I'm on 12.10 kernel 3.5.0-25 and I'm booting off an SSD (which seems to be a common symptom).
When the blanks screen occurs, I know it wants the FS crypt password. So I type it in blind on this black screen. Then the rest of boot occurs normally. I never see the Grub screen. I tried adding a 5 second sleep before the "exec lightdm" line on /etc/init/lightdm.conf. This did not solve the problem. My adapter is: Advanced Micro Devices [AMD] nee ATI RS780 [Radeon HD 3200] Linux 3.5.0-25-generic #39-Ubuntu SMP Mon Feb 25 18:26:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/969489 Title: lightdm tries (and fails) to start too early? Status in Upstart: New Status in “lightdm” package in Ubuntu: Confirmed Bug description: Sometimes lightdm comes up fine. Other times it appears to fail. x-0.log shows it tried to load 'nv' (rather than 'nvidia' which is what actually exists). When I then log into console and 'start lightdm', it comes up fine (on :1). I've not had it come up ok today, so I don't know if, when it comes up fine, it starts on :0. No idea if the lightdm.conf needs a change to 'start on'clause, or if this is just a case of a bad shipped config file (for module 'nv'). ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: lightdm 1.1.9-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-20.33-generic 3.2.12 Uname: Linux 3.2.0-20-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.0-0ubuntu1 Architecture: amd64 Date: Fri Mar 30 13:40:27 2012 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120323) ProcEnviron: TERM=xterm PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/upstart/+bug/969489/+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
