richard jones, thank you for reporting this and helping make Ubuntu better. As per http://us.acer.com/ac/en/US/content/drivers an update to your computer's buggy and outdated BIOS is available (3813). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?
If it doesn't, could you please both specify what happened, and provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report. Once the BIOS is updated, and the information above is provided, then please mark this report Status Confirmed. Thank you for your understanding. ** Tags added: bios-outdated-3813 ** Changed in: linux (Ubuntu) Importance: Undecided => Low ** Changed in: linux (Ubuntu) Status: New => Incomplete -- 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/1453542 Title: 15.04 with 3.19.0-17 kernel boot failure Status in linux package in Ubuntu: Incomplete Bug description: An Acer Aspire 5920 with Ubuntu 15.04 kernel 3.19.0-17-generic fails boot up going unresponsive very early in the sequence. I installed the upstream kernel packages on my Acer Aspire 5920 laptop: linux-headers-4.1.0-040100rc2-generic_4.1.0-040100rc2.201505032335_amd64.deb linux-image-4.1.0-040100rc2-generic_4.1.0-040100rc2.201505032335_amd64.deb The machine booted successfully 3 times with warnings about installed packages having unmet dependencies. uname -r command confirmed that the expected kernel was running: 4.1.0-040100rc2-generic ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: richard 1880 F.... pulseaudio CurrentDesktop: Unity Date: Mon May 11 00:49:15 2015 HibernationDevice: RESUME=UUID=f08d2e82-db26-49b2-b688-4df3cc5f0762 InstallationDate: Installed on 2015-01-08 (122 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: Acer, inc. Aspire 5920 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=bf544740-121f-4cd5-90fe-07cbe21fd0a2 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-24 (16 days ago) dmi.bios.date: 03/14/2008 dmi.bios.vendor: Acer dmi.bios.version: v1.3811 dmi.board.name: Chapala dmi.board.vendor: Acer, Inc. dmi.board.version: Not Applicable dmi.chassis.type: 1 dmi.chassis.vendor: Acer, Inc. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAcer:bvrv1.3811:bd03/14/2008:svnAcer,inc.:pnAspire5920:pvrNotApplicable:rvnAcer,Inc.:rnChapala:rvrNotApplicable:cvnAcer,Inc.:ct1:cvrN/A: dmi.product.name: Aspire 5920 dmi.product.version: Not Applicable dmi.sys.vendor: Acer, inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1453542/+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
