I cannot go to upgrade to that daily image because this is the company's laptop and I have work to do.
What I can tell more than that is that yesterday after lunch I installed the kernel 4.4.5-040405-generic (from http://kernel.ubuntu.com/~kernel- ppa/mainline/v4.4.5-wily/) and that it did not freeze since. In addition, with this kernel I have no problems using the apt to update software (as I was having with 4.5.0-040500rc7), but I could not install the proprietary wireless driver bcmwl-kernel-source for my wireless card (Broadcom Corporation BCM4352 802.11ac Wireless Network Adapter) because "kernel package linux-headers-4.4.5-040405-generic is not supported". I may go and try an older kernel (but still something above 4.2, like 4.3) hoping that it will not freeze my laptop and that it will work with the bcmwl-kernel-source package. At this point I will move again the bug in status Confirmed, because I cannot give you more info (I cannot go and install the daily image of 16.04). ** 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/1552333 Title: After upgrade to 4.2 kernel Ubuntu 14.04 LTS randomly freezes completely Status in linux package in Ubuntu: Confirmed Bug description: I am not sure whether this is related to Xorg because of following: Today it happened a few times this complete freeze. Before today never happened. Today I did a normal system update in the morning, then a ditro upgrade which just upgraded a few unimportant packages, then the first freeze happened. Later I upgraded the kernel from 3.19.0 to 4.2.0 and after that a few more freezes happened. I attached the apt log generated today and including the last update yesterday: apt_log_for_day_with_upgrade_to_kernel4.2.log. Each time this happened, before freeze I saw in the log something like: 9492 Mar 2 14:00:08 my-ubunty kernel: [ 2514.659171] [drm] HPD interrupt storm detected on connector HDMI-A-1: switching from hotplug detection to polling And once or twice I saw right after that something like: 9493 Mar 2 14:01:13 my-ubuntu compiz: pam_ecryptfs: seteuid error Then some binary content I also use disk encryption (the one from Ubuntu). Each time the freezing happened, the mouse and keyboard weer dead and the screen was frozen in whatever content was displaying at that point. So the only think I could do is to press the power button for 5 seconds. I upgraded from 3.19 kernel (linux-generic-lts-vivid) as follows: $ sudo apt-get update $ sudo apt-get install linux-generic-lts-wily Thank you. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xorg 1:7.7+1ubuntu8.1 ProcVersionSignature: Ubuntu 4.2.0-30.36~14.04.1-generic 4.2.8-ckt3 Uname: Linux 4.2.0-30-generic x86_64 NonfreeKernelModules: wl .tmp.unity.support.test.0: ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Wed Mar 2 16:35:13 2016 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu DkmsStatus: bcmwl, 6.30.223.248+bdcom, 3.19.0-51-generic, x86_64: installed bcmwl, 6.30.223.248+bdcom, 4.2.0-30-generic, x86_64: installed EcryptfsInUse: Yes GpuHangFrequency: Several times a day GpuHangReproducibility: Seems to happen randomly GpuHangStarted: Today GraphicsCard: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:05fe] Subsystem: Dell Device [1028:05fe] InstallationDate: Installed on 2015-09-28 (156 days ago) InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) MachineType: Dell Inc. XPS 15 9530 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-30-generic root=/dev/mapper/ubuntu--vg-root ro cgroup_enable=memory swapaccount=1 quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/15/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: A07 dmi.board.name: XPS 15 9530 dmi.board.vendor: Dell Inc. dmi.board.version: A07 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnDellInc.:bvrA07:bd10/15/2014:svnDellInc.:pnXPS159530:pvrA07:rvnDellInc.:rnXPS159530:rvrA07:cvnDellInc.:ct8:cvrNotSpecified: dmi.product.name: XPS 15 9530 dmi.product.version: A07 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.11.3+14.04.20150313-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.64-1~ubuntu14.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri N/A version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core N/A version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A xserver.bootTime: Wed Mar 2 16:15:49 2016 xserver.configfile: default xserver.errors: Failed to load module "nvidia" (module does not exist, 0) Failed to load module "nvidia" (module does not exist, 0) NOUVEAU(G0): Failed to initialise context object: 2D_NVC0 (0) NOUVEAU(G0): Error initialising acceleration. Falling back to NoAccel xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.17.1-0ubuntu3.1~trusty1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552333/+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
