This bug is still present in the release of Precise, and it not limited to nVidia cards (I have an ATI Radeon HD6870 using the binary driver). Exact same symptoms as the original reporter: computer is still alive and running, but all I havbe when this triggers is a black screen and a movable mouse cursor. I have to ctrl-alt-F1 and reboot to recover (restarting X isn't enough). I run XFCE and xscreensaver, not gnome, so clearly the problem is somewhere lower-level.
I find this happens mostly when I come back from suspend, but not always - sometimes it happens if I just leave the computer idle and in the screensaver for long enough. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-screensaver in Ubuntu. https://bugs.launchpad.net/bugs/948180 Title: Ubuntu 12.04 beta1: screen remains blank after screen saver (nvidia) Status in “gnome-screensaver” package in Ubuntu: Confirmed Bug description: Ubuntu 12.04 beta1 Steps to reproduce: * Install nvidia driver as recommended * Go somewhere and wait a few minutes * Return to PC, screen is black * Move mouse Expected result: * Unlock screen Actual result: * Black screen, only mouse cursor visible Additional info: Bug is present for years and has apparently never been fixed --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.94.1-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: devvv 1777 F.... pulseaudio /dev/snd/controlC0: devvv 1777 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xfa100000 irq 46' Mixer name : 'Realtek ALC889A' Components : 'HDA:10ec0885,1458a002,00100101' Controls : 49 Simple ctrls : 23 Card1.Amixer.info: Card hw:1 'NVidia'/'HDA NVidia at 0xf7000000 irq 17' Mixer name : 'Nvidia GPU 10 HDMI/DP' Components : 'HDA:10de0010,10de0101,00100100' Controls : 24 Simple ctrls : 4 DistroRelease: Ubuntu 12.04 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301) IwConfig: lo no wireless extensions. eth0 no wireless extensions. MachineType: Gigabyte Technology Co., Ltd. P35-DS4 NonfreeKernelModules: nvidia Package: linux (not installed) ProcEnviron: LANGUAGE=de_AT:de TERM=xterm LANG=de_AT.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-18-generic root=UUID=592a5e07-5c7b-40b7-9609-a6badaae242b ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9 RelatedPackageVersions: linux-restricted-modules-3.2.0-18-generic N/A linux-backports-modules-3.2.0-18-generic N/A linux-firmware 1.71 RfKill: Tags: precise Uname: Linux 3.2.0-18-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 06/19/2009 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F14 dmi.board.name: P35-DS4 dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF14:bd06/19/2009:svnGigabyteTechnologyCo.,Ltd.:pnP35-DS4:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnP35-DS4:rvr:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: P35-DS4 dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/948180/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
