You have been subscribed to a public bug: I asked in #ubuntu-desktop and people couldn't reproduce this in vivid or trusty. It happened for me in the most recent wily iso.
Open the indicator, click one of the greyed dates at the start or end of the month (sometimes requires more than one go). The active date starts to repeatedly jump between this date and another one. I ran with G_MESSAGES_DEBUG=all and when it's happening this is spammed (I clicked a date in 2015-05). (process:32382): Indicator-Datetime-DEBUG: PlannerMonth 0x2727310 setting calendar month range: [2015-05-01 00:00:00..2015-05-31 23:59:59] (process:32382): Indicator-Datetime-DEBUG: 0x2728730 setting date range to [2015-05-30 00:00:00..2015-06-30 00:00:00] (process:32382): Indicator-Datetime-DEBUG: rebuilding because the date range changed (process:32382): Indicator-Datetime-DEBUG: PlannerMonth 0x2727310 setting calendar month range: [2015-05-01 00:00:00..2015-05-31 23:59:59] (process:32382): Indicator-Datetime-DEBUG: 0x2728730 setting date range to [2015-05-29 00:00:00..2015-06-29 00:00:00] (process:32382): Indicator-Datetime-DEBUG: rebuilding because the date range changed (process:32382): Indicator-Datetime-DEBUG: PlannerMonth 0x2727310 setting calendar month range: [2015-05-01 00:00:00..2015-05-31 23:59:59] (process:32382): Indicator-Datetime-DEBUG: 0x2728730 setting date range to [2015-05-30 00:00:00..2015-06-30 00:00:00] (process:32382): Indicator-Datetime-DEBUG: rebuilding because the date range changed (process:32382): Indicator-Datetime-DEBUG: PlannerMonth 0x2727310 setting calendar month range: [2015-05-01 00:00:00..2015-05-31 23:59:59] (process:32382): Indicator-Datetime-DEBUG: 0x2728730 setting date range to [2015-05-29 00:00:00..2015-06-29 00:00:00] (process:32382): Indicator-Datetime-DEBUG: rebuilding because the date range changed (process:32382): Indicator-Datetime-DEBUG: PlannerMonth 0x2727310 setting calendar month range: [2015-05-01 00:00:00..2015-05-31 23:59:59] (process:32382): Indicator-Datetime-DEBUG: 0x2728730 setting date range to [2015-05-30 00:00:00..2015-06-30 00:00:00] (process:32382): Indicator-Datetime-DEBUG: rebuilding because the date range changed (process:32382): Indicator-Datetime-DEBUG: PlannerMonth 0x2727310 setting calendar month range: [2015-05-01 00:00:00..2015-05-31 23:59:59] (process:32382): Indicator-Datetime-DEBUG: 0x2728730 setting date range to [2015-05-29 00:00:00..2015-06-29 00:00:00] (process:32382): Indicator-Datetime-DEBUG: rebuilding because the date range changed ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: indicator-datetime 13.10.0+15.10.20150728-0ubuntu1 ProcVersionSignature: Ubuntu 4.1.0-2.2-generic 4.1.3 Uname: Linux 4.1.0-2-generic x86_64 ApportVersion: 2.18-0ubuntu5 Architecture: amd64 CurrentDesktop: Unity Date: Fri Jul 31 17:09:43 2015 InstallationDate: Installed on 2012-10-07 (1026 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Beta amd64 (20121007) SourcePackage: indicator-datetime UpgradeStatus: Upgraded to wily on 2013-05-07 (815 days ago) ** Affects: gtk+3.0 (Ubuntu) Importance: Undecided Status: In Progress ** Tags: amd64 apport-bug third-party-packages wily -- Clicking a date to go back or forward a month causes repeated jumps between two dates https://bugs.launchpad.net/bugs/1480387 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gtk+3.0 in Ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs