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[bhaskar <1315027@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

At random (I estimate perhaps 20-25% of the time), when I suspend my
Kubuntu 14.04 (upgraded from 13.10, not a fresh install) laptop, it
blanks the screen, and displays a message such as that below on the text
console.  Then, instead of going to sleep, it remains powered up.  In
this state, nothing works to get back control, not Ctrl-Alt-Del, Ctrl-
Alt-Backspace, Ctrl-Alt-F2 (or other function key), not ^C.  The only
way I have found to get control is to hold the power button down, which
is a power-down and then power-up.

Message on console is:

[40066.396632] PM: Syncing filesystems ... done
[40066.767832] PM: Preparing system for mem sleep
[40066.768398] i2400m_usb 2-1.5:1.0: firmware i6050-fw-usb-1.5.sbcf: Cached
[40066.768473] Freezing user space processes ... (elapsed 0.002 seconds) done.
[40066.772353] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[40066.772353] PM: Entering mem sleep
[40044.772472] Suspending console(s) (use no_console_suspend to debug)

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  kbhaskar   3264 F.... pulseaudio
 /dev/snd/controlC0:  kbhaskar   3264 F.... pulseaudio
CurrentDesktop: KDE
Date: Thu May  1 10:30:12 2014
InstallationDate: Installed on 2012-02-12 (809 days ago)
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: Dell Inc. Precision M6600
ProcFB:
 
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=3dff6dbf-9812-40dd-832f-33959e2a0e1a ro quiet splash transparent_hugepage=always hugepages=120
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-24-generic N/A
 linux-backports-modules-3.13.0-24-generic  N/A
 linux-firmware                             1.127
SourcePackage: linux
StagingDrivers: zram
UpgradeStatus: Upgraded to trusty on 2014-04-02 (28 days ago)
dmi.bios.date: 05/13/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A10
dmi.board.name: 04YY4M
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA10:bd05/13/2012:svnDellInc.:pnPrecisionM6600:pvr01:rvnDellInc.:rn04YY4M:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Precision M6600
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug staging trusty

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https://bugs.launchpad.net/bugs/1315027

Title:
  Suspend puts laptop in state requiring hard power down + power up

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  At random (I estimate perhaps 20-25% of the time), when I suspend my
  Kubuntu 14.04 (upgraded from 13.10, not a fresh install) laptop, it
  blanks the screen, and displays a message such as that below on the
  text console.  Then, instead of going to sleep, it remains powered up.
  In this state, nothing works to get back control, not Ctrl-Alt-Del,
  Ctrl-Alt-Backspace, Ctrl-Alt-F2 (or other function key), not ^C.  The
  only way I have found to get control is to hold the power button down,
  which is a power-down and then power-up.

  Message on console is:

  [40066.396632] PM: Syncing filesystems ... done
  [40066.767832] PM: Preparing system for mem sleep
  [40066.768398] i2400m_usb 2-1.5:1.0: firmware i6050-fw-usb-1.5.sbcf: Cached
  [40066.768473] Freezing user space processes ... (elapsed 0.002 seconds) done.
  [40066.772353] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
  [40066.772353] PM: Entering mem sleep
  [40044.772472] Suspending console(s) (use no_console_suspend to debug)

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-24-generic 3.13.0-24.46
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  kbhaskar   3264 F.... pulseaudio
   /dev/snd/controlC0:  kbhaskar   3264 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Thu May  1 10:30:12 2014
  InstallationDate: Installed on 2012-02-12 (809 days ago)
  InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  MachineType: Dell Inc. Precision M6600
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=3dff6dbf-9812-40dd-832f-33959e2a0e1a ro quiet splash transparent_hugepage=always hugepages=120
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127
  SourcePackage: linux
  StagingDrivers: zram
  UpgradeStatus: Upgraded to trusty on 2014-04-02 (28 days ago)
  dmi.bios.date: 05/13/2012
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A10
  dmi.board.name: 04YY4M
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA10:bd05/13/2012:svnDellInc.:pnPrecisionM6600:pvr01:rvnDellInc.:rn04YY4M:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Precision M6600
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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