Touchpad enable/disable hotkey broken in 2.6.35-27
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| | linux (Ubuntu) |
Undecided
|
Unassigned | ||
| | Maverick |
High
|
Manoj Iyer | ||
| | Natty |
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
| Steve Magoun (smagoun) wrote : | #1 |
| Changed in linux (Ubuntu): | |
| status: | New → Triaged |
| Changed in linux (Ubuntu): | |
| assignee: | nobody → Manoj Iyer (manjo) |
| importance: | Undecided → Critical |
| tags: | added: hwe-blocker |
| Manoj Iyer (manjo) wrote : | #2 |
| Steve Magoun (smagoun) wrote : | #3 |
The kernel in comment #2 fixes Fn+F8 fucntionality for me on a T510
| Manoj Iyer (manjo) wrote : | #4 |
SRU JUSTIFICATION
=================
EFFECT
=======
Recent patches to thinkpad_acpi.c that was intended to add support for model-specific keymaps, and support KEY_CAMERA introduced a regression where it broke FN+F8 (touchpad disable key).
FIX
===
upstream commit to use the correct size for keymap entries fixed this regression.
TESTING
========
This upstream patch was tested by me on T410 and also on T510 by Steve Magoun and reported to fix this regression.
| 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 |
Accepted linux into maverick-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https:/
| Steve Magoun (smagoun) wrote : | #6 |
The 2.6.35-27.48 kernel in maverick-proposed fixes this problem on a T510
| Marius Gedminas (mgedmin) wrote : | #7 |
2.6.35-27.48 fixed my ThinkVantage key too (bug 721213, marked as duplicate to this one).
| tags: | added: verification-done-maverick |
| Launchpad Janitor (janitor) wrote : | #8 |
This bug was fixed in the package linux - 2.6.35-27.48
---------------
linux (2.6.35-27.48) maverick-proposed; urgency=low
[ Steve Conklin ]
* Release Tracking Bug
- LP: #723335
[ Upstream Kernel Changes ]
* thinkpad-acpi: avoid keymap pitfall
- LP: #722747
linux (2.6.35-27.47) maverick-proposed; urgency=low
[ Brad Figg ]
* Release Tracking Bug
- LP: #716532
[ Upstream Kernel Changes ]
* Revert "USB: gadget: Allow function access to device ID data during
bind()"
- LP: #714732
* net: fix rds_iovec page count overflow, CVE-2010-3865
- LP: #709153
- CVE-2010-3865
* Input: fix typo in keycode validation supporting large scancodes
- LP: #658198
* net: ax25: fix information leak to userland, CVE-2010-3875
- LP: #710714
- CVE-2010-3875
* net: ax25: fix information leak to userland harder, CVE-2010-3875
- LP: #710714
- CVE-2010-3875
* net: packet: fix information leak to userland, CVE-2010-3876
- LP: #710714
- CVE-2010-3876
* net: tipc: fix information leak to userland, CVE-2010-3877
- LP: #711291
- CVE-2010-3877
* posix-cpu-timers: workaround to suppress the problems with mt exec,
CVE-2010-4248
- LP: #712609
- CVE-2010-4248
* sys_semctl: fix kernel stack leakage, CVE-2010-4083
- LP: #712749
- CVE-2010-4083
* thinkpad-acpi: lock down size of hotkey keymap
- LP: #712174
* thinkpad-acpi: add support for model-specific keymaps
- LP: #712174
* thinkpad-acpi: Add KEY_CAMERA (Fn-F6) for Lenovo keyboards
- LP: #712174
* x86, hotplug: Use mwait to offline a processor, fix the legacy case
- LP: #714732
* fuse: verify ioctl retries
- LP: #714732
* fuse: fix ioctl when server is 32bit
- LP: #714732
* ALSA: hda: Use position_fix=1 for Acer Aspire 5538 to enable capture on
internal mic
- LP: #685161, #714732
* ALSA: hda: Use model=lg quirk for LG P1 Express to enable playback and
capture
- LP: #595482, #714732
* drm/radeon/kms: don't apply 7xx HDP flush workaround on AGP
- LP: #714732
* drm/kms: remove spaces from connector names (v2)
- LP: #714732
* drm/radeon/kms: fix vram base calculation on rs780/rs880
- LP: #714732
* nohz: Fix printk_needs_cpu() return value on offline cpus
- LP: #714732
* nohz: Fix get_next_
- LP: #714732
* nfsd: Fix possible BUG_ON firing in set_change_info
- LP: #714732
* NFS: Fix fcntl F_GETLK not reporting some conflicts
- LP: #714732
* sunrpc: prevent use-after-free on clearing XPT_BUSY
- LP: #714732
* hwmon: (adm1026) Allow 1 as a valid divider value
- LP: #714732
* hwmon: (adm1026) Fix setting fan_div
- LP: #714732
* EDAC: Fix workqueue-related crashes
- LP: #714732
* amd64_edac: Fix interleaving check
- LP: #714732
* ASoC: Fix swap of left and right channels for WM8993/4 speaker boost
gain
- LP: #714732
* ASoC: Fix off by one error in WM8994 EQ register bank size
- LP: #714732
* ASoC: WM8580: Fix R8 initial value
- LP: #714732
* ASoC: fix deemphasis control in wm8904/55/60 codecs
- LP: #714732
* bootmem: Add alloc_bootmem_...
| Vaibhav (vnagarnaik) wrote : | #9 |
I tested this on my Thinkpad T61 and could still reproduce the bug. I just
upgraded to the latest kernel. I see the ACPI event being sent using
acpi_listen.
$ dpkg -l | grep linux-image
ii linux-image-
$ uname -a
Linux Tux 2.6.35-
Please test the kernel in
http://
I tested this on a T410 and the FN+F8 disables and enables the touchpad.