Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.12 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc3-trusty/ ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1250909 Title: Trusty linux kernel 3.12.0-2 doesn't boot on Macbook Pro 8,2 Status in “linux” package in Ubuntu: Incomplete Bug description: After upgrading from Saucy to Trusty, the 3.12.0-2 kernel doesn't fully boot on my machine. I have to use the older 3.11 kernel to boot. The 3.12.0 kernel tries to boot but then seems to fail at some stage. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-2-generic 3.12.0-2.5 ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3 Uname: Linux 3.11.0-12-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.12.6-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: shadeslayer 2482 F.... pulseaudio /dev/snd/controlC0: shadeslayer 2482 F.... pulseaudio Date: Wed Nov 13 16:56:49 2013 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=0d23fd6f-b835-411a-af8b-c1d7a07cbf91 InstallationDate: Installed on 2013-10-31 (12 days ago) InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: Apple Inc. MacBookPro8,2 MarkForUpload: True ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: \boot\vmlinuz-3.11.0-12-generic ro root=UUID=ff872e15-889d-4f71-b33f-176cf27e2f12 initrd=boot\initrd.img-3.11.0-12-generic RelatedPackageVersions: linux-restricted-modules-3.11.0-12-generic N/A linux-backports-modules-3.11.0-12-generic N/A linux-firmware 1.117 SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2013-10-31 (12 days ago) dmi.bios.date: 01/24/12 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP81.88Z.0047.B27.1201241646 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-94245A3940C91C80 dmi.board.vendor: Apple Inc. dmi.board.version: MacBookPro8,2 dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-94245A3940C91C80 dmi.modalias: dmi:bvnAppleInc.:bvrMBP81.88Z.0047.B27.1201241646:bd01/24/12:svnAppleInc.:pnMacBookPro8,2:pvr1.0:rvnAppleInc.:rnMac-94245A3940C91C80:rvrMacBookPro8,2:cvnAppleInc.:ct10:cvrMac-94245A3940C91C80: dmi.product.name: MacBookPro8,2 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1250909/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp