iOS and (reportedly) Windows Phone always wake the display for a few seconds -- just as if you had tapped the home button or pressed the sleep/wake button -- when a notification arrives of the sort that appears on the lock screen.
Android used to do the same, but as of 5.0 apparently no longer does, unless you (a) turn on the "Ambient display" setting, (b) use a Motorola and leave on the "Active display" setting, or (c) install an app like Glimpse Notifications. ("Using Android Lollipop's lock screen notifications? Tired of having to press the power button to see them? Then this app is for you!") For Ubuntu, the relevant part of the spec says: "If the screen display is off (black), the expected behaviour is to wake the phone by simply tapping on the screen or by using the physical button on the side. Once the display is active, user can interact with the notification bubbles." <https://goo.gl/bh9KHi> I think a couple of points need clearing up: 1. Should tapping the screen *normally* wake the phone, or is this behavior specific to a certain period after a notification has arrived? If the former, it would help to link to the relevant spec. If the latter, how long is the period? 2. If a notification would play a sound, should this sound still play even when the screen does not wake up? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to indicator-messages in Ubuntu. https://bugs.launchpad.net/bugs/1445106 Title: [Notifications] turn the screen on Status in Ubuntu UX bugs: Triaged Status in indicator-messages package in Ubuntu: Confirmed Bug description: Built: r20 When getting a notification, such as a text message, the screen will turn on. This becomes a problem when the device is kept in a pocket, where it may falsely register screen activity and thus stay on for hours. -----UX comment----- Please refer for the correct behaviour here: https://docs.google.com/a/canonical.com/document/d/1xDSZ_dnAMAlhgFnnyjJEibaITXjVLp1_pnj_tATNm9I/edit?pli=1# To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-ux/+bug/1445106/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp