This is what happens when the bug starts to show: On the Nexus 4, the edge drag areas are 36 pixels wide. When you do a left edge drag, the touch-press event hits the screen at x=45, so already past the left edge drag area (launcherDragArea), as this log snippet shows:
""" --------- EdgeDragAreas ------- EdgeDragArea_QMLTYPE_1_QML_248 "spreadDragArea" enabled=true visible=true sceneRect=QRectF(732,0 36x1280) EdgeDragArea_QMLTYPE_1 "launcherDragArea" enabled=true visible=true sceneRect=QRectF(0,0 36x1280) ------------------------------- ---------- Touch Pressed id=64 pos=(45.4704,547.286) ----------- """ Thus somehow the edges of the touch screen seem to get "numb" after some idle time... A simple fix (or workaround) would be to simply increase the thickness of the edge drag areas. This would have no side-effects as edge drag areas consume only edge-drag gestures. Taps near the edges would still reach the foreground app -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity8 in Ubuntu. https://bugs.launchpad.net/bugs/1408263 Title: Edge gestures still get lost Status in unity8 package in Ubuntu: In Progress Bug description: There are still cases where edge gestures are lost. Over the christmas holidays It happened about 5 times to me (in 2 weeks). Only way to recover is to reboot the phone. It always happened while the phone was in my pocket. When pulling it out of the pocket the edge gestures (launcher and right edge) were gone. This is most likely related to random taps on the screen, maybe in combination with the display toggling on/off. Haven't found a way yet to manually trigger it. Will keep on trying. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1408263/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
