Public bug reported: Until a few weeks ago suspend worked perfectly on my 2012 11" MacBook Air. Since that time however it has become very unreliable.
If I close the lid to suspend and reopen within a short period of time it resumes and all is fine. If left longer eg overnight then on opening the lid the system is off and on power on cold boots. last will show this as a crash. cat /proc/version_signature Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1 ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-27-generic 4.2.0-27.32 ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1 Uname: Linux 4.2.0-27-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: moon127 2454 F.... pulseaudio /dev/snd/controlC1: moon127 2454 F.... pulseaudio /dev/snd/controlC0: moon127 2454 F.... pulseaudio CurrentDesktop: MATE Date: Thu Feb 18 11:05:32 2016 InstallationDate: Installed on 2015-07-29 (203 days ago) InstallationMedia: Ubuntu-MATE 15.04 "Vivid Vervet" - Release amd64 (20150422.1) MachineType: Apple Inc. MacBookAir5,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-27-generic.efi.signed root=UUID=9a4f85f8-6215-4430-8874-d6c52eeea39c ro quiet splash crashkernel=384M-:128M vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.2.0-27-generic N/A linux-backports-modules-4.2.0-27-generic N/A linux-firmware 1.149.3 SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: Upgraded to wily on 2015-10-22 (118 days ago) dmi.bios.date: 06/08/2015 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBA51.88Z.00EF.B03.1506081623 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-66F35F19FE2A0D05 dmi.board.vendor: Apple Inc. dmi.board.version: MacBookAir5,1 dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-66F35F19FE2A0D05 dmi.modalias: dmi:bvnAppleInc.:bvrMBA51.88Z.00EF.B03.1506081623:bd06/08/2015:svnAppleInc.:pnMacBookAir5,1:pvr1.0:rvnAppleInc.:rnMac-66F35F19FE2A0D05:rvrMacBookAir5,1:cvnAppleInc.:ct10:cvrMac-66F35F19FE2A0D05: dmi.product.name: MacBookAir5,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug wily ** Attachment added: "lspci-vnvn.log" https://bugs.launchpad.net/bugs/1546975/+attachment/4574302/+files/lspci-vnvn.log -- 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/1546975 Title: Suspend failure/crash on Macbook Air 5,2 Status in linux package in Ubuntu: New Bug description: Until a few weeks ago suspend worked perfectly on my 2012 11" MacBook Air. Since that time however it has become very unreliable. If I close the lid to suspend and reopen within a short period of time it resumes and all is fine. If left longer eg overnight then on opening the lid the system is off and on power on cold boots. last will show this as a crash. cat /proc/version_signature Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1 ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-27-generic 4.2.0-27.32 ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1 Uname: Linux 4.2.0-27-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: moon127 2454 F.... pulseaudio /dev/snd/controlC1: moon127 2454 F.... pulseaudio /dev/snd/controlC0: moon127 2454 F.... pulseaudio CurrentDesktop: MATE Date: Thu Feb 18 11:05:32 2016 InstallationDate: Installed on 2015-07-29 (203 days ago) InstallationMedia: Ubuntu-MATE 15.04 "Vivid Vervet" - Release amd64 (20150422.1) MachineType: Apple Inc. MacBookAir5,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-27-generic.efi.signed root=UUID=9a4f85f8-6215-4430-8874-d6c52eeea39c ro quiet splash crashkernel=384M-:128M vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.2.0-27-generic N/A linux-backports-modules-4.2.0-27-generic N/A linux-firmware 1.149.3 SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: Upgraded to wily on 2015-10-22 (118 days ago) dmi.bios.date: 06/08/2015 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBA51.88Z.00EF.B03.1506081623 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-66F35F19FE2A0D05 dmi.board.vendor: Apple Inc. dmi.board.version: MacBookAir5,1 dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-66F35F19FE2A0D05 dmi.modalias: dmi:bvnAppleInc.:bvrMBA51.88Z.00EF.B03.1506081623:bd06/08/2015:svnAppleInc.:pnMacBookAir5,1:pvr1.0:rvnAppleInc.:rnMac-66F35F19FE2A0D05:rvrMacBookAir5,1:cvnAppleInc.:ct10:cvrMac-66F35F19FE2A0D05: dmi.product.name: MacBookAir5,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. 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