I have the same problem on my work PC. Any time my monitor is put to sleep for inactivity, the video signal never returns within X. After the inactivity, I turn the monitor back on after it has shut off due to no signal, and moving the mouse/typing keys will not bring the signal back, monitor just says no signal. If I press ctrl+alt+f1 then I get a console and the monitor comes back to life. I have to restart lightdm (killing all my programs) to get back into X. dmesg only shows the following:
[4219918.274807] init: tty1 main process ended, respawning [4219923.733629] init: Failed to spawn hybrid-gfx main process: unable to execute: No such file or directory [4219924.646159] nvidia 0000:01:00.0: irq 49 for MSI/MSI-X -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to ubuntu-drivers-common in Ubuntu. https://bugs.launchpad.net/bugs/1366165 Title: No hybrid GPU and this error appears: Failed to spawn hybrid-gfx main process: unable to execute: No such file or directory Status in ubuntu-drivers-common package in Ubuntu: Confirmed Bug description: I have an nVidia 9800GT GPU and a Core 2 Duo CPU. Still, I get errors during startup: 32.281097] init: Failed to spawn hybrid-gfx main process: unable to execute: No such file or director ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: ubuntu-drivers-common 1:0.2.91.6 ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6 Uname: Linux 3.13.0-35-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.14.1-0ubuntu3.3 Architecture: amd64 Date: Fri Sep 5 18:31:30 2014 InstallationDate: Installed on 2012-03-26 (892 days ago) InstallationMedia: Mythbuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) SourcePackage: ubuntu-drivers-common UpgradeStatus: Upgraded to trusty on 2014-07-20 (47 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-drivers-common/+bug/1366165/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
