With the mainline kernel, the psmouse.synaptics_intertouch=1 kernel
option does not appear to be necessary any longer, but I still need to
un-blacklist the i2c_i801 module in /etc/modprobe.d/blacklist.conf and
rebuild my initramfs.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Tags added: kernel-bug-exists-upstream
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1794876
Title:
Touchpad doesn't work out-of-the-box in Ubuntu 18.04.1 with ThinkPad
X1 carbon
Status in linux package in Ubuntu:
Confirmed
Bug description:
The touchpad doesn't work after installing Ubuntu 18.04.1 on a new
Lenovo ThinkPad X1 Carbon laptop. I see log messages like these
repeatedly:
```
Sep 27 15:41:17 jik-x1 kernel: [ 3.824013] psmouse serio2: Failed to reset
mouse on synaptics-pt/serio0
Sep 27 15:41:17 jik-x1 kernel: [ 9.388812] psmouse serio2: Failed to
enable mouse on synaptics-pt/serio0
Sep 27 15:41:30 jik-x1 kernel: [ 33.124787] psmouse serio1: TouchPad at
isa0060/serio1/input0 lost sync at byte 1
Sep 27 15:41:30 jik-x1 kernel: [ 33.126159] psmouse serio1: TouchPad at
isa0060/serio1/input0 lost sync at byte 1
Sep 27 15:41:30 jik-x1 kernel: [ 33.127437] psmouse serio1: TouchPad at
isa0060/serio1/input0 lost sync at byte 1
Sep 27 15:41:30 jik-x1 kernel: [ 33.132428] psmouse serio1: TouchPad at
isa0060/serio1/input0 lost sync at byte 1
Sep 27 15:41:30 jik-x1 kernel: [ 33.133608] psmouse serio1: TouchPad at
isa0060/serio1/input0 lost sync at byte 1
Sep 27 15:41:30 jik-x1 kernel: [ 33.133613] psmouse serio1: issuing
reconnect request
```
I also saw this on boot:
```
Sep 27 14:00:29 jik-x1 kernel: [ 3.405390] psmouse serio1: synaptics: Your
touchpad (PNP: LEN0091 PNP0f13) says it can support a different bus. If i2c-hid
and hid-rmi are not used, you might want to try setting
psmouse.synaptics_intertouch to 1 and report this to
[email protected].
```
The touchpad works for a second or two after it is reset and then
stops working again.
There are other bugs about this (e.g.,
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1723986) but they
claim the issue is fixed.
To fix this I had to:
1. Remove `blacklist i2c_i801` from `/etc/modprobe.d/blacklist.conf`.
2. Update my initramfs after doing so.
3. Add `psmouse.synaptics_intertouch=1` to `GRUB_CMDLINE_LINUX_DEFAULT` in
`/etc/default/grub`.
4. Update my grub configuration after doing so.
5. Reboot.
Neither of these fixes by itself was sufficient.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-34-generic 4.15.0-34.37
ProcVersionSignature: Ubuntu 4.15.0-34.37-generic 4.15.18
Uname: Linux 4.15.0-34-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: jik 4438 F.... pulseaudio
/dev/snd/controlC1: jik 4438 F.... pulseaudio
/dev/snd/controlC0: jik 4438 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Thu Sep 27 17:06:49 2018
HibernationDevice: RESUME=UUID=809b24c2-f7bc-493e-97dc-02bd6293d3bc
InstallationDate: Installed on 2018-09-27 (0 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
(20180725)
MachineType: LENOVO 20KHCTO1WW
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-34-generic
root=/dev/mapper/vgencrypted-lvencryptedroot ro quiet splash
psmouse.synaptics_intertouch=1 vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-4.15.0-34-generic N/A
linux-backports-modules-4.15.0-34-generic N/A
linux-firmware 1.173.1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/31/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: N23ET55W (1.30 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20KHCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrN23ET55W(1.30):bd08/31/2018:svnLENOVO:pn20KHCTO1WW:pvrThinkPadX1Carbon6th:rvnLENOVO:rn20KHCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad X1 Carbon 6th
dmi.product.name: 20KHCTO1WW
dmi.product.version: ThinkPad X1 Carbon 6th
dmi.sys.vendor: LENOVO
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1794876/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
