Comment 0 for bug 1456084

When I leave my Lenovo Yoga 2 idle for about 10 seconds, the screen turns black. After about 10 seconds the screen turns on again.
I'm experiencing this problem since switching to Ubuntu Gnome 15.10. Sometimes I can get fix it by rebooting the system, but the problem reappears after some time; sometimes the problem disappears from itself.

All power settings are changed to never dim screen brightness or blank the screen. The notebook is connected to the power supply.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: gnome-shell 3.14.4-0ubuntu1
ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
Uname: Linux 3.19.0-16-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
CurrentDesktop: GNOME
Date: Mon May 18 09:33:11 2015
DisplayManager: gdm
GsettingsChanges:
 b'org.gnome.shell.calendar' b'show-weekdate' b'true'
 b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'"
 b'org.gnome.desktop.interface' b'clock-show-date' b'true'
InstallationDate: Installed on 2015-04-27 (20 days ago)
InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422)
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)