I believe I've a partial answer from here "As a Long Term Support release, Ubuntu 14.04.2 includes an updated hardware enablement stack that includes the 3.16 Linux kernel and an updated version of the Xorg display server. [...] The new hardware enablement stack will be installed by default if you install from 14.04.2 installation media, but if you’re humming along nicely with the current versions of Xorg and the Linux kernel on 14.04 and 14.04.1, fear not – the new stack is not installed by default and is completely opt- in."
from here: http://www.omgubuntu.co.uk/2015/02/ubuntu-14-04-2-lts-released-includes-3-16-kernel details of the stuf: http://askubuntu.com/questions/506956/how-can-i-install-3-16-kernel-on-ubuntu-14-04 So I believe to understand that if we want to correct the proper way LTS 14.04.2 release installed prior a fresh 14.04.2 installation media, future 3.13.x release update of LTS 14.04.2 needs to include the correction to avoid to force people to install HWE. What you are trying to track Christopher. Right? So my situation is to not update kernel over 3.13.0-44 for X200 laptops where LST 14.04.X is already installed. for those laptop I would need to wait, eventually, LTS 14.04.3 around august. on new X200 laptops laptops the LTS 14.04.2 include 3.16 by default. (what strange is that some how, update of linux-generic-lts-utopic was already held back) And for laptop updated to 3.13.0-45, or i need to install HWE from linux-generic-lts-utopic and co, or I need to wait for 3.13.0-x providing some roll-back or some code correction. So I understand, that next steps are really to do your advice from https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1416849/comments/17 But I guess 3.16 is needed and not 3.19. right? Thanks. -- 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/1446504 Title: Asus X200MA Black Screen after LTS Update (3.13.0-49-generic) Status in linux package in Ubuntu: Incomplete Bug description: related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1427646 Description: Ubuntu 14.04.2 LTS Release: 14.04 cat /proc/version_signature := Ubuntu 3.13.0-49.83-generic 3.13.11-ckt17 Linux Lux1-Ops-LiloXX 3.13.0-49-generic #83-Ubuntu SMP Fri Apr 10 20:11:33 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-49-generic 3.13.0-49.83 ProcVersionSignature: Ubuntu 3.13.0-49.83-generic 3.13.11-ckt17 Uname: Linux 3.13.0-49-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.10 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Apr 21 09:45:44 2015 HibernationDevice: RESUME=UUID=8cfe631b-97f1-4da1-b1b2-15675c32779e InstallationDate: Installed on 2015-01-19 (91 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB Bus 001 Device 003: ID 04f2:b483 Chicony Electronics Co., Ltd Bus 001 Device 002: ID 734c:5220 TBS Technologies China Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: ASUSTeK COMPUTER INC. X200MA ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-49-generic.efi.signed root=UUID=44c3a9ad-88df-4e7e-833f-257b8e54822d ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.13.0-49-generic N/A linux-backports-modules-3.13.0-49-generic N/A linux-firmware 1.127.11 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/11/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: X200MA.502 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: X200MA dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX200MA.502:bd09/11/2014:svnASUSTeKCOMPUTERINC.:pnX200MA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX200MA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: X200MA dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1446504/+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
