[Bug 1813957] Re: T480: closed lid and touchpad

Could you try these steps:

1, remove i2c_i801 from /etc/modprobe.d/blacklist.conf
2, update-initramfs -u -k all
3, Then boot with "psmouse.synaptics_intertouch=1" in cmdline.

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https://bugs.launchpad.net/bugs/1813957

Title:
T480: closed lid and touchpad

Status in linux package in Ubuntu:
Confirmed

Bug description:
After closing the lid and working with externals screens and mouse and
keyboard, the mouse cursor jumps. The effect is caused by touchpad:
the workaround is to completely disable it in settings.


This bug is 4.15.0-44 kernel specific. With the previous version 4.15.0-43 the problem was not observed.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-44-generic 4.15.0-44.47
ProcVersionSignature: Ubuntu 4.15.0-43.46-generic 4.15.18
Uname: Linux 4.15.0-43-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: afiergol 9976 F.... pulseaudio
/dev/snd/pcmC0D0p: afiergol 9976 F...m pulseaudio
/dev/snd/controlC0: afiergol 9976 F.... pulseaudio
CurrentDesktop: GNOME
Date: Wed Jan 30 17:29:35 2019
HibernationDevice: RESUME=UUID=7b4a9d17-f6d7-42ed-8f12-34f46c41cc6c
InstallationDate: Installed on 2018-04-05 (300 days ago)
InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228)
MachineType: LENOVO 20L6S04200
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-43-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash nogpumanager intel_iommu=on,igfx_off iommu=pt kvm.ignore_msrs=1
RelatedPackageVersions:
linux-restricted-modules-4.15.0-43-generic N/A
linux-backports-modules-4.15.0-43-generic N/A
linux-firmware 1.173.3
SourcePackage: linux
UpgradeStatus: Upgraded to bionic on 2018-08-22 (161 days ago)
dmi.bios.date: 11/07/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: N24ET44W (1.19 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20L6S04200
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN24ET44W(1.19):bd11/07/2018:svnLENOVO:pn20L6S04200:pvrThinkPadT480:rvnLENOVO:rn20L6S04200:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad T480
dmi.product.name: 20L6S04200
dmi.product.version: ThinkPad T480
dmi.sys.vendor: LENOVO

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