linux kernel 3.2.0-30-generic #48: vertical scroll area in wrong place with synaptic touchpad

[Jonas T.]

With the new kernel "3.2.0-30-generic #48" in Ubuntu precise, the vertical scroll area of my synaptics has moved from the right border of the touchpad quite a bit to the left. In effect, the rightmost area of the touchpad moves the mouse cursor instead of triggering vertical scroll. If I then move my finger a bit to the left, vertical scroll starts working.

This is a regression from 3.2.0-29-generic where this works just fine.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-30-generic 3.2.0-30.48
ProcVersionSignature: Ubuntu 3.2.0-30.48-generic 3.2.27
Uname: Linux 3.2.0-30-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu12
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jonas 1740 F.... xfce4-volumed
                      jonas 1755 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'I82801DBICH4'/'Intel 82801DB-ICH4 with ALC650F at irq 7'
   Mixer name : 'Realtek ALC650F'
   Components : 'AC97a:414c4723'
   Controls : 50
   Simple ctrls : 33
CurrentDmesg:
 [ 23.775752] lib80211_crypt: registered algorithm 'CCMP'
 [ 34.728026] eth1: no IPv6 routers present
Date: Wed Sep 5 21:28:21 2012
HibernationDevice: RESUME=UUID=0838ee23-05bb-482e-8445-fd1cfe92bfd8
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 002: ID 0ccd:00ab TerraTec Electronic GmbH
MachineType: ASUSTeK Computer Inc. W3N
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-30-generic root=UUID=0ab9d9df-9ed2-4c72-96fb-9e922a13910f ro splash quiet vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-30-generic N/A
 linux-backports-modules-3.2.0-30-generic N/A
 linux-firmware 1.79
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/26/2005
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0205
dmi.board.name: W3N
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0205:bd08/26/2005:svnASUSTeKComputerInc.:pnW3N:pvr1.0:rvnASUSTeKComputerInc.:rnW3N:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: W3N
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.

[Yann (ylevot)]

I'm facing exactly the same issue with the synaptic touchpad with my A6J Asus laptop after upgrading the kernel. The scroll bar has moved to the left direction as well. It worked properly with the previous 3.2.0-29 kernel.

$ uname -a
Linux yann-A6J 3.2.0-30-generic #48-Ubuntu SMP Fri Aug 24 16:54:40 UTC 2012 i686 i686 i386 GNU/Linux

$ dmesg | grep -i touchpad
[ 30.584964] psmouse serio4: synaptics: Touchpad model: 1, fw: 6.1, id: 0xa3a0b3, caps: 0xa04713/0x10008/0x0
[ 30.622458] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio4/input/input7

Yann.

[Joseph Salisbury (jsalisbury)]

This might be a duplicate of bug 1046512

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.6 kernel[0] (Not a kernel in the daily directory) and install both the linux-image and linux-image-extra .deb packages.

Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. Please only remove that one tag and leave the other tags. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6-rc4-quantal/

[Jonas T. (jo-t)]

Hi Joseph,

unfortunately, I cannot even install the mainline kernel since my rather old laptop does not yet have the physical address extension:

> Unpacking linux-image-3.6.0-030600rc4-generic (from linux-image-3.6.0-030600rc4-generic_3.6.0-030600rc4.201209011435_i386.deb) ...
> This kernel does not support a non-PAE CPU.
> dpkg: error processing linux-image-3.6.0-030600rc4-generic_3.6.0-030600rc4.201209011435_i386.deb (--install):
 subprocess new pre-installation script returned error exit status 1

If there is any other kernel available, I'll be happy to test it.

Maybe Yann can test the mainline kernel? I'll wait for one day before I set the 'kernel-unable-to-test-upstream' tag.

Jonas

[Anca Emanuel (anca-emanuel)]

Possible duplicate of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1046512

Reverting this
https://patchwork.kernel.org/patch/1283051/
solves the problem for me.

[Jonas T. (jo-t)]

Yep, after waiting for some ours on my old machine to build the kernel, I can confirm this, Anca.

I'm therefore marking this bug report as a duplicate of yours.