Trackpad stops responding after suspend

[Jeppe Bundsgaard]

After upgrading from Ubuntu Gnome 17.04 to Ubuntu 17.10, the trackpad stops working after suspend (it actually works for a few seconds, then doesn't react). I can still use the touch screen.

Please tell me which log-files to upload.

Thanks

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1718654, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

Jeppe Bundsgaard (jeppe) wrote 12 hours ago:
It helped booting into 4.10.0-37. The touchpad now works after suspend.

[Daniel van Vugt (vanvugt)]

Jeppe, please let us know what model laptop you are using.

[Jeppe Bundsgaard (jeppe)]

I am using a Lenovo Yoga 900.

[Joseph Salisbury (jsalisbury)]

What kernel version does the bug exist in? Is it 4.10.0-38 and newer?

[Jonathan Elchison (jelchison)]

My data points:
* Broken on 4.13.0-16-generic
* Works on 4.10.0-37-generic

Both data points were gathered after having upgraded from Ubuntu 17.04 to 17.10 on my Dell XPS 9Q33 laptop.

[Jeppe Bundsgaard (jeppe)]

I installed 4.11.0, and the problem re-appears. So the bug was introduced between 4.10.0-37 and 4.11.0.

[Jeppe Bundsgaard (jeppe)]

Kernel 4.14.0 and 4.13.12 fix the problem.

[Joseph Salisbury (jsalisbury)]

The proposed Artful kernel now has the 4.13.12 updates and is in the -proposed repository.

Would it be possible for you to test the proposed kernel and post back if it resolves this bug?
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed.

Thank you in advance!

[Daniel van Vugt (vanvugt)]

It's been a while. And Jeppe has already said that 4.13.12 fixes the issue. Both here and in bug 1718654. Maybe assume Fix Released.