I have an Acer Aspire E1 (ES1-311-P1D5) and I installed Ubuntu 14.10 on it. SecureBoot is enabled.

When I try to shutdown the system, it will stop but won't shutdown the computer itself. I've read that this is an ACPI issue, so I tried the kernel parameters 'acpi=off' and 'acpi=force'. It didn't work.

What else can I do now?

  • are you have shutdown via terminal (i mean cli mode by press ctrl+alt+F1) and next type shutdown -h now – creatorbe Nov 8 '14 at 8:44
  • This is due to problem realted to system updates they were not installed correctly or may have halted and sudo shutdown is a way to kill it. – Chinmaya B Nov 8 '14 at 9:27

I fixed the problem by updating my BIOS. Last time I checked there wasn't any update.

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