Touchpad 3 button click no longer works after resume.

[Darin Miller]

After suspending the laptop, middle click) on Yoga 2 pro touch pad stops working. Sometimes middle click emulation survives 3 or more suspends, but usually not more than 5.

Only method to restore middle click is to reboot.

All other touch pad functionality works fine.

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: linux-image-4.8.0-27-generic 4.8.0-27.29
ProcVersionSignature: Ubuntu 4.8.0-27.29-generic 4.8.1
Uname: Linux 4.8.0-27-generic x86_64
ApportVersion: 2.20.3-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: darin 1299 F.... pulseaudio
 /dev/snd/controlC0: darin 1299 F.... pulseaudio
CurrentDesktop: KDE
Date: Thu Nov 17 22:43:20 2016
HibernationDevice: RESUME=UUID=e7e99dfd-706a-4f9d-ab08-85b062127431
InstallationDate: Installed on 2016-11-15 (3 days ago)
InstallationMedia: Kubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.1)
MachineType: LENOVO 20266
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-27-generic.efi.signed root=UUID=ebd9d973-be2f-4f3b-9686-c4141a1a7b67 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.8.0-27-generic N/A
 linux-backports-modules-4.8.0-27-generic N/A
 linux-firmware 1.161
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/17/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 76CN27WW
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Yoga2
dmi.board.vendor: LENOVO
dmi.board.version: 31900058STD
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo Yoga 2 Pro
dmi.modalias: dmi:bvnLENOVO:bvr76CN27WW:bd09/17/2013:svnLENOVO:pn20266:pvrLenovoYoga2Pro:rvnLENOVO:rnYoga2:rvr31900058STD:cvnLENOVO:ct10:cvrLenovoYoga2Pro:
dmi.product.name: 20266
dmi.product.version: Lenovo Yoga 2 Pro
dmi.sys.vendor: LENOVO

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.9 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'.

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/v4.9-rc5

[Darin Miller (darinmiller)]

The Yoga Pro 2 touch pad was very sketchy (nearly useless) on the old xorg driver.

With the exception of 2 issues, the touch pad works perfectly with libinput as long I install xserver-xorg-input-libinput driver. Last remaining issues:
- Middle mouse click lost after resume
- Touchpad always detects my palm (both movement and tap click)

With libinput still under heavy development, I have been waiting/hoping these issues would eventually disappear. But now that its maturing, I filed this BR.

After testing kernel 4.9.0-040900rc5, middle click is still working after 8 resumes. So, I would tentatively say, the new kernel seems to have fixed the middle click issue (more testing required to be certain).

Now to file a palm detection bug against libinput....

[penalvch (penalvch)]

Darin Miller, the next step is to fully reverse commit bisect from kernel 4.8 to 4.9-rc5 in order to identify the last bad commit, followed immediately by the first good one. Once this good commit has been identified, it may be reviewed for backporting. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F ?

Please note, finding adjacent kernel versions is not fully commit bisecting.

Also, the kernel release names are irrelevant for the purposes of bisecting.

It is most helpful that after the fix commit (not kernel version) has been identified, you then mark this report Status Confirmed.

Thank you for your help.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]