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[Driuchatyi Nikolay <druchaty@xxxxxxxxx>]

** Tags added: kernel-bug-exists-upstream-4.3-rc1

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/1497005

Title:
  JMicron JMC250 Gigabit ethernet doesn't work

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Laptop ASUS X52JU can't connect to the router ASUS RT-AC68U via ethernet. NetworkManager shows that cable is unplugged. Router has Gigabit ethernet ports and laptop doesn't see them. I found that it's a bug of the JMC kernel module. 
  I tried to use 
  sudo ethtool -s eth0 speed 100 duplex full
  but I would like to be able to use Gigabit LAN.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.16.0-49-generic 3.16.0-49.65~14.04.1
  ProcVersionSignature: Ubuntu 3.16.0-49.65~14.04.1-generic 3.16.7-ckt15
  Uname: Linux 3.16.0-49-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.13
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu Sep 17 23:27:06 2015
  InstallationDate: Installed on 2015-06-16 (92 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  SourcePackage: linux-lts-utopic
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.14.1-0ubuntu3.13
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  nick       1682 F.... pulseaudio
   /dev/snd/controlC0:  nick       1682 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=b3669551-f67b-41f1-a310-6b79e24b871c
  InstallationDate: Installed on 2015-06-16 (93 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  MachineType: ASUSTeK Computer Inc. K52JU
  Package: linux (not installed)
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-49-generic root=UUID=c8aa6fb0-2c0a-430d-b6e5-7bb4ebb8346e ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.16.0-49.65~14.04.1-generic 3.16.7-ckt15
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-49-generic N/A
   linux-backports-modules-3.16.0-49-generic  N/A
   linux-firmware                             1.127.15
  Tags:  trusty
  Uname: Linux 3.16.0-49-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
  _MarkForUpload: True
  dmi.bios.date: 01/25/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: K52JU.206
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: K52JU
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrK52JU.206:bd01/25/2011:svnASUSTeKComputerInc.:pnK52JU:pvr1.0:rvnASUSTeKComputerInc.:rnK52JU:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: K52JU
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

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