On 17.04 I have a very similar problem. The Software Updater icon in the Unity launch bar has turned green to indicate that updates are available. When I click on that icon it gains an orange "halo" indicating that the system knows that it has been selected, but no window opens. I cannot manually start the Software Updater. I have to reboot in order to run the Software Updater. xwininfo knows the window is there but nobody else does. I have had this problem for over a month and I would really appreciate some guidance.
$ xwininfo -name "Software Updater" xwininfo: Window id: 0x3200008 "Software Updater" Absolute upper-left X: 769 Absolute upper-left Y: 384 Relative upper-left X: 769 Relative upper-left Y: 384 Width: 447 Height: 335 Depth: 24 Visual: 0x300 Visual Class: TrueColor Border width: 0 Class: InputOutput Colormap: 0x3200007 (not installed) Bit Gravity State: NorthWestGravity Window Gravity State: NorthWestGravity Backing Store State: NotUseful Save Under State: no Map State: IsUnMapped Override Redirect State: no Corners: +769+384 -704+384 -704-361 +769-361 -geometry 447x335+769+384 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1671540 Title: Software Updater window is invisible To manage notifications about this bug go to: https://bugs.launchpad.net/update-notifier/+bug/1671540/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
