Comment 0 for bug 1324762

My MacBookPro 8,1 (Early 2011, 13") will not boot using any trusty kernel linux-image-3.13.0-20-generic or later, unless the noefi kernel param is set.

When booting linux-image-3.13.0-20-generic or later without the noefi param, I get a grey rectangle displayed, centred, filling most of the screen, and the system hangs. If booting into rescue mode without noefi (i.e. without quiet, splash, vt.redirect, etc.), I see the following (roughly, from memory...)

> Loading vmlinuz-3.13.0-27-generic...
> Loading initrd.img-3.13.0-27-generic...

Then the system hangs. In either case, on reboot I'm dropped automatically into the GRUB menu.

To boot in EFI mode, I keep linux-image-3.13.0-19-generic around - which works fine. Booting a latter kernel works if I specify noefi, however gfx and disk performance suffers, and features such as the monitor brightness keys fail to work altogether.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-27-generic 3.13.0-27.50
ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
Uname: Linux 3.13.0-27-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: mjg 3074 F.... pulseaudio
CurrentDesktop: GNOME
Date: Fri May 30 13:34:24 2014
HibernationDevice: RESUME=UUID=a1bf347c-6af0-4ee2-9091-90d1cf6b93c7
InstallationDate: Installed on 2011-06-03 (1091 days ago)
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: Apple Inc. MacBookPro8,1
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-27-generic root=UUID=e7b2b4af-7419-44ef-a93d-9b0f59f2d002 ro recovery nomodeset noexec=off noefi
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-27-generic N/A
 linux-backports-modules-3.13.0-27-generic N/A
 linux-firmware 1.127.2
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2014-02-28 (90 days ago)
dmi.bios.date: 04/22/11
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP81.88Z.0047.B0E.1104221557
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-94245B3640C91C81
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro8,1
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-94245B3640C91C81
dmi.modalias: dmi:bvnAppleInc.:bvrMBP81.88Z.0047.B0E.1104221557:bd04/22/11:svnAppleInc.:pnMacBookPro8,1:pvr1.0:rvnAppleInc.:rnMac-94245B3640C91C81:rvrMacBookPro8,1:cvnAppleInc.:ct10:cvrMac-94245B3640C91C81:
dmi.product.name: MacBookPro8,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.