I don't know if this is a unity-greeter bug or a bug in acpid's /etc/acpi/powerbtn.sh
It looks to me as if /etc/acpi/powerbtn.sh tries hard to find the X user to figure out what to do but that when unity-greeter is running there is no user. Mind you, /etc/acpi/powerbtn.sh ends with "if all else fails, shutdown -h now".
Before unity-greeter, this wasn't a problem.
All-in-all, I'd guess that this is a unity-greeter bug.
Why do I care? Because sometimes my computer is headless and it is awkward to shut it down cleanly without the power button functioning as it should.
I experience this bug in 11.10 + updates for AMD64. There are other sightings on the web: /lists. ubuntu. com/archives/ ubuntu- uk/2011- December/ 032588. html> /forums. virtualbox. org/viewtopic. php?f=3& t=46554>
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I don't know if this is a unity-greeter bug or a bug in acpid's /etc/acpi/ powerbtn. sh
It looks to me as if /etc/acpi/ powerbtn. sh tries hard to find the X user to figure out what to do but that when unity-greeter is running there is no user. Mind you, /etc/acpi/ powerbtn. sh ends with "if all else fails, shutdown -h now".
Before unity-greeter, this wasn't a problem.
All-in-all, I'd guess that this is a unity-greeter bug.
Why do I care? Because sometimes my computer is headless and it is awkward to shut it down cleanly without the power button functioning as it should.