I can't confirm if this is a regression as this machine is brand new and I only had trusty on it for a little while before upgrading. This issue may be related to uefi booting, as suspend seemed to work when booting in legacy bios mode (but that had a bug that made the system unbootable after a while).
Tested the upstream kernel specified and the bug seems to be in that one, too. ** Description changed: As requested by apw, here is the bug report for suspend problem on - Macbook retina. The issue is that activating suspend seems to take - forever until the machine actually goes to sleep (which you can tell by - they keyboard backlight going off). The attached logs were gathered in - the following way: + Macbook retina. The issue is when activating suspend, the monitor turns + off but the machine gets fully suspended only some time later. The + actual start of suspend can be detected by they keyboard backlight going + off. The attached logs were gathered in the following way: - power cycle machine - suspend - wake up ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: linux-image-3.15.0-2-generic 3.15.0-2.6 ProcVersionSignature: Ubuntu 3.15.0-2.6-generic 3.15.0-rc6 Uname: Linux 3.15.0-2-generic x86_64 ApportVersion: 2.14.2-0ubuntu4 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: jpakkane 2097 F.... pulseaudio - /dev/snd/controlC1: jpakkane 2097 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC0: jpakkane 2097 F.... pulseaudio + /dev/snd/controlC1: jpakkane 2097 F.... pulseaudio CurrentDesktop: Unity Date: Tue May 27 15:54:53 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-05-22 (4 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64+mac (20140417) MachineType: Apple Inc. MacBookPro11,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.15.0-2-generic root=UUID=aec3f04d-865c-4f0f-9872-d8953e94278d ro quiet splash vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-3.15.0-2-generic N/A - linux-backports-modules-3.15.0-2-generic N/A - linux-firmware 1.129 + linux-restricted-modules-3.15.0-2-generic N/A + linux-backports-modules-3.15.0-2-generic N/A + linux-firmware 1.129 SourcePackage: linux UpgradeStatus: Upgraded to utopic on 2014-05-27 (0 days ago) dmi.bios.date: 02/12/2014 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP111.88Z.0138.B07.1402121134 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-189A3D4F975D5FFC dmi.board.vendor: Apple Inc. dmi.board.version: MacBookPro11,1 dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-189A3D4F975D5FFC dmi.modalias: dmi:bvnAppleInc.:bvrMBP111.88Z.0138.B07.1402121134:bd02/12/2014:svnAppleInc.:pnMacBookPro11,1:pvr1.0:rvnAppleInc.:rnMac-189A3D4F975D5FFC:rvrMacBookPro11,1:cvnAppleInc.:ct10:cvrMac-189A3D4F975D5FFC: dmi.product.name: MacBookPro11,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. -- 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/1323645 Title: [MacBookPro11,1] Suspend delayed because of some timeout issue Status in “linux” package in Ubuntu: Confirmed Bug description: As requested by apw, here is the bug report for suspend problem on Macbook retina. The issue is when activating suspend, the monitor turns off but the machine gets fully suspended only some time later. The actual start of suspend can be detected by they keyboard backlight going off. The attached logs were gathered in the following way: - power cycle machine - suspend - wake up ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: linux-image-3.15.0-2-generic 3.15.0-2.6 ProcVersionSignature: Ubuntu 3.15.0-2.6-generic 3.15.0-rc6 Uname: Linux 3.15.0-2-generic x86_64 ApportVersion: 2.14.2-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jpakkane 2097 F.... pulseaudio /dev/snd/controlC1: jpakkane 2097 F.... pulseaudio CurrentDesktop: Unity Date: Tue May 27 15:54:53 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-05-22 (4 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64+mac (20140417) MachineType: Apple Inc. MacBookPro11,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.15.0-2-generic root=UUID=aec3f04d-865c-4f0f-9872-d8953e94278d ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.15.0-2-generic N/A linux-backports-modules-3.15.0-2-generic N/A linux-firmware 1.129 SourcePackage: linux UpgradeStatus: Upgraded to utopic on 2014-05-27 (0 days ago) dmi.bios.date: 02/12/2014 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP111.88Z.0138.B07.1402121134 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-189A3D4F975D5FFC dmi.board.vendor: Apple Inc. dmi.board.version: MacBookPro11,1 dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-189A3D4F975D5FFC dmi.modalias: dmi:bvnAppleInc.:bvrMBP111.88Z.0138.B07.1402121134:bd02/12/2014:svnAppleInc.:pnMacBookPro11,1:pvr1.0:rvnAppleInc.:rnMac-189A3D4F975D5FFC:rvrMacBookPro11,1:cvnAppleInc.:ct10:cvrMac-189A3D4F975D5FFC: dmi.product.name: MacBookPro11,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. 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