I did some more testing, trying to reproduce this. I did my usual "get dbus-daemon to go crazy because I'm running through a bunch of wifi networks" test in my neighborhood.
After getting my phone to be a bit overloaded, I still couldn't trigger this bug even once. But I did notice one oddity -- sometimes the phone screen wouldn't finish fading in to full brightness. It would then go to full brightness if I touched the screen. But that made me think that there is some mechanism/bug by which the fade-in early-exits. So what if this bug is an immediate early-exit to the fade? Then second press is actually accurately received as a turn- off-screen-please request (which flashes the screen to full brightness for a moment). And the third is a normal turn-on-request. Pure conjecture without much evidence. Just a thought. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1429887 Title: Sometimes need 3 power button presses to turn on screen To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1429887/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs