For me, this problem was resolved actually by replacing a hardware capacitor in my switch - see this comment: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/309211/comments/14
Something is funny between the card and some switches. That is for certain. On Wed, Aug 18, 2010 at 1:21 AM, Thomas Antepoth <[email protected]> wrote: > When plugging the cable into the wall plug instead of the Linksys SD2005 > the dmesg command shows that the same unchanged driver is in fact > capable to do 1000MB: > > >From the freshly compiled 8.0.19 driver issued by intel which is loaded > by "modprobe e1000 AutoNeg=0x28" as suggested earlier: > > Command:"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: 100baseT/Full > 1000baseT/Full > Advertised pause frame use: No > Advertised auto-negotiation: Yes > Link partner advertised link modes: Not reported > Link partner advertised pause frame use: No > Link partner advertised auto-negotiation: No > Speed: 100Mb/s > Duplex: Full > Port: Twisted Pair > PHYAD: 1 > Transceiver: internal > Auto-negotiation: on > MDI-X: Unknown > Supports Wake-on: umbg > Wake-on: g > Current message level: 0x00000007 (7) > Link detected: yes > > > Command: "ethtool -i eth0" > > driver: e1000 > version: 8.0.19-NAPI > firmware-version: N/A > bus-info: 0000:05:00.0 > > > Plugged into the SD2005 switch: > [32234.423251] e1000: eth0: e1000_watchdog_task: NIC Link is Down > [32243.193686] e1000: eth0: e1000_watchdog_task: NIC Link is Up 100 Mbps Full > Duplex, Flow Control: RX/TX > > > Plugged into the wall plug: > [33467.172950] e1000: eth0: e1000_watchdog_task: NIC Link is Down > [33478.655021] e1000: eth0: e1000_watchdog_task: NIC Link is Up 1000 Mbps > Full Duplex, Flow Control: RX/TX > > And back to the switch again: > [33547.942638] e1000: eth0: e1000_watchdog_task: NIC Link is Down > [33563.045981] e1000: eth0: e1000_watchdog_task: NIC Link is Up 100 Mbps Full > Duplex, Flow Control: RX/TX > > Smells a bit like some issues in the speed negotiation between the NIC > and the switch - most probably in "e1000_phy.c". Will dig some more into > that. > > -- > Intel Gibabit Ethernet NIC (82541PI) operating at 100Mbps instead of 1000Mbps > after upgrading to Hardy > https://bugs.launchpad.net/bugs/309211 > You received this bug notification because you are a direct subscriber > of the bug. > -- Intel Gibabit Ethernet NIC (82541PI) operating at 100Mbps instead of 1000Mbps after upgrading to Hardy https://bugs.launchpad.net/bugs/309211 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
