Following the instructions, I couldn't identify any mailing list to send the bug report, so I email it to the maintainer of the presumable affected module who suggested me to report it to the Kernel Bug Tracker:
https://bugzilla.kernel.org/show_bug.cgi?id=86031 ** Bug watch added: Linux Kernel Bug Tracker #86031 http://bugzilla.kernel.org/show_bug.cgi?id=86031 -- 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/1358921 Title: [Acer AO 751h] Laptop requires a hard reset to recover from suspend state Status in “linux” package in Ubuntu: Triaged Bug description: Description: Ubuntu 14.04.1 LTS Release: 14.04 Since update to Lubuntu 14.04.1 from lubuntu 13.10, the laptop is not able to resume from suspend anymore. I've checked this happens runing lubuntu 14.04.01 LiveCD too (but not with the LiveCD of previous version of Lubuntu). If I start the OS with the previous kernel 3.11.0-26 I have not the problem. But starting with kernel 3.13.0-32 or 3.13.0-34 it is there. If I suspend the laptop closing the lid, or from the menu, pressing the power button (to show the exit menu) or running sudo pm-suspend, the laptop get suspended, the screen will off, and the power button led blinks as expected. But then it is not possible to awake again neither pressing a key or pressing the power button. If in that state I try to power off keeping pressed the power button, that still does not work: the blink led still blinks and nothing happens. The only way to recover the system is removing the battery and turning on again. That I expect: After suspend the laptop, I am able to resume it again, just pressing a key, or pressing the power button. I've tried starting with "acpi_osi=linux" but didn't help. (anyway, that was not necessary with the previous kernel/OS version). ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-34-generic 3.13.0-34.60 ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4 Uname: Linux 3.13.0-34-generic i686 ApportVersion: 2.14.1-0ubuntu3.3 Architecture: i386 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No existe el archivo o el directorio: 'iw' CurrentDesktop: LXDE Date: Tue Aug 19 22:26:06 2014 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=25620b94-5943-42f1-8b93-c4922fd4ceb1 Lsusb: Bus 001 Device 002: ID 0c45:62c0 Microdia Sonix USB 2.0 Camera Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: Acer AO751h ProcFB: 0 psbdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-34-generic root=UUID=0e9dd9a1-128b-47a7-bd68-575ef7fb2073 ro quiet splash acpi_osi=linux vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-34-generic N/A linux-backports-modules-3.13.0-34-generic N/A linux-firmware 1.127.5 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/27/2009 dmi.bios.vendor: Acer dmi.bios.version: V0.3202 dmi.board.name: JV11-ML dmi.board.vendor: Acer dmi.board.version: Not Applicable dmi.chassis.type: 1 dmi.chassis.vendor: Acer dmi.chassis.version: N/A dmi.modalias: dmi:bvnAcer:bvrV0.3202:bd04/27/2009:svnAcer:pnAO751h:pvrNotApplicable:rvnAcer:rnJV11-ML:rvrNotApplicable:cvnAcer:ct1:cvrN/A: dmi.product.name: AO751h dmi.product.version: Not Applicable dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1358921/+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
