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[Michael Korn <michael@xxxxxxxxxxxxxxxx>]

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https://bugs.launchpad.net/bugs/1236420

Title:
  OptiPlex 9020 and Wake-on-LAN: reboot instead of a shutdown

Status in “linux” package in Ubuntu:
  New

Bug description:
  We have several OptiPlex 9020 (with  i7-4770) from Dell and we don't have any problems without WOL.
  After activating WOL and disabling "Deep Sleep" in BIOS it is not possible to shutdown the machines with Ubuntu. It's still possible to shutdown with Windows 7 (and WOL is working).

  - On shutdown (from the GUI OR poweroff OR halt) Ubuntu shutdowns and the computer is off for about 4 seconds, then it restarts (a normal restart is much faster)
  - After this: If the computer is  switched off with the power button during the bootmenu or before: the computer will reboot again like before
  - After this: If the computer is switched off with the power button during the bootmenu or before a SECOND time: the computer stay off, but WOL don't work (The LED of the network card is on.)
  - If the power button is pressed a few seconds during the login screen of ubuntu (or later) to switch of the computer immediately: the computer doesn't restart (In detail: the computer starts for two seconds again and goes out, but I thinks it's normal for dell computer) and WOL works.

  We have tested:
  - Ubuntu 12.04 with all Updates (including backports)
  - Ubuntu 12.04 Live CD
  - Ubuntu 13.04 Live CD
  - Ubuntu 13.10 Live CD

  We tried to boot with acpi=noirq and disabling of WOL with ethtools (The network cards are in 'g' mode by default.), too.
  Unplugging the Ethernet cable don't help, too.

  What works:
  - use "halt -f"
  - power off by pressing the power button a few seconds 
  After this the computer can be started (power button or WOL) and switched off (again and again)
  But the issue re-appears if:
  - Windows is booted
  - BIOS is entered 
  - Computer is reboot from Ubuntu (poweroff and start again by power button or WOK is OK!)

  Sorry, I would provide some logs and further information, but I don't
  know which are useful. Please feel free to ask.

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