kernel-packages team mailing list archive

[Simon Repp <simon@fdpl.foundation>]

Hi,

I freshly installed 15.04 about a week ago (my kernel is
19.0-22-generic) and am experiencing similiar behaviour, with some
additional symptoms to those described already:

- When the problem occurs for me, startup time spent on the loading screen ("colored dots") goes up from less than a second to about 1+ minute
- When the login screen is finally reached, I am not able to do anything (except cut power and hope it does not occur on the next boot) because un- and re-plugging any usb devices does nothing at all (my keyboard gets power, but is not recognized, same for mouse)

If I can provide any additional info to help with this, please let me
know. Just like jhe, I didn't yet see any logic regarding how this
problem is triggered so far.

-- 
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/1435028

Title:
  Kernel does not detect already connected USB devices on boot

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  The kernel does not always detect already connected USB devices on
  boot. I have an USB nic and an external mouse connected to my Laptop.
  Sometimes these devices are recognized after boot, sometimes they are
  missing.

  When they are not present after boot you have to unplug them and plug them again. This is inconvient and adds physical wear on the USB connectors.
  The kernel log shows no sign of a disconnect, so it seems the kernel does not recognize the devices as plugged in on boot.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-9-generic 3.19.0-9.9
  ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1
  Uname: Linux 3.19.0-9-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.16.2-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC1D0p:   jan        1733 F...m pulseaudio
   /dev/snd/controlC1:  jan        1733 F.... pulseaudio
   /dev/snd/controlC0:  jan        1733 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Sun Mar 22 17:07:16 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-01-30 (50 days ago)
  InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Dell Inc. XPS 13 9343
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-9-generic.efi.signed root=UUID=e4431ecc-e85e-4e35-92af-58f455c46c2b ro kvm-intel.nested=1 quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-9-generic N/A
   linux-backports-modules-3.19.0-9-generic  N/A
   linux-firmware                            1.143
  SourcePackage: linux
  UpgradeStatus: Upgraded to vivid on 2015-03-19 (3 days ago)
  dmi.bios.date: 03/12/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A02
  dmi.board.name: 0310JH
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA02:bd03/12/2015:svnDellInc.:pnXPS139343:pvr01:rvnDellInc.:rn0310JH:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9343
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1435028/+subscriptions