Acer TM (TravelMate) B115M N2930 processor (manufactured on Jully-2014) Acer TM (TravelMate) B115M N2940 processor (manufactured on Jully-2015) Acer TM (TravelMate) B117M N3150 processor using SSD (manufactured on Jully-2016)
Lubuntu 14.04 LTS + LTSEnablementStack (https://wiki.ubuntu.com/Kernel/LTSEnablementStack) We have about 110 units of each model. Some of them are freezing. Tested 2 machines of each model during more than 72 hours. Playing Youtube videos with Chrome at full screen, playing with MineCraft (Java application), using the webcam with guvcview, running powertop, pinging our gateway, showing iwevent... Kernel version 4.4.0-36-generic 64bit Using c6off+c7on.sh (see comment #139) seems to solve the problem. However, N3150 is seen has CHT (Cherry Trail) processor, not BYT (Bay Trail) processor. So, for this case it's necessary to modify c6off+c7on.sh for cases C6*-CHT and C7*-CHT. cstateInfo.sh (see comment #139) shows all the state-names, if doubts about it. N2930, N2940 --> Bay Trail Processors (http://ark.intel.com/products/codename/55844/Bay-Trail?q=bay%20trail#@All) N3150 --> Braswell Processor (http://ark.intel.com/products/codename/66094/Braswell#@All) But kernel code sees as Cherry Trail Processor (???) (http://ark.intel.com/products/codename/46629/Cherry-Trail) Upgraded the machines to latest stable kernel (4.8.10). No script applied. It also seems to solve the problem. Solution found at https://forum.manjaro.org/t/intel-bay-trail-freezes-the-linux- kernel/1931/12 For B117M, Acer technical services changed the SSD unit. But the system continued freezing. At comment #126 one user solved his problem updating the SSD firmware. Our 2 tested B117M seem to be stable with 4.8.10 kernel. ** Attachment added: "kernel 4.8.10 generic 64 bit" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1575467/+attachment/4781556/+files/kernel_v4.8.10.sh -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/1575467 Title: [Dell Inspiron 3451] WARNING: CPU: 1 PID: 1297 at /build/linux-lts- utopic-vy2yyy/linux-lts- utopic-3.16.0/drivers/gpu/drm/i915/intel_display.c:1743 vlv_wait_port_ready+0x126/0x170 [i915]() Status in linux package in Ubuntu: Incomplete Status in linux source package in Xenial: Incomplete Bug description: After upgrading from stock Ubuntu 14.04 to 16.04 my laptop consistently freezes up and is unresponsive to keyboard or mouse. The only way is to do a hard shutdown. I'm usually in a browser when this happens, and often watching a video or two. It seems to happen more often in Google Chrome than Firefox, but it happens with both. It has happened at least once with no videos loaded. I haven’t observed it freeze / hang when I’m not in a browser, but that's mainly what i use my laptop for, so that's where most of my time is spent. Call trace: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1575467/+attachment/4648682/+files/kern.log.2.gz --- ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: andrew 1949 F.... pulseaudio DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=e8aaee7c-d956-4519-94f0-cf7aad745020 InstallationDate: Installed on 2015-08-08 (263 days ago) InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) MachineType: Dell Inc. Inspiron 3451 Package: linux (not installed) ProcEnviron: LANGUAGE=en_US TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic.efi.signed root=UUID=d01f07be-c906-4024-8eef-a58ba3935298 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.4.0-21-generic N/A linux-backports-modules-4.4.0-21-generic N/A linux-firmware 1.157 Tags: xenial Uname: Linux 4.4.0-21-generic x86_64 UpgradeStatus: Upgraded to xenial on 2016-04-22 (4 days ago) UserGroups: _MarkForUpload: True dmi.bios.date: 12/05/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: A00 dmi.board.name: 0H4MK6 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnDellInc.:bvrA00:bd12/05/2014:svnDellInc.:pnInspiron3451:pvrA00:rvnDellInc.:rn0H4MK6:rvrA00:cvnDellInc.:ct8:cvrNotSpecified: dmi.product.name: Inspiron 3451 dmi.product.version: A00 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1575467/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
