[Bug 1763575] Re: link_config: autonegotiation is unset or enabled

[dino99]

but setting is: 'Auto-negotiation: on'

oem at ubuntu:~$ ethtool enp2s0
Settings for enp2s0:
	Supported ports: [ TP MII ]
	Supported link modes:   10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Half 1000baseT/Full 
	Supported pause frame use: No
	Supports auto-negotiation: Yes
	Supported FEC modes: Not reported
	Advertised link modes:  10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Half 1000baseT/Full 
	Advertised pause frame use: Symmetric Receive-only
	Advertised auto-negotiation: Yes
	Advertised FEC modes: Not reported
	Link partner advertised link modes:  10baseT/Half 10baseT/Full 
	                                     100baseT/Half 100baseT/Full 
	Link partner advertised pause frame use: Symmetric
	Link partner advertised auto-negotiation: Yes
	Link partner advertised FEC modes: Not reported
	Speed: 100Mb/s
	Duplex: Full
	Port: MII
	PHYAD: 0
	Transceiver: internal
	Auto-negotiation: on
Cannot get wake-on-lan settings: Operation not permitted
	Current message level: 0x00000033 (51)
			       drv probe ifdown ifup
	Link detected: yes
***********
oem at ubuntu:~$ ethtool lo
Settings for lo:
Cannot get wake-on-lan settings: Operation not permitted
	Link detected: yes
********

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https://bugs.launchpad.net/bugs/1763575

Title:
  link_config: autonegotiation is unset or enabled

Status in systemd package in Ubuntu:
  New

Bug description:
  Get that message logged:

  systemd-udevd[401]: link_config: autonegotiation is unset or enabled,
  the speed and duplex are not writable.

  and system settings showing 'wired unmanaged'; that makes network
  speed slowing by 50 %

  Please check that fix has been really merged:

  https://unix.stackexchange.com/questions/413187/is-systemd-links-handling-of-auto-negotiation-broken
  https://github.com/systemd/systemd/pull/7808/files

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: systemd 237-3ubuntu8
  ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
  Uname: Linux 4.15.0-15-generic x86_64
  ApportVersion: 2.20.9-0ubuntu4
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Fri Apr 13 07:11:23 2018
  EcryptfsInUse: Yes
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 002: ID 046d:c062 Logitech, Inc. M-UAS144 [LS1 Laser Mouse]
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-15-generic root=UUID=2f22752a-ca0f-4cff-b5d7-9754e6154d56 ro
  SourcePackage: systemd
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/23/2018
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P7.30
  dmi.board.name: B150M-HDV
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP7.30:bd01/23/2018:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnB150M-HDV:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.family: To Be Filled By O.E.M.
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.
  modified.conffile..etc.systemd.journald.conf: [modified]
  mtime.conffile..etc.systemd.journald.conf: 2018-01-03T11:19:10.780935

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