New device name enumerated after suspend/resume cycle
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
On Thinkpad T61, the touchpad and trackpoint are enumerated using the i8042 driver to be serio devices. In 2.6.32 series kernel from Lucid, the trackpoint was always enumerated as serio2 after a resume and its sysfs entry remained under /sys/devices/
With Maverick 2.6.35 kernel, after a resume a new device entry is created and older lost. So from serio1/serio2, it changes to serio1/serio3 after a resume, then to serio1/serio4 and so on. I set parameters using sysfs.conf for trackpoint sensitivity/speed and those are lost since a new device entry is created.
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-
Regression: Yes
Reproducible: Yes
ProcVersionSign
Uname: Linux 2.6.35-
NonfreeKernelMo
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfe220000 irq 49'
Mixer name : 'Analog Devices AD1984'
Components : 'HDA:11d41984,
Controls : 32
Simple ctrls : 20
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'
Mixer name : 'ThinkPad EC 7KHT24WW-1.08'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
CheckboxSubmission: 1ac9995abbd9123
CheckboxSystem: 0ede5de78dbf0a7
Date: Wed Oct 13 00:05:07 2010
HibernationDevice: RESUME=
MachineType: LENOVO 64607EU
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdLine: root=UUID=
ProcEnviron:
LANG=en_US.utf8
SHELL=/bin/bash
RelatedPackageV
SourcePackage: linux
WpaSupplicantLog:
dmi.bios.date: 05/11/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7LETC6WW (2.26 )
dmi.board.name: 64607EU
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 64607EU
dmi.product.
dmi.sys.vendor: LENOVO
tags: | added: acpi-bad-address |
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
same here on Thinkpad T400:
$ ls /sys/devices/ platform/ i8042/serio1/ platform/ i8042/serio1/
bind_mode driver/ id/ modalias protocol resetafter resync_time subsystem/
description drvctl input/ power/ rate resolution serio3/ uevent
$ ls /sys/devices/
bind_mode driver/ id/ modalias protocol resetafter resync_time subsystem/
description drvctl input/ power/ rate resolution serio4/ uevent
so all settings made with gnome-pointing- devices etc. are gone after standbye :(