I tested the mainline kernel as requested and the bug still exists. ** Tags added: kernel-bug-exists-upstream
** Description changed: - I updated ubuntu sep 30. + I updated ubuntu sep 30. Among other updates was kernel 3.8.0-31.46 After updating and rebooting I get grub, select ubuntu as always, then instead of going to the unity-greeter login screen I just get a black screen with a blinking cursor in the top left and a mouse cursor i can move around. If I press CTRL-ALT-F1 and login i can write “sudo service lightdm --full-restart" and then I get login screen and everything is normal. If I use the previous kernel 3.8.0-30 everything works like normal. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-3.8.0-30-generic 3.8.0-30.44 ProcVersionSignature: Ubuntu 3.8.0-30.44-generic 3.8.13.6 Uname: Linux 3.8.0-30-generic x86_64 ApportVersion: 2.9.2-0ubuntu8.3 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: laeb 2134 F.... pulseaudio - /dev/snd/controlC1: laeb 2134 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC0: laeb 2134 F.... pulseaudio + /dev/snd/controlC1: laeb 2134 F.... pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Date: Mon Sep 30 13:16:19 2013 HibernationDevice: RESUME=UUID=e9e3c42a-9205-4ad8-b97f-fd890621a694 InstallationDate: Installed on 2013-08-29 (31 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) IwConfig: - eth0 no wireless extensions. - - lo no wireless extensions. + eth0 no wireless extensions. + + lo no wireless extensions. MachineType: Dell Inc. OptiPlex 9010 MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-30-generic root=UUID=10c2ca64-ed49-4e2d-9e2f-e6fd226b23f8 ro quiet splash vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-3.8.0-30-generic N/A - linux-backports-modules-3.8.0-30-generic N/A - linux-firmware 1.106 + linux-restricted-modules-3.8.0-30-generic N/A + linux-backports-modules-3.8.0-30-generic N/A + linux-firmware 1.106 RfKill: - + SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/11/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A14 dmi.board.name: 00F82W dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 6 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA14:bd06/11/2013:svnDellInc.:pnOptiPlex9010:pvr01:rvnDellInc.:rn00F82W:rvrA00:cvnDellInc.:ct6:cvr: dmi.product.name: OptiPlex 9010 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1233110 Title: Black screen with blinking cursor and moveable mouse cursor after latest kernel upgrade Status in “linux” package in Ubuntu: Confirmed Bug description: I updated ubuntu sep 30. Among other updates was kernel 3.8.0-31.46 After updating and rebooting I get grub, select ubuntu as always, then instead of going to the unity-greeter login screen I just get a black screen with a blinking cursor in the top left and a mouse cursor i can move around. If I press CTRL-ALT-F1 and login i can write “sudo service lightdm --full-restart" and then I get login screen and everything is normal. If I use the previous kernel 3.8.0-30 everything works like normal. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-3.8.0-30-generic 3.8.0-30.44 ProcVersionSignature: Ubuntu 3.8.0-30.44-generic 3.8.13.6 Uname: Linux 3.8.0-30-generic x86_64 ApportVersion: 2.9.2-0ubuntu8.3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: laeb 2134 F.... pulseaudio /dev/snd/controlC1: laeb 2134 F.... pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Date: Mon Sep 30 13:16:19 2013 HibernationDevice: RESUME=UUID=e9e3c42a-9205-4ad8-b97f-fd890621a694 InstallationDate: Installed on 2013-08-29 (31 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: Dell Inc. OptiPlex 9010 MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-30-generic root=UUID=10c2ca64-ed49-4e2d-9e2f-e6fd226b23f8 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.8.0-30-generic N/A linux-backports-modules-3.8.0-30-generic N/A linux-firmware 1.106 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/11/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A14 dmi.board.name: 00F82W dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 6 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA14:bd06/11/2013:svnDellInc.:pnOptiPlex9010:pvr01:rvnDellInc.:rn00F82W:rvrA00:cvnDellInc.:ct6:cvr: dmi.product.name: OptiPlex 9010 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. 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