It looks like this has been fixed upstream. I will close it. If the
problem still occurs, please reopen it.
** Changed in: linux (Ubuntu)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1117608
Title:
413c:8140 [Dell Latitude D630] Bluetooth incorrectly removes input
devices
Status in linux package in Ubuntu:
Invalid
Bug description:
Linux kernels after 3.2 introduced battery status reporting for
devices such as bluetooth keyboards and mouse.
Unfortunately there is an issue when such input devices are removed:
- a battery status report is requested
- this fails, because the device is being removed (communications with it are
now down)
- the failure results in a 5 second wait (the code has a 5 second timeout)
- the bluetooth hci code has a race condition: the 5 second delay means one
thread definitely loses the race
- the race condition leads to devices in the sysfs tree being removed in the
wrong order
- this leads to udev events being sent out with 'truncated paths'
- this leads to userspace programs like Xorg evdev ignoring the event, but
then getting confused about what keyboard/mice are actually attached
- this results in bluetooth keyboard/mice not working after a suspend/resume
(because on resume the input devices are first removed, and then re-added)
---
ApportVersion: 2.6.1-0ubuntu9
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: karl 2108 F.... pulseaudio
DistroRelease: Ubuntu 12.10
HibernationDevice: RESUME=UUID=a82d4a59-432d-4d4b-9d27-557f669eb637
MachineType: Dell Inc. Latitude D630
MarkForUpload: True
Package: linux (not installed)
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_GB.UTF-8
SHELL=/usr/bin/tcsh
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-4-generic
root=UUID=84c73eda-43e4-429c-8428-0a37de7b6de5 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.8.0-4.8-generic 3.8.0-rc6
RelatedPackageVersions:
linux-restricted-modules-3.8.0-4-generic N/A
linux-backports-modules-3.8.0-4-generic N/A
linux-firmware 1.95
Tags: quantal running-unity
Uname: Linux 3.8.0-4-generic i686
UpgradeStatus: Upgraded to quantal on 2012-10-23 (107 days ago)
UserGroups: adm admin audio cdrom dialout dip fax floppy lpadmin netdev
plugdev powerdev scanner tape video
WpaSupplicantLog:
dmi.bios.date: 06/20/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A12
dmi.board.name: 0KU184
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA12:bd06/20/2008:svnDellInc.:pnLatitudeD630:pvr:rvnDellInc.:rn0KU184:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude D630
dmi.sys.vendor: Dell Inc.
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