Gigabit speed lost after Resuming from Suspend

GriFF3n · 12-20-2009, 05:38 PM

Everytime I wake the server from sleep it changes my gigabit speeds to 100 Mb. I am able to get the gigabit speed back up but have to run this command:

Code:

sudo ethtool -s eth0 speed 1000

This is vary annoying as I have to do it every time I wake my server. Is there a way to run this command on wake? Server is running Ubuntu Server 9.10 and the nic is an r8169. Computer is an MSI Wind Nettop. This is listed as a bug on Launchpad (https://bugs.launchpad.net/ubuntu/+s...ux/+bug/371159) but their fix doesnt work for me. Any help would be appreciated. Thanks,

GriFF

nimnull22 · 12-21-2009, 10:20 AM

When your computer goes "suspend" Ethernet card interface goes DOWN. When you wake it up, interface goes up, but the config file doesn't have information about the speed.
"ifcfg-eth<N>" - it the file with config settings, you can add there additional option ETHTOOL_OPTIONS = 'speed 1000 duplex full ...'

GriFF3n · 12-21-2009, 11:14 AM

Quote:

Originally Posted by nimnull22

When your computer goes "suspend" Ethernet card interface goes DOWN. When you wake it up, interface goes up, but the config file doesn't have information about the speed.
"ifcfg-eth<N>" - it the file with config settings, you can add there additional option ETHTOOL_OPTIONS = 'speed 1000 duplex full ...'

Thanks minnull22, I'll give that a try when I get home tonight. I'll report back if it works or not. Thanks for the suggestion!

GriFF

GriFF3n · 12-21-2009, 08:08 PM

For Ubuntu there is no ifcfg. Looks like thats just for RedHat Linux. There is "interfaces" and "ifup/ifdown". Looking at the man pages for that now to see if I can run the "ETHTOOL_OPTIONS" as you suggested.

GriFF

nimnull22 · 12-21-2009, 08:25 PM

Just an example:

Under OpenSuSE™ 10.2, I placed the following in /etc/sysconfig/network/ifcfg-eth-id-00:16:3e:b1:d7:90 (the config file for eth0):
ETHTOOL_OPTIONS='............'

Under other distributions, the technique will vary. For example, under Debian™ or Ubuntu™, you can just add a 'post-up' entry to /etc/network/interfaces as shown here:
iface eth0 inet static
address 206.124.146.177
netmask 255.255.255.0
post-up ethtool ..............

Check this.

GriFF3n · 12-21-2009, 08:40 PM

Quote:

Originally Posted by nimnull22

Just an example:

Under OpenSuSE™ 10.2, I placed the following in /etc/sysconfig/network/ifcfg-eth-id-00:16:3e:b1:d7:90 (the config file for eth0):
ETHTOOL_OPTIONS='............'

Under other distributions, the technique will vary. For example, under Debian™ or Ubuntu™, you can just add a 'post-up' entry to /etc/network/interfaces as shown here:
iface eth0 inet static
address 206.124.146.177
netmask 255.255.255.0
post-up ethtool ..............

Check this.

Read the MAN pages and "post-up" is the command I'm using. It works, but I have to manually restart the network ("sudo /etc/init.d/networking restart") for the command to take effect. I know it works after that, but when I suspend the server, then bring it back up, the network doesnt seam to restart and is brought back to 100 Mbit. What I get from this is that when the server resumes from suspend, its not restarting the network. Any ideas? Again thanks for all the help so far nimnull22!

GriFF

GriFF3n · 12-21-2009, 09:23 PM

I'm a MONSTER!!!! Figured out that "pm-suspend"'s hooks can be altered to run commands during resume/hibernate/suspend/thaw. Heres the steps I took for anyone else who runs into this problem.

1. Create a file in "/etc/pm/sleep.d/" named "speed"

speed contains;

Code:

#!/bin/bash
case $1 in
    resume)
        ethtool -s eth0 speed 1000
        ;;
    *)  echo ""
        ;;
esac

2.

Code:

sudo chmod +x /etc/pm/sleep.d/speed

3. You're Done!!!!

I put an echo "whatever" in the script first to see if it would show on resume and it didnt on the main prompt. I had to look at "var/log/pm-suspend.log" to see it was working. Hope this helps other people. Thanks again for all your help nimnull22. Much appreciated!

GriFF

nimnull22 · 12-21-2009, 09:48 PM

Good, glad to hear that.

But it should be a script which brings interface up. May be in the network manager, I would help but I use OpenSuse and it is a lot different.

Any way, glad that you're happy.

jumon · 06-30-2010, 09:06 PM

Still happens on Ubuntu 10.04 too. Work-around above fixed it for now.

Linux linux 2.6.32-22-generic #36-Ubuntu SMP Thu Jun 3 19:31:57 UTC 2010 x86_64 GNU/Linux

04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)

root@linux:/etc/pm/sleep.d# mii-tool -vv eth0
Using SIOCGMIIPHY=0x8947
eth0: negotiated 1000baseT-FD flow-control, link ok
registers for MII PHY 32:
1000 796d 001c c912 0de1 c5e1 000f 2001
4f12 0300 3800 0000 1007 f880 0000 3000
0060 acc0 0000 6c42 1060 0000 c10c 2108
2740 8c00 0040 0106 097c 8000 0123 0000
product info: vendor 00:07:32, model 17 rev 2
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
link partner: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control