14.10 incorrect behavior for suspend when inactive

[Eric Levy]

Assume that "Suspend when inactive for" values in "System Settings / Power" are set to "5 minutes" and "Don't suspend" for columns "On battery power" and "When plugged in".

Now assume that the system has been plugged in and inactive for 6 minutes.

Finally, assume that the system becomes unplugged.

In Ubuntu 14.04, the system does not suspend. The 5 minute countdown to automatic suspend begins when the unplug event occurs, such that the timeout event occurs 5 minutes later.

This behavior is correct.

In Ubuntu 14.10, the system automatically suspends immediately after the unplug event occurs.

This behavior is incorrect.

Or minimally, this behavior is undesired in the normal case. The 5 minute timeout was intended to protect against battery energy being drained during a continued period of the system being inactive AND unplugged. In this case, in contrast, the period of the system being unplugged just began. There has been no continued period of the system being inactive AND unplugged.

This difference represents a regression in functionality for the 14.04 to 14.10 upgrade.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1415653/+editstatus and add the package name in the text box next to the word Package.

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[Eric Levy (8mabmzqcnyc1g4i7tjyvuprzli-contact-clubl5mz6ldresgvtiayqw6wzb)]

Setting package, although this setting may be incorrect.