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Since i installed Ubuntu on my Medion Akoya E7214, i have funny problems. It took some time to realize this. With standard settings, my computer woke up every midnight. That annoyed a lot. So i searched and found, that acpi is the problem.

  • I tried to boot with option acpi=off (in /boot/grub/grub.cfg in the kernel-statement of the menu). But now the shutdown isn't working well. I have to switch power off manually and it seems to shut down much more slowly.
  • Now, i tried acpi=noirq and i had no keyboard anymore. Fortunately, i had an external keyboard to make changes back.

I changed it to acpi=off again. But this isn't what i really want.

Can anyone give me a clue how to deactivate this wakeup on midnight without deactivating whole acpi? This seems to be a bug somewhere.

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1 Answer 1

Reset to default
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Disabing ACPI should be a last resort, in case you've almost given up. Check your BIOS settings whether you have a scheduled wakeup, it's called Resume by Alarm on AWARD BIOSes.

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  • I wandered about that, but there is no BIOS setting about that. I have an American Megatrends BIOS and there is nothing about Alarm or ACPI or wakeup to set in it.
    – LukeST
    Jan 31, 2012 at 19:01
  • It could be a combination of BIOS settings and a cron. Check your /var/log/syslog file for events after midnight.
    – Lekensteyn
    Jan 31, 2012 at 21:01
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    I found it! It was a simple BIOS-bug. With a BIOS-update the problem is solved. No nightly wakeup (for my computer and also for me) but good sleep. Thank you for your help.
    – LukeST
    Feb 2, 2012 at 7:33

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