[Lenovo G550] Alps touchpad detected, but scrolling not working
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Incomplete
|
Low
|
Unassigned |
Bug Description
Before the 2.6.38 kernel the touchpad was not detected at all. Now it is, but the vertical scrolling still not working.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-
Regression: Yes
Reproducible: No
ProcVersionSign
Uname: Linux 2.6.38-
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: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf4700000 irq 47'
Mixer name : 'Conexant CX20561 (Hermosa)'
Components : 'HDA:14f15051,
Controls : 16
Simple ctrls : 8
CheckboxSubmission: ecd19ca3a26f16a
CheckboxSystem: 3e53d3ea5811723
Date: Thu Mar 17 19:52:02 2011
Frequency: Once a day.
HibernationDevice: RESUME=
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: LENOVO 20023
ProcEnviron:
LANG=hu_HU.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.48
SourcePackage: linux
UpgradeStatus: Upgraded to natty on 2011-02-21 (23 days ago)
dmi.bios.date: 05/21/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 18CN46WW(V2.55)
dmi.board.name: NITU1
dmi.board.vendor: LENOVO
dmi.board.version: REFERENCE
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: No Enclosure
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 20023
dmi.product.
dmi.sys.vendor: LENOVO
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
Changed in linux: | |
importance: | Unknown → Medium |
status: | Unknown → Confirmed |
Changed in linux: | |
status: | Confirmed → Fix Released |
summary: |
- [regression] Alps touchpad detected, but scrolling not working + [Lenovo G550] Alps touchpad detected, but scrolling not working |
tags: | added: latest-bios-v2.55 |
Using the below command, you can tell Ubuntu to treat it as a PS/2 mouse with a scroll wheel:
echo "options psmouse proto=imps"|sudo tee -a /etc/modprobe. d/psmouse. conf; sudo modprobe -r psmouse; sudo modprobe psmouse
(Thank you help.ubuntu.com)