[Bug 880316] Re: Link not detected / cable seems unplugged with jme - JMicron JMC250 Gigabit Ethernet Controller
*** This bug is a duplicate of bug 1497005 *** https://bugs.launchpad.net/bugs/1497005 ** This bug has been marked a duplicate of bug 1497005 197b:0250 JMicron JMC250 Gigabit ethernet doesn't work -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/880316 Title: Link not detected / cable seems unplugged with jme - JMicron JMC250 Gigabit Ethernet Controller To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/880316/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 880316] Re: Link not detected / cable seems unplugged with jme - JMicron JMC250 Gigabit Ethernet Controller
I had a look at what JMicron's driver does differently from the version included with Linux. It appears that it periodically checks for link failure after autonegotiation and then automatically tries renegotiating with only lower speed(s) enabled. So this is faulty hardware that can't maintain a 1000BASE-T link with some link partners. But since it works with others, disabling 1000BASE-T operation completely would cause a regression for some users. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/880316 Title: Link not detected / cable seems unplugged with jme - JMicron JMC250 Gigabit Ethernet Controller To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/880316/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 880316] Re: Link not detected / cable seems unplugged with jme - JMicron JMC250 Gigabit Ethernet Controller
Here's a patch with the changes relating to link management in the vendor driver version 1.0.5. Totally untested, but it applies and compiles against Linux 4.0. Don't ask me for help; I'm only uploading this to save time for anyone else who wants to work on the bug. ** Patch added: jme: link management changes from OOT version 1.0.8.5 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/880316/+attachment/4397673/+files/0001-jme-link-management-changes-from-OOT-version-1.0.8.5.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/880316 Title: Link not detected / cable seems unplugged with jme - JMicron JMC250 Gigabit Ethernet Controller To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/880316/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 880316] Re: Link not detected / cable seems unplugged with jme - JMicron JMC250 Gigabit Ethernet Controller
Interestingly jme in my Shuttle XS35V2 would establish a gigabit connection fine to a 8-port netgear switch, but not to 5-port netgear switch. 100mbit connection works with either. It is very strange. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/880316 Title: Link not detected / cable seems unplugged with jme - JMicron JMC250 Gigabit Ethernet Controller To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/880316/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 880316] Re: Link not detected / cable seems unplugged with jme - JMicron JMC250 Gigabit Ethernet Controller
switching to 100Mbps mentioned in comment #37 worked for me thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/880316 Title: Link not detected / cable seems unplugged with jme - JMicron JMC250 Gigabit Ethernet Controller To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/880316/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 880316] Re: Link not detected / cable seems unplugged with jme - JMicron JMC250 Gigabit Ethernet Controller
** Summary changed: - Ubuntu installer can't setup network on Shuttle XS35GTV2 + Link not detected / cable seems unplugged with jme - JMicron JMC250 Gigabit Ethernet Controller -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/880316 Title: Link not detected / cable seems unplugged with jme - JMicron JMC250 Gigabit Ethernet Controller To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/880316/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
