For a data point, I've seen this a couple times before the timerfd stuff landed. So I'm pretty sure that isn't the culprit.
I've not been able to recreate it reliably. But with U8 in Vivid, I've been rebooting a lot :-) ** Changed in: indicator-datetime (Ubuntu) Importance: Undecided => High ** Changed in: indicator-datetime (Ubuntu) Status: New => Confirmed ** Summary changed: - Sometimes indicator-datetime is not available in the UI after a reboot (vivid/mako 110) + Sometimes indicator-datetime is not available in the UI after a reboot (vivid/mako) -- You received this bug notification because you are a member of DX Packages, which is subscribed to indicator-datetime in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/1425297 Title: Sometimes indicator-datetime is not available in the UI after a reboot (vivid/mako) Status in indicator-datetime package in Ubuntu: Confirmed Bug description: current build number: 110 device name: mako channel: ubuntu-touch/vivid-proposed last update: 2015-02-24 04:34:45 version version: 110 version ubuntu: 20150224 version device: 20150210 version custom: 20150224 See the attached picture. The only log entry I have for it: Indicator-Datetime-Message: static gboolean unity::indicator::datetime::LiveClock::Impl::on_timerfd_cond(gint, GIOCondition, gpointer) triggered at 2015-02-24 20:24:48.605449 by GIOCondition 1, read -1 bytes, found 0 interrupts To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-datetime/+bug/1425297/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp