Dell XPS 12-9Q33 (2013) Synaptics Touchpad not recognized in kernel 3.10 and 3.11

[Wouter van der Graaf]

First I installed stock Ubuntu 13.04 Raring Ringtail with kernel 3.8. Trackpad was functioning correctly (e.g. two-finger scrolling worked) and was recognized as Synaptics device in /proc/bus/input/devices.

Due to very new Intel wireless 7260 hardware that did not work in kernel 3.8, I dist-upgraded to 13.10 Saucy Salamander with kernel 3.11. With this kernel my Synaptics trackpad is no longer recognized as Synaptics and works as default evdev pointer (mouse) device, without all the trackpad features.

This bug report was done with kernel 3.11rc7, but applies also to kernel 3.10 and the latest saucy kernel 3.11 to which I'm upgraded by software updater.

Instead of Synaptics, devices lists it as below:

I: Bus=0018 Vendor=06cb Product=2734 Version=0100
N: Name="DLL05E3:01 06CB:2734"
P: Phys=
S: Sysfs=/devices/pci0000:00/INT33C3:00/i2c-8/8-002c/input/input11
U: Uniq=
H: Handlers=mouse0 event11
B: PROP=0
B: EV=17
B: KEY=30000 0 0 0 0
B: REL=3
B: MSC=10

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: xserver-xorg-input-synaptics 1.7.1-0ubuntu1
Uname: Linux 3.11.0-031100rc7-generic x86_64
ApportVersion: 2.12.1-0ubuntu3
Architecture: amd64
Date: Mon Sep 2 11:52:16 2013
DistUpgraded: 2013-09-01 22:21:35,082 DEBUG enabling apt cron job
DistroCodename: saucy
DistroVariant: ubuntu
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-08-09 (23 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MachineType: Dell Inc. XPS 12-9Q33
MarkForUpload: True
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-031100rc7-generic root=UUID=8e4879ce-4777-4c48-b6d7-5b3b4b116ad3 ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-input-synaptics
UpgradeStatus: Upgraded to saucy on 2013-09-01 (0 days ago)
dmi.bios.date: 06/20/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A01
dmi.board.name: XPS 12-9Q33
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: Not Specified
dmi.modalias: dmi:bvnDellInc.:bvrA01:bd06/20/2013:svnDellInc.:pnXPS12-9Q33:pvrA01:rvnDellInc.:rnXPS12-9Q33:rvrA01:cvnDellInc.:ct8:cvrNotSpecified:
dmi.product.name: XPS 12-9Q33
dmi.product.version: A01
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.10+13.10.20130828.2-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.46-1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.2-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.2-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.14.2.901-2ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.14-4ubuntu3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
xserver.bootTime: Mon Sep 2 11:22:49 2013
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 1021
 vendor LGD
xserver.version: 2:1.14.2.901-2ubuntu4

[Ads20000 (ads20000)]

Another combination you could try is 13.10 with 3.11rc? That would probably work better because 3.11rc would be closer to Saucy's 3.10 than Raring's 3.8...

[Wouter van der Graaf (wouter-dynora)]

In fact my bug report is based on kernel v3.11-rc7-saucy with 13.10. Everything in my XPS 12 2013 seems to work fine with current Saucy development and kernel 3.11rc, *except* the trackpad. Strange that my Synaptic did work in 3.8 and not anymore since 3.10 and 3.11rc.

[Wouter van der Graaf (wouter-dynora)]

Is this perhaps a kernel bug and should this report therefore be reassigned to the kernel team?

[Wouter van der Graaf (wouter-dynora)]

I've upgraded to the latest saucy 3.11.0-7 kernel, but the trackpad is still not recognized as Synaptics. In kernel 3.8 it did work as expected.

[Wouter van der Graaf (wouter-dynora)]

I suspect this is a kernel bug, because switching back to older 3.8 kernel makes my trackpad correctly recognized in /proc/bus/input/devices.

[Brad Figg (brad-figg)]

This change was made by a bot.

[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 v3.12 kernel[0].

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/v3.12-rc1-saucy/

[Wouter van der Graaf (wouter-dynora)]

Unfortunately, this bug is not fixed in upstream kernel 3.12-rc1.

Recently found out this bug is a duplicate of #1218973.

[Wouter van der Graaf (wouter-dynora)]

The other duplicate bug report has more activity:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1218973