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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1323645 Title: [MacBookPro11,1] Suspend delayed because of some timeout issue To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1323645/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs