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[Colin D Bennett <colin@xxxxxxxxxxx>]

I haven't actually done anything to try to fix the reboot problem.  My
/var/log/messages unfortunately doesn't show anything interesting after
a reboot.  It just looks like this:

Apr 22 08:42:53 svelte kernel: [76362.012307] PM: resume devices took 3.096 seconds
Apr 22 08:42:53 svelte kernel: [76362.013151] Restarting tasks ... done.
Apr 22 08:42:53 svelte kernel: [76362.776528] eth0: no link during initialization.
Apr 22 08:42:53 svelte kernel: [76362.777333] ADDRCONF(NETDEV_UP): eth0: link is not ready
Apr 22 09:02:20 svelte exiting on signal 15
Apr 22 09:04:50 svelte syslogd 1.5.0#5ubuntu3: restart.
Apr 22 09:04:50 svelte kernel: Inspecting /boot/System.map-2.6.28-11-generic
Apr 22 09:04:50 svelte kernel: Cannot find map file.
Apr 22 09:04:50 svelte kernel: Loaded 76599 symbols from 48 modules.
Apr 22 09:04:50 svelte kernel: [    0.000000] BIOS EBDA/lowmem at: 0009fc00/0009fc00
Apr 22 09:04:50 svelte kernel: [    0.000000] Initializing cgroup subsys cpuset
Apr 22 09:04:50 svelte kernel: [    0.000000] Initializing cgroup subsys cpu
Apr 22 09:04:50 svelte kernel: [    0.000000] Linux version 2.6.28-11-generic (buildd@crested) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #42-Ubuntu SMP Fri Apr 17 01:58:03 UTC 2009 (Ubuntu 2.6.28-11.42-generic)
Apr 22 09:04:50 svelte kernel: [    0.000000] Command line: root=UUID=79fb814c-b4fa-4660-a804-af9118fb9ff3 ro quiet splash 

There's no entry regarding the reboot itself, only messages from the
kernel as it was booting up again after reboot.  I do get a weird screen
right before Linux reboots that has a bunch of green vertical lines and
the message "Restarting system" behind the lines.  This screen shows for
about one second before the machine actually reboots.

I'm not sure what else could be different on my machine.  I did add the
modprobe options needed to get sound partially working (right speaker
only):

options snd-hda-intel model=mbp3

I wonder if I'm the only one whose machine decided to start working?

-- 
[Jaunty] MacBook 5.1 will not reboot (Restart).
https://bugs.launchpad.net/bugs/338083
You received this bug notification because you are a member of Mactel
Support, which is the registrant for Mactel Support.

Status in Mactel Support: Confirmed
Status in “linux-meta” source package in Ubuntu: New

Bug description:
As of Jaunty (Ubuntu 9.04) Alpha 5, with kernel 2.6.28-8-generic, the MacBook 5.1 will hang upon attempts to reboot (restart). The screen will go blank black, and the system will hang indefinitely. I suppose this is an improvement over Intrepid (Ubuntu 8.10), where the computer would both hang and make very loud beeping noises. :-) Still, I'm marking this as a bug since reboot is currently not possible.