After sleep (suspend), NVidia MCP55 Ethernet is broken [Intrepid]

[Sami Mäkinen]

The issue is almost the same as https://bugs.launchpad.net/ubuntu/+source/linux/+bug/136836

Unlike for some others, for me an Intrepid installation with default settings has networking correctly working.

After suspending and resuming, network no longer works.

"rmmod forcedeth; modprobe forcedeth msi=0 msix=0" resolves the situation fully.

If I add "options forcedeth msi=0 msix=0" to "/etc/modprobe.d/forcedeth" the networking will still not automatically work after first resume, but then it is enough to run "rmmod forcedeth; modprobe forcedeth" after sleep to get it working again. After successive suspend+resume everything works automatically without running commands.

Linux 2.6.27-9-generic #1 SMP Thu Nov 20 22:15:32 UTC 2008 x86_64 GNU/Linux

So there is a workaround, but the workaround requires root privileges and is manual work, so not good.

[Sami Mäkinen (sami-makinen-helsinki)]

Assigning to Stefan Bader, who was working on the closely related bug 136836. Should I do this or not?

[Sami Mäkinen (sami-makinen-helsinki)]

wrong stefan bader in last assignment, sorry

[Sami Mäkinen (sami-makinen-helsinki)]

PS: After the first suspend, and then fixing the issue by re-inserting the kernel module, on successive suspends (same session, without rebooting, etc) the network works automatically.

[Laszlo Almasi (almalaci)]

This is the only way I managed to restore network after suspend, thank you. It works the same way for me, no automatic way but at least there's something

[Laszlo Almasi (almalaci)]

Still manual work but once done, it's permanent:
After editing /etc/modprobe.d/forcedeth you need to update initramfs:
update-initramfs -u -k $(uname -r)

Found it in this bug:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/136836

[Leann Ogasawara (leannogasawara)]

Hi Sami,

Care to test and confirm if this issue remains with the most recent pre-release of Jaunty 9.04 (currently Alpha4) - http://cdimage.ubuntu.com/releases/jaunty/ . It contains a newer 2.6.28 based kernel. You should be able to test suspend via a LiveCD. Please let us know your results. If the issue remains, per the kernel team's bug policy, please also attach the following information. Please be sure to attach each file as a separate attachment.

* cat /proc/version_signature > version.log
* dmesg > dmesg.log
* sudo lspci -vvnn > lspci-vvnn.log

It would also be best to capture your dmesg output after a suspend/resume cycle. For more information regarding the kernel team bug policy, please refer to https://wiki.ubuntu.com/KernelTeamBugPolicies . Thanks again and we appreciate your help and feedback.

[vista killer (vistakiller)]

I have the same problem. First i give this in terminal

sudo -i; MODULE="forcedeth"; echo "SUSPEND_MODULES=\"$MODULE\"" >/etc/pm/config.d/01suspend_modules; exit

and after the suspend i give

sudo /etc/init.d/networking restart

now every time i give network restart the network work again. My system is kubuntu jaunty 9.04

[Brad Figg (brad-figg)]

This bug was filed against a series that is no longer supported and so is being marked as Won't Fix. If this issue still exists in a supported series, please file a new bug.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.