My Dell laptop running Ubuntu Linux 11.10 hangs reliably while shutting down for a reboot, but when I shutdown, it will complete successfully. How do I diagnose this? I don't know what log files I should go to in order to observe the relevant system events during the time of reboot/shutdown.

shutdown -r now; # This results in a hang during the Ubuntu shutdown splash.

shutdown -hP now; # This will work perfectly and quickly.

link|improve this question
You can start by disabling the splash and posting what messages the kernel outputs when rebooting. – new123456 Nov 22 '11 at 12:21
feedback

Know someone who can answer? Share a link to this question via email, Google+, Twitter, or Facebook.

Your Answer

 
or
required, but never shown

Browse other questions tagged or ask your own question.