3 of the suspends/resumes and if I do
ifconfig
I only see the "lo" interface. If I connect my cell-phone with a usb cable to start my gprs Internet connection, nm-applet doesn't do anything and the usb0 interface doesn't appear. If I do
ifconfig usb0
usb0 appears but with no ip (nm-applet still remains in network disabled state).
To resume the normal state of my PC I rebooted it (I haven't tried any "rmod/modprobe")

[Michael Elkins (sigpipe)]

I see this same problem with a newly upgraded Ibex, but with both the wired and wireless connections. Even attempting to run wpa_supplicant by hand on the command line won't work. I have to reboot the machine to get the networking back.

00:00.0 Host bridge: nVidia Corporation nForce2 IGP2 (rev c1)
00:00.1 RAM memory: nVidia Corporation nForce2 Memory Controller 1 (rev c1)
00:00.2 RAM memory: nVidia Corporation nForce2 Memory Controller 4 (rev c1)
00:00.3 RAM memory: nVidia Corporation nForce2 Memory Controller 3 (rev c1)
00:00.4 RAM memory: nVidia Corporation nForce2 Memory Controller 2 (rev c1)
00:00.5 RAM memory: nVidia Corporation nForce2 Memory Controller 5 (rev c1)
00:01.0 ISA bridge: nVidia Corporation nForce2 ISA Bridge (rev a4)
00:01.1 SMBus: nVidia Corporation nForce2 SMBus (MCP) (rev a2)
00:02.0 USB Controller: nVidia Corporation nForce2 USB Controller (rev a4)
00:02.1 USB Controller: nVidia Corporation nForce2 USB Controller (rev a4)
00:02.2 USB Controller: nVidia Corporation nForce2 USB Controller (rev a4)
00:04.0 Ethernet controller: nVidia Corporation nForce2 Ethernet Controller (rev a1)
00:06.0 Multimedia audio controller: nVidia Corporation nForce2 AC97 Audio Controler (MCP) (rev a1)
00:08.0 PCI bridge: nVidia Corporation nForce2 External PCI Bridge (rev a3)
00:09.0 IDE interface: nVidia Corporation nForce2 IDE (rev a2)
00:1e.0 PCI bridge: nVidia Corporation nForce2 AGP (rev c1)
01:04.0 Ethernet controller: Atheros Communications Inc. AR2413 802.11bg NIC (rev 01)
02:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV250 If [Radeon 9000] (rev 01)
02:00.1 Display controller: ATI Technologies Inc Radeon RV250 [Radeon 9000] (Secondary) (rev 01)

[Dimitrios Symeonidis (azimout)]

assigning to the network-manager package

philip, i suspect you'd be able to bring the interface up after resuming also by typing "sudo ifconfig eth0 up", instead of removing and adding the kernel module... can you please confirm?
thank you, and good luck

[Dimitrios Symeonidis (azimout)]

by the way, let me note that this bug report is a mess:
- philip has an Agere ET-131x
- marco has a Broadcom NetLink BCM5787M
- michael has an nVidia nForce2 and an Atheros AR2413

[marco.pallotta (marco-pallotta)]

Removing and adding the kernel module (for me cdc_ether as I don't use my Broadcom for the Internet connection but I use a cell phone) doesn't run for me.
Next time I will try "sudo ifconfig usb0 up" as asked by Dimitrios.

[marco.pallotta (marco-pallotta)]

"ifconfig ubs0 up" doesn't run for me. To re-enable network I have to reboot my PC.

[Tomasz 'Zen' Napierala (tzn)]

Guys,
Did you just try to reload NetworkManager? /etc/init.d/NetworkManager restart
I suspect it would help, because it's crashing with segfault during resume process

[Michael Elkins (sigpipe)]

On Thu, Feb 26, 2009 at 10:36:15AM -0000, Tomasz Z. Napierala wrote:
> Did you just try to reload NetworkManager? /etc/init.d/NetworkManager restart
> I suspect it would help, because it's crashing with segfault during resume process

I invoke NetworkManager directly when this occurs. After a few seconds,
nm-applet shows that it is trying to connect again.

me

[marco.pallotta (marco-pallotta)]

Invoking NetworkManager (from root) directly, when the issue happens, doesn't run for me (NetworkManager goes in crash when I invoke it).
Tested always with Hardy.

[papukaija (papukaija)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 533471, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.

[Peter Antoniac (pan1nx)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 524454, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.