I just wanted to post some troubleshooting advice for others who think they may be affected by this bug. I was experiencing the "link down" and autonegotiation issues, which were resolvable with 'sudo ethtool -s eth0 autoneg off' but that gave me a virtually useless 10BaseT/half connection! I now have a Gigabit connection and the coveted green light on my router. I thought it was a software problem, but it was in fact a **temporary hardware bug**.
I spent about 10 hours troubleshooting with different drivers, kernels, and ethtool settings before discovering the problem was really due to a corrupted residual memory on the network card. So, before doing wasting your time troubleshooting, try this: 1) power down the computer safely 2) unplugging the network cable and power cable from the computer 3) wait 15 minutes 4) plug the cables back in 5) power on the computer 6) wait 2 minutes for the link to autonegotiate 7) check link status based on the lights on the router/card (preferred) or ethtool (can be incorrect if the wrong kernel module is installed) Many thanks to 'tgalati4' at this post for the advice: http://ubuntuforums.org/archive/index.php/t-1480328.html I'm now using Maverick 10.10 with the Realtek driver, compiled as shown here: http://djlab.com/2010/10/fixing-rtl8111-8168b-driver-debian-ubuntu/ However, I suspect the r8169 driver supplied with the kernel would work, now that I've resolved the hardware issue. This solution may not fix all problems with r8168 cards, but it's **so easy** that you should really try it before troubleshooting the software. - Fisslefink Additional details of my **working** configuration: Hardware: Zotac Zbox HD-ID11 mythtv@beagle:~$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=10.10 DISTRIB_CODENAME=maverick DISTRIB_DESCRIPTION="Ubuntu 10.10" mythtv@beagle:~$ lspci|grep Real 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03) mythtv@beagle:~$ uname -a Linux beagle 2.6.37-020637rc2-generic #201011160905 SMP Tue Nov 16 10:15:47 UTC 2010 i686 GNU/Linux mythtv@beagle:~$ sudo ethtool eth0 Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: Symmetric Receive-only Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 0 Transceiver: internal Auto-negotiation: on MDI-X: Unknown Supports Wake-on: pumbg Wake-on: g Current message level: 0x00000033 (51) Link detected: yes mythtv@beagle:~$ sudo ethtool -i eth0 driver: r8168 version: 8.019.00-NAPI firmware-version: bus-info: 0000:01:00.0 mythtv@beagle:~$ sudo modinfo r8168 #do modinfo r8169 if you're not using the Realtek driver filename: /lib/modules/2.6.37-020637rc2-generic/kernel/drivers/net/r8168.ko version: 8.019.00-NAPI license: GPL description: RealTek RTL-8168 Gigabit Ethernet driver author: Realtek and the Linux r8168 crew <net...@vger.kernel.org> srcversion: C6A00D0CB85CAF6116D44A4 alias: pci:v000010ECd00008168sv*sd*bc*sc*i* depends: vermagic: 2.6.37-020637rc2-generic SMP mod_unload modversions 686 parm: speed:force phy operation. Deprecated by ethtool (8). (array of int) parm: duplex:force phy operation. Deprecated by ethtool (8). (array of int) parm: autoneg:force phy operation. Deprecated by ethtool (8). (array of int) parm: rx_copybreak:Copy breakpoint for copy-only-tiny-frames (int) parm: use_dac:Enable PCI DAC. Unsafe on 32 bit PCI slot. (int) parm: debug:Debug verbosity level (0=none, ..., 16=all) (int) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/564984 Title: r8169 fails to autonegotiate speed/duplex To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/564984/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
