For Robin (brobert420), who in comment #69:
> Commenting out blacklist i2c_i801 did end with mouse not working at all after
> wakeup […]. I got an L440. Ubuntu 18.04 4.19rc1
I had the same problem with a ThinkPad T440s on Ubuntu 19.10 beta. (Just
that there was no blacklist entry in /etc/modprobe.d/blacklist.conf so I
used "modprobe i2c_i801" instead.)
However, when I instead use the module name with a "-" instead of "_":
modprobe i2c-i801
then it works immediately to restore two-finger scrolling, and two-
finger scrolling keeps working after a suspend-and-resume cycle.
In other news, this bug is still present in Ubuntu 19.10.
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https://bugs.launchpad.net/bugs/1722478
Title:
Two-finger scrolling no longer works after resuming from suspend
Status in Linux:
Confirmed
Status in linux package in Ubuntu:
Incomplete
Bug description:
I own a Thinkpad T440p onto which I have had Debian 9 running without
hardware issues. I have recently installed Ubuntu 17.10 final beta to
test it out, but two-finger scrolling does not work at the moment. It
used to work out-of-the-box from the final beta iso, but a subsequent
update broke it.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-image-4.13.0-12-generic 4.13.0-12.13 [modified:
boot/vmlinuz-4.13.0-12-generic]
ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3
Uname: Linux 4.13.0-12-generic x86_64
ApportVersion: 2.20.7-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC1: ghislain 10620 F pulseaudio
/dev/snd/controlC0: ghislain 10620 F pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Tue Oct 10 09:20:01 2017
HibernationDevice: RESUME=UUID=ae4cca1e-80ef-4a1e-87e3-0a860b49492e
InstallationDate: Installed on 2017-10-05 (4 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926)
MachineType: LENOVO 20AN00C1UK
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-12-generic
root=/dev/mapper/doc1485--lap--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.13.0-12-generic N/A
linux-backports-modules-4.13.0-12-generic N/A
linux-firmware 1.169
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/31/2016
dmi.bios.vendor: LENOVO
dmi.bios.version: GLET83WW (2.37 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20AN00C1UK
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrGLET83WW(2.37):bd03/31/2016:svnLENOVO:pn20AN00C1UK:pvrThinkPadT440p:rvnLENOVO:rn20AN00C1UK:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.family: ThinkPad T440p
dmi.product.name: 20AN00C1UK
dmi.product.version: ThinkPad T440p
dmi.sys.vendor: LENOVO
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