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[Launchpad Bug Tracker <1275590@xxxxxxxxxxxxxxxxxx>]

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Board: ASrock H87M pro4, with the latest BIOS P2.0; Ubuntu is 12.04 64b
w/ Kernel 3.5.0-45

1) I do shut the computer down from the menu OR with the command line
"poweroff" OR "shutdown -P now"

2) It totally shuts down, all fans, all leds, the screen.

3) It stays off for a few secs, fooling me.

4) Then it restarts, powering itself back on.

The only way to impede the restart is to switch off the power supply on
the back of the case at 3). Doing so, it still tries to do 4). You hear
the fans starting, but the little charge remaining in the the power unit
gets discharged in a moment and it stops there. It's off.

This problem started around mid Jan (after months of regular
functioning), when I updated the Linux Kernel to 3.5.0-44.

It's certainly caused by the Kernel as it does NOT occur with v 3.5.0-41 and below. It occurs with Kernel 3.5.0-44 and above.
I Cannot say if it occurs with 42, 43.

It was verified this problem does NOT occur with Windows OS.

** Affects: linux (Ubuntu)
     Importance: Low
         Status: Incomplete


** Tags: 12.04 bot-comment shutdown
-- 
Computer always powers itself up after shut down
https://bugs.launchpad.net/bugs/1275590
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