kernel-packages team mailing list archive

[Keith McClelland <1436620@xxxxxxxxxxxxxxxxxx>]

Christopher, this assignment doesn't seem possible. When I use Linux
4.0.0-040000rc7-genericx86_64, it suspends well and seems to stay
suspended indefinitely. But I can't get it to resume at all and have to
kill it by holding the power switch for a long time.

When it comes back it reports two or three errors, though I'm not sure
they are different. It's a proglem type KernelOops, suspend/resume
failure with apport version 2.14.7-0ubuntu8.2.

The hole suspend thing is highly erratic. Sometimes, using my modified
4.0-rc7 kernel, I actually get both lid open and lid close events. When
that happens, I can set it to suspend on lid closed and it actually
works pretty well except for not going through a logon on the way back.
Maybe suspending by another means wrecks its ability to recognize lid
opening but this is getting into speculation.

I and some other people are trying to keep a coherent discussion of all
surface problems going on https://groups.google.com/forum/#!forum/linux-
surface . I will keep trying to understand things there.]

Maybe this bug should be closed for being irreproducible.

Keith

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https://bugs.launchpad.net/bugs/1436620

Title:
  Bluetooth & USB interrupt suspended state on Surface Pro 3

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  [Please note: this information was collected using 3.16.0-33 but
  actually is talking about behavior under 4.0.0-RC4 with four specific
  patches described at the end of the note.]

  1. When suspending (i.e. freezing in this situation), it is never
  certain that it will stay suspended. About half the time it simply
  bounces back in the same way that suspending without the freeze patch
  does.

  2. If Bluetooth is on or if a Gigaware USB hub is connected to a USB
  port, the freeze never seems to last very long. It doesn't always
  bounce right back but it usually comes back within a few minutes. (I
  have the latest version of mwifiex firmware.) Not all USB devices
  cause this problem; e.g. I have a Microsoft wireless keyboard and
  mouse with a tiny USB transceiver that does not affect suspension.

  ----

  The patches are:

  - (not involved) The addition of the two Microsoft cameras in the
  kernel,  drivers/media/usb/uvc/uvc_driver.c.

  - (not involved) The acpi battery-detecting patch described in kernel
  bugzilla bug 90161.

  - Modification of /usr/lib/pm-utils/pm-functions as described in
  Launchpad bug 1380076 to use the "freeze" methodology for suspending.
  Without this modification all attempts at suspending bounce back
  immediately; thus the behavior described in this bug cannot be
  observed.

  - The "surface_buttons.c" patch described in kernel bugzilla bug
  84651; without this it is nearly impossible to get out of a freeze
  once you've gotten into it.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-33-generic 3.16.0-33.44
  ProcVersionSignature: Ubuntu 3.16.0-33.44-generic 3.16.7-ckt7
  Uname: Linux 3.16.0-33-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  keith      2741 F.... pulseaudio
   /dev/snd/controlC0:  keith      2741 F.... pulseaudio
   /dev/snd/controlC1:  keith      2741 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Mar 25 20:17:17 2015
  HibernationDevice: RESUME=UUID=a84237b2-3192-4b08-a535-d5561688b546
  InstallationDate: Installed on 2015-01-05 (79 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Microsoft Corporation Surface Pro 3
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-33-generic.efi.signed root=UUID=07a2b8fb-d17a-4e67-a4d5-39ece3561dc4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-33-generic N/A
   linux-backports-modules-3.16.0-33-generic  N/A
   linux-firmware                             1.138.1
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/19/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 3.11.0450
  dmi.board.asset.tag: 0
  dmi.board.name: Surface Pro 3
  dmi.board.vendor: Microsoft Corporation
  dmi.board.version: 1
  dmi.chassis.asset.tag: 0
  dmi.chassis.type: 9
  dmi.chassis.vendor: Microsoft Corporation
  dmi.chassis.version: 1
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.11.0450:bd11/19/2014:svnMicrosoftCorporation:pnSurfacePro3:pvr1:rvnMicrosoftCorporation:rnSurfacePro3:rvr1:cvnMicrosoftCorporation:ct9:cvr1:
  dmi.product.name: Surface Pro 3
  dmi.product.version: 1
  dmi.sys.vendor: Microsoft Corporation

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