amd64+mac ISO daily build + 2009/2010 clamshell Macbook does not restart.

[JaSauders]

Hello friends. I'm running a 2009/2010 clamshell Macbook with today's (April 4th 2014) daily build fully updated. I noticed I can not restart the computer. When I shut down, it works fine. It also goes through its full startup just fine. When I select restart from the menu, I see the splash screen (which is very jagged and unreadable). I see the scattered dots highlight red to indicate progress once or twice, then they lock up. The system never actually restarts and I must hold down the power button to force it off before I can restart again. This is also true when I issue 'sudo reboot' from the terminal.

Thank you for your time!

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-22-generic 3.13.0-22.44
ProcVersionSignature: Ubuntu 3.13.0-22.44-generic 3.13.8
Uname: Linux 3.13.0-22-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jason 1888 F.... pulseaudio
CurrentDesktop: Unity
Date: Fri Apr 4 15:48:06 2014
HibernationDevice: RESUME=UUID=916319a9-c577-4321-a5a9-666cb1904590
InstallationDate: Installed on 2014-04-04 (0 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily amd64+mac (20140404)
MachineType: Apple Inc. MacBook6,1
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-22-generic root=UUID=ff973b06-cfee-499c-803a-e740e2e2b040 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-22-generic N/A
 linux-backports-modules-3.13.0-22-generic N/A
 linux-firmware 1.127
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/15/10
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MB61.88Z.00C8.B02.1003151501
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-F22C8AC8
dmi.board.vendor: Apple Inc.
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F22C8AC8
dmi.modalias: dmi:bvnAppleInc.:bvrMB61.88Z.00C8.B02.1003151501:bd03/15/10:svnAppleInc.:pnMacBook6,1:pvr1.0:rvnAppleInc.:rnMac-F22C8AC8:rvr:cvnAppleInc.:ct10:cvrMac-F22C8AC8:
dmi.product.name: MacBook6,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Does this issue go away if you boot into an earlier Trusty kernel?

[JaSauders (jasauders)]

The only kernels I was able to test were 22-generic and 23-generic of 3.13. Both yielded the exact same results.