I also have this issue with my Meizu mx4. I have found a hard reboot is the only thing that gets my phone is able again. I find this happens when I have the camera set at the highest resolution although I haven't tried it at lower res. Doesn't seem to be an issue with the selfish camera.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1537774 Title: Viewfinder frozen and all buttons disabled after taking HDR picture To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1537774/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs