Touchpad enable/disable hotkey broken in 2.6.35-27
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Maverick |
Fix Released
|
High
|
Manoj Iyer | ||
Natty |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
Upgrading from 2.6.35-25.44 to 2.6.35-27.47 breaks the enable/disable Touchpad hotkey (Fn-F8) on a ThinkPad T510. Under the -25 kernel, the hotkey works as expected to toggle the touchpad on + off. Under the -27 kernel the touchpad does not get toggled on/off.
Using acpi_listen I see that Fn-F8 does send the following event in both the -25 and -27 kernel:
ibm/hotkey HKEY 00000080 00001008
I am using the -pae kernel.
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-
Regression: Yes
Reproducible: Yes
ProcVersionSign
Uname: Linux 2.6.35-
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: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
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 0xf2420000 irq 48'
Mixer name : 'Conexant CX20585'
Components : 'HDA:14f15069,
Controls : 6
Simple ctrls : 4
Card1.Amixer.info:
Card hw:1 'NVidia'/'HDA NVidia at 0xcdefc000 irq 16'
Mixer name : 'Nvidia GPU 0b HDMI/DP'
Components : 'HDA:10de000b,
Controls : 16
Simple ctrls : 4
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'
Mixer name : 'ThinkPad EC 6MHT43WW-1.18'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Date: Mon Feb 21 13:26:51 2011
HibernationDevice: RESUME=
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: LENOVO 434926U
ProcCmdLine: BOOT_IMAGE=
ProcEnviron:
LANG=en_US.utf8
SHELL=/bin/bash
RelatedPackageV
SourcePackage: linux
dmi.bios.date: 10/26/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6MET81WW (1.41 )
dmi.board.name: 434926U
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: 434926U
dmi.product.
dmi.sys.vendor: LENOVO
Changed in linux (Ubuntu): | |
status: | New → Triaged |
Changed in linux (Ubuntu): | |
assignee: | nobody → Manoj Iyer (manjo) |
importance: | Undecided → Critical |
tags: | added: hwe-blocker |
Changed in linux (Ubuntu Natty): | |
assignee: | Manoj Iyer (manjo) → nobody |
status: | Triaged → Fix Released |
Changed in linux (Ubuntu Maverick): | |
assignee: | nobody → Manoj Iyer (manjo) |
importance: | Undecided → High |
status: | New → In Progress |
Changed in linux (Ubuntu Natty): | |
importance: | Critical → Undecided |
tags: | added: verification-done-maverick |
Please test the kernel in
http:// kernel. ubuntu. com/~manjo/ maverick/ lp722747/
I tested this on a T410 and the FN+F8 disables and enables the touchpad.