Comment 31 for bug 1767654

I confirm the bug
The bug applies to all the distros I have tried:
Ubuntu; Linux Mint; Manjaro; Fedora; Opensuse etc.
I also tried various DEs: Kde, Gnome, Cinnamon, Xfce, Mate etc.
It's a general problem, not just of mutter and Gnome
The bug exists only with Mesa and Modesetting, if you install xf86-video-intel (Arch and Manjaro), the mouse does not lock but the mouse flashes and multiplies
Also, when there is a lock, I noticed that the left side of the screen "unlocks", but the mouse starts flashing (with Mesa and Modesetting)
It happens especially when I watch videos in full screen or at 60fps on Youtube

Intel Celeron J3160, with Hdmi (I can't try with VGA)

Edit: yesterday I tried to download and boot through USB Ubuntu 14.04.6 unity 64 bit ... and surprise: the problem does not exist