Regression 16.04 LTS to 18.04 LTS: Contour Design RollerMouse double click button no longer results in a double click event

[Christoffer Holmstedt]

https://gitlab.freedesktop.org/libinput/libinput/issues/204

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### Expected behaviour
My "Contour Design RollerMouse Free 2" has a specific button for double click. This button should with one physical click result in double click (button press, button release, button press and button release).

This works as expected without issues in Ubuntu 16.04 LTS 4.4.0-119-generic #143-Ubuntu SMP Mon Apr 2 16:08:24 UTC 2018 x86_64

### Experienced behaviour
Only one mouse click is registered (button press and button release). Tested with "xev" and "xinput test"

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-20-generic 4.15.0-20.21
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Apr 28 16:26:08 2018
InstallationDate: Installed on 2018-04-27 (1 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: linux-signed
UpgradeStatus: No upgrade log present (probably fresh install)

[Christoffer Holmstedt (christoffer-holmstedt)]

I read up on https://www.kernel.org/doc/Documentation/input/input.txt and tested with "evtest" for the RollerMouse and can see that the kernel emits proper events, as far as I understand.

### Single left click button
Event: time 1525013249.812780, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90001
Event: time 1525013249.812780, type 1 (EV_KEY), code 272 (BTN_LEFT), value 1
Event: time 1525013249.812780, -------------- SYN_REPORT ------------
Event: time 1525013249.936782, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90001
Event: time 1525013249.936782, type 1 (EV_KEY), code 272 (BTN_LEFT), value 0
Event: time 1525013249.936782, -------------- SYN_REPORT ------------

### Double click button
Event: time 1525013251.656770, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90001
Event: time 1525013251.656770, type 1 (EV_KEY), code 272 (BTN_LEFT), value 1
Event: time 1525013251.656770, -------------- SYN_REPORT ------------
Event: time 1525013251.660700, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90001
Event: time 1525013251.660700, type 1 (EV_KEY), code 272 (BTN_LEFT), value 0
Event: time 1525013251.660700, -------------- SYN_REPORT ------------
Event: time 1525013251.664778, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90001
Event: time 1525013251.664778, type 1 (EV_KEY), code 272 (BTN_LEFT), value 1
Event: time 1525013251.664778, -------------- SYN_REPORT ------------
Event: time 1525013251.668782, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90001
Event: time 1525013251.668782, type 1 (EV_KEY), code 272 (BTN_LEFT), value 0
Event: time 1525013251.668782, -------------- SYN_REPORT ------------

What is inbetween what the kernel emits to /dev/input/eventX and what is registered by "xev" and "xinput"?

[Launchpad Janitor (janitor)]

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

[James Seiters (cichlasoma)]

I have the same problem except for the model of my hardware is:
Contour Design RollerMouse Red plus

DistroRelease: Kubuntu 18.04
Uname: Linux 4.15.0-20-generic x86_64
Architecture: amd64
CurrentDesktop: ubuntu:KDE
InstallationDate: Installed on 2018-04-29
InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64

[Christoffer Holmstedt (christoffer-holmstedt)]

As far as I understand from my testing with xev, xinput test and evtest there is no issue with the kernel but instead the problem is somewhere inside xorg.

[Daniel van Vugt (vanvugt)]

Please check if the bug still occurs in Ubuntu 18.10:
http://cdimage.ubuntu.com/daily-live/current/

If it does then please report the bug to upstream here:
  https://gitlab.freedesktop.org/libinput/libinput/issues/new
and tell us what the new bug ID is.

[Christoffer Holmstedt (christoffer-holmstedt)]

@vanvugt: Ok, thanks for the information I will test 18.10 when it is officially released.

[Arne Hanssen (kingel)]

This bug affects me too, starting with 18.04 and did not disappear after upgrading to 18.10. I'm using xubuntu 64-bit desktop version.

[Sean Chu (sean1985zc2)]

This affects me too:
RollerMouse Red
Kubuntu 18.10

[Jul (jul39)]

This affects me too.

I have reported the bug on gitlab : https://gitlab.freedesktop.org/libinput/libinput/issues/204

[Christoffer Holmstedt (christoffer-holmstedt)]

@vanvugt I tried to add the upstream link to launchpad but I just get errors. The URL is not recognized by launchpad. (https://gitlab.freedesktop.org/libinput/libinput/issues/204)

[Christoffer Holmstedt (christoffer-holmstedt)]

For 18.10 with libinput 1.12.x there is a workaround now. Download https://gitlab.freedesktop.org/libinput/libinput/blob/master/quirks/30-vendor-contour.quirks and save it as /etc/libinput/local-overrides.quirks, restart your computer.

The fix is for RollerMouse Free 2 and RollerMouse Red. If you have any other version of the rollermouse please run "sudo udevadm info /dev/input/eventX" where X is the proper event number for your rollermouse. If you don't know the event number run "sudo libinput list-devices". From the udevadm command find the ID_MODEL_ID and put it in the local-overrides.quirks file as MatchProduct value. Also, please post the ID_MODEL_ID as well as ID_SERIAL so it can be added upstream as well.

Why it has worked before 18.04 is unknown as the quirks system didn't exist in the 1.10.x series of libinput. Maybe it has something to do with change from Unity to Gnome. If libinput 1.12 or later series gets backported to Ubuntu 18.04 LTS it will start to work again.

[Timo Jyrinki (timo-jyrinki)]

A customer would like to get this working on Ubuntu 18.04 LTS. However libinput is not part of the standard HWE backport stack, so I guess the likelihood to get the quirk support for 18.04 LTS is fairly low I guess?

I'm going to try my own backport (of the whole libinput 1.12 package) from https://launchpad.net/~timo-jyrinki/+archive/ubuntu/libinput the next time I visit. soname seems to be the same so maybe it'd be drop-in compatible.

[Timo Jyrinki (timo-jyrinki)]

The 1.12.6 in disco and my PPA should have the quirk installed by default for Contour Design RollerMouse Free 2 and Re:d so it should just work. Hence marking as Fix Released for development release and leaving it up to stable maintainers to decide whether something should/could be done for 18.04.

[Sebastien Bacher (seb128)]

That bug would be good to fix for bionic but desktop team as the owner of the component doesn't want to commit to that so deleting the bionic target and tagging rls-bb-notfixing (it doesn't mean it can't/will not be fixed though)

[Timo Jyrinki (timo-jyrinki)]

FYI a person contacted me about Red v3 and support for that is now included in upstream, https://gitlab.freedesktop.org/libinput/libinput/blob/master/quirks/30-vendor-contour.quirks

If you have other models with other USB ids and find this bug report, please follow his example and contribute a section to that quirks file either via the "Issues" or "Merge Requests" feature on that linked site.