Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.2 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-unstable/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1491761 Title: Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02) not working in 14.04 and 15.04 Status in linux package in Ubuntu: Incomplete Bug description: <info> (eth0): carrier is OFF Sep 2 20:00:32 cq71 NetworkManager[579]: <info> (eth0): new Ethernet device (driver: 'r8169' ifindex: 2) Sep 2 20:00:32 cq71 NetworkManager[579]: <info> (eth0): exported as /org/freedesktop/NetworkManager/Devices/1 Sep 2 20:00:32 cq71 NetworkManager[579]: <info> (eth0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2] Sep 2 20:00:32 cq71 NetworkManager[579]: <error> [1441216832.927980] [platform/nm-linux-platform.c:2250] link_change(): Netlink error changing link 2: <UP> mtu 0 (1) driver 'r8169' udi '/sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/net/eth0': Invalid address for specified address family Sep 2 20:00:32 cq71 NetworkManager[579]: <info> (eth0): preparing device r8169 0000:03:00.0 eth0: RTL8102e at 0xffffc90004778000, 00:00:00:00:00:00, XID 04c00000 IRQ 27 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02) Subsystem: Hewlett-Packard Company Device 306c Kernel driver in use: r8169 *-network DISABLED description: Ethernet interface product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:03:00.0 logical name: eth0 version: 02 size: 100Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full latency=0 link=no multicast=yes port=MII speed=100Mbit/s resources: irq:27 ioport:2000(size=256) memory:d4010000-d4010fff memory:d4000000-d400ffff memory:d5000000-d500ffff i compiled the r8101 module from here: http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=14&PFid=7&Level=5&Conn=4&DownTypeID=3&GetDown=false after i put in a "cloned mac adress" the card is functional. there is also an old bug report of this: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/256331 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1491761/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp