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** Changed in: linux (Ubuntu)
Status: New => Confirmed
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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:
Confirmed
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.
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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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