apport information ** Tags added: apport-collected
** Description changed: I upgraded my xubuntu 13.10 to 14.04 recently. When I turn the monitor off and on, it only shows "no input signal". I have to restart x to bring it back to work. This never happened on 13.10. Booting from xubuntu 14.04 livecd or a clean installion of xubuntu 14.04 gives the same problem. I tried xset dpms force off/suspend/standby, the monitor works fine after resuming. So i suppose it's not dpms to blame. My graphics card is Intel HD4600 and my monitor is Dell UP3214Q. The monitor is connected with a displayport cable. Enable or disable the displayport 1.2 setting of the monitor doesn't change anything. This issue does not occurs on another computer (with nVidia gfx card+Dell U2713HM+DVI cable) Reinstall 13.10 solved the problem. + --- + ApportVersion: 2.14.1-0ubuntu3 + Architecture: amd64 + CasperVersion: 1.340 + DistroRelease: Ubuntu 14.04 + LiveMediaBuild: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2) + Package: xfce4-power-manager 1.2.0-3ubuntu4 + PackageArchitecture: amd64 + ProcEnviron: + TERM=xterm + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/bin/bash + ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 + Tags: trusty + Uname: Linux 3.13.0-24-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: + + _MarkForUpload: True ** Attachment added: "Dependencies.txt" https://bugs.launchpad.net/bugs/1313539/+attachment/4100907/+files/Dependencies.txt ** Changed in: xfce4-power-manager (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1313539 Title: monitor shows black screen and "no input signal" after turning the monitor off and on manually To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xfce4-power-manager/+bug/1313539/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
