I too noticed this but a while back. Am on rc-proposed and since sometime in prep of OTA7 this went away, or at least dramatically decreased in frequency.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity-system-compositor in Ubuntu. https://bugs.launchpad.net/bugs/1512100 Title: Meizu MX4 (Arale r6=OTA7) - Blinking screen during the call if you remove the phone from your ear Status in Canonical System Image: Confirmed Status in powerd package in Ubuntu: New Status in unity-system-compositor package in Ubuntu: New Bug description: I have a problem with my Meizu MX4 (Arale r6). During a call if you remove the phone from your ear, sometimes (not always) the screen remains turned off. When you try to push the power button to wake up the screen, that starts blinking and it's not possible to hang up. The screen remains in that condition even after the end of the call. When it keeps blinking I try to hold the button down and in few seconds the screen turns black and the phone starts working again. Sometimes, instead, it starts working again by itself. To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1512100/+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