Attached output of lsusb and lsusb -t with mouse plugged into the port where it was during problematic boot. (the mouse is the one with the blank description) if you need any other information, let me know.
** Attachment added: "lsusb output" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/978891/+attachment/3746984/+files/lsusb.txt -- 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/978891 Title: ubuntu 12.04 doesn't boot when usb device plugged in (except usb mouse) Status in “linux” package in Ubuntu: Triaged Bug description: On DELL Vostro 3750 with Ubuntu 12.04 beta 64bit, boot stops with black screen is in one of USB ports is plugged USB device that is not USB mouse. I have tried USB HDD and laptop cooler USB and in both cases Ubuntu does not boot. It gets till grub and after that it loads for few seconds and then stops not even showing logo screen. --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 0/1 Subdevice #0: subdevice #0 ApportVersion: 2.0.1-0ubuntu2 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: djbacon 1993 F.... pulseaudio /dev/snd/pcmC0D0p: djbacon 1993 F...m pulseaudio Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xf2b00000 irq 54' Mixer name : 'Realtek ALC269VB' Components : 'HDA:10ec0269,102804c6,00100100' Controls : 19 Simple ctrls : 11 DistroRelease: Ubuntu 12.04 HibernationDevice: RESUME=UUID=099b65c3-d636-4ada-9e1b-0e9984c79454 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MachineType: Dell Inc. Dell System Vostro 3750 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=eb98f17b-648a-4a2e-85cb-462736e19441 ro quiet splash pcie_aspm=force vt.handoff=7 ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14 RelatedPackageVersions: linux-restricted-modules-3.2.0-23-generic N/A linux-backports-modules-3.2.0-23-generic N/A linux-firmware 1.78 SourcePackage: linux StagingDrivers: mei zram Tags: precise staging precise staging Uname: Linux 3.2.0-23-generic x86_64 UpgradeStatus: Upgraded to precise on 2012-04-06 (6 days ago) UserGroups: adm admin lpadmin sambashare vboxusers dmi.bios.date: 05/19/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A05 dmi.board.name: 0VP036 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA05:bd05/19/2011:svnDellInc.:pnDellSystemVostro3750:pvr:rvnDellInc.:rn0VP036:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System Vostro 3750 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/978891/+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
