I don't know if this is the same issue or not. I have a Dell Optiplex 745 that will hang while booting (blank screen). It will however boot fine if I select the 'advanced option for Ubuntu' from the boot loader and boot into 'recovery mode.' Once booted into 'recovery mode', selecting the 'resume normal boot' works just fine. I have this same issue with the 3 different Dell Optiplex computers so this is not hardware on just one computer.
The previous version of Ubuntu (13.10) worked fine with the same hardware. It was only after the system update to 14.04 that this began to happen. Ubuntu 14.04 with Linux 3.13.0-36-generic -- 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/1329384 Title: [Dell PowerEdge R220] 12.04/14.04 Ubuntu Server 32 bit installer does not boot without acpi=off Status in “linux” package in Ubuntu: Incomplete Bug description: Trying to install Ubuntu Server on a brand new Dell R220 (released 2 months ago). Tested multiple installers all from USB: - Ubuntu Server 12.04.4 LTS (i686) without any option: kernel panic - Ubuntu Server 14.04.4 LTS (i686) without any option: kernel panic - Ubuntu Server 12.04.4 LTS (amd64) without any option: works as expected (GOOD) The files attached are for a 12.04.4 (latest available as 6/6/14) installation. Kernel panic happened into acpi_ex_system_memory_space_handler. Tried some options: - acpi=ht: kernel panic - pci=noacpi: kernel panic WORKAROUND: Utilize kernel boot parameter: acpi=off --- AcpiTables: AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.11.0-23-generic. ApportVersion: 2.0.1-0ubuntu17.6 Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: VX222e0 [Digigram VX222e [PCM #0]], device 0: pcxhr 0 [pcxhr 0] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'VX222e0'/'Digigram VX222e at 0xa2b00000 & 0x3000, 0x3100 irq 16 [PCM #0]' Mixer name : '' Components : '' Controls : 21 Simple ctrls : 9 DistroRelease: Ubuntu 12.04 HibernationDevice: RESUME=UUID=9d0e0f11-a9a8-4c8a-b400-87ee5920a8af InstallationMedia: Ubuntu-Server 12.04.4 LTS "Precise Pangolin" - Release i386 (20140606) MarkForUpload: True Package: linux (not installed) ProcEnviron: LANGUAGE=en_US: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-23-generic root=UUID=1858ce80-926f-480a-b4be-99adca525779 ro quiet acpi=off ProcVersionSignature: Ubuntu 3.11.0-23.40~precise1-generic 3.11.10.10 RelatedPackageVersions: linux-restricted-modules-3.11.0-23-generic N/A linux-backports-modules-3.11.0-23-generic N/A linux-firmware 1.79.14 RfKill: Error: [Errno 2] No such file or directory Tags: precise Uname: Linux 3.11.0-23-generic i686 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: dmi.bios.date: 04/02/2014 dmi.bios.version: 1.0.3 dmi.board.version: A00 dmi.chassis.type: 23 dmi.chassis.version: 01 dmi.modalias: dmi:bvn:bvr1.0.3:bd04/02/2014:svn:pn:pvr01:rvn:rn:rvrA00:cvn:ct23:cvr01: dmi.product.version: 01 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1329384/+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