Until now, the machine has stabilized its behaviour and no longer freezes after the workaround applied.
Sadly, the suspend and shutdown functions remain in trouble, since when the laptop lid is closed it remains turned on and unresponsive; and when the equipment is instructed to shutdown, it keeps in an infinite loop trying to power down without success. In both cases, a hard shut down (a.k.a. keep pressing power button until turned off) is needed. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- 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/1593226 Title: [Acer Aspire ES1-411] Ubuntu freezes occasionally Status in linux package in Ubuntu: Confirmed Bug description: I am running Ubuntu 16.04 and my notebook freezes occasionally. I am running Ubuntu on an Acer Aspire ES1-411 (P6B1). There's also an identical Bug filled with Acer Aspire ES1-311 and both Ubuntu 15.04 & 15.10 by Christian Wansart here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1509723 I have no clue what causes this, my system just freezes and I can't do anything anymore. When it happens, I have tried the following secuence without any luck, I have to power down manually: 1. ALT + F2, type xkill + ENTER. 2. Press Alt+Ctrl+F1. 3. While holding Alt and the SysReq (Print Screen) keys, type REISUB. Last time I was only viewing a Youtube video using Firefox. I checked some log files but I couldn't find anything suspicious. Any ideas? ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-24-generic 4.4.0-24.43 ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10 Uname: Linux 4.4.0-24-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: dnaranjor 1503 F.... pulseaudio CurrentDesktop: Unity Date: Thu Jun 16 09:00:34 2016 HibernationDevice: RESUME=UUID=5023d49a-acd1-475f-8593-d3da289e4859 InstallationDate: Installed on 2016-06-02 (13 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: Acer Aspire ES1-411 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-24-generic root=UUID=e6ddc4d0-aaa8-4e28-9d68-6b37358246b6 ro quiet splash reboot=pci vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-24-generic N/A linux-backports-modules-4.4.0-24-generic N/A linux-firmware 1.157 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/10/2014 dmi.bios.vendor: Insyde Corp. dmi.bios.version: V1.08 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: EA42_BM dmi.board.vendor: Acer dmi.board.version: Type2 - A01 Board Version dmi.chassis.type: 10 dmi.chassis.vendor: Chassis Manufacturer dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.08:bd12/10/2014:svnAcer:pnAspireES1-411:pvrV1.08:rvnAcer:rnEA42_BM:rvrType2-A01BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion: dmi.product.name: Aspire ES1-411 dmi.product.version: V1.08 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1593226/+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