Public bug reported:
After installing bionic on two thinkpads (x131e, x230), I've noticed
that once you stop motion on the trackpoint (and possibly apply a
miniscule amount of pressure on it after stopping), the cursor will jump
in the direction of the previous motion by a small amount. This makes
the computer incredibly difficult to use as you can't accurately target
things. Furthermore, the speed of the cursor has increased
substantially.
I have a slow motion video captured on an iPhone that demonstrates this
behaviour but I can't upload it at this moment. If someone wants to see
it, I might be able to post it later.
I've also narrowed down the problem to libinput. I bisected the
different releases via the debian sources (with the packages built from
them) and narrowed it to some changes between 1.8 and 1.9. This makes
sense as I previously didn't notice this behaviour on Artful, which is
on libinput 1.8. This issue affects all distros as well, given that it's
a libinput issue.
I also tested the latest libinput, 1.10.7, and it does NOT resolve this
issue.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: libinput-bin 1.10.4-1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu May 24 20:07:52 2018
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
DkmsStatus:
acpi_call, 1.2.0, 4.15.0-15-generic, x86_64: installed
acpi_call, 1.2.0, 4.15.0-20-generic, x86_64: installed
acpi_call, 1.2.0, 4.15.0-22-generic, x86_64: installed
GraphicsCard:
Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev
09) (prog-if 00 [VGA controller])
Subsystem: Lenovo 3rd Gen Core processor Graphics Controller [17aa:21fe]
InstallationDate: Installed on 2018-04-16 (38 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Beta amd64 (20180404)
MachineType: LENOVO 33691J6
ProcEnviron:
LANGUAGE=en_CA:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_CA.UTF-8
SHELL=/bin/zsh
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic
root=UUID=e504e156-d82a-4ff6-8582-ced4b5d9fd8c ro rootflags=subvol=@ quiet
splash vt.handoff=1
SourcePackage: libinput
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/18/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: G8ET96WW (2.56 )
dmi.board.asset.tag: Not Available
dmi.board.name: 33691J6
dmi.board.vendor: LENOVO
dmi.board.version: 0B98401 PRO
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrG8ET96WW(2.56):bd12/18/2013:svnLENOVO:pn33691J6:pvrThinkPadX131e:rvnLENOVO:rn33691J6:rvr0B98401PRO:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.family: ThinkPad X131e
dmi.product.name: 33691J6
dmi.product.version: ThinkPad X131e
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.0~rc5-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.0~rc5-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
** Affects: libinput (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic ubuntu
** Description changed:
After installing bionic on two thinkpads (x131e, x230), I've noticed
that once you stop motion on the trackpoint (and possibly apply a
miniscule amount of pressure on it after stopping), the cursor will jump
in the direction of the previous motion by a small amount. This makes
the computer incredibly difficult to use as you can't accurately target
things. Furthermore, the speed of the cursor has increased
substantially.
I have a slow motion video captured on an iPhone that demonstrates this
behaviour but I can't upload it at this moment. If someone wants to see
it, I might be able to post it later.
I've also narrowed down the problem to libinput. I bisected the
different releases via the debian sources (with the packages built from
them) and narrowed it to some changes between 1.8 and 1.9. This makes
sense as I previously didn't notice this behaviour on Artful, which is
- on libinput 1.8.
+ on libinput 1.8. This issue affects all distros as well, given that it's
+ a libinput issue.
I also tested the latest libinput, 1.10.7, and it does NOT resolve this
issue.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: libinput-bin 1.10.4-1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu May 24 20:07:52 2018
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
DkmsStatus:
- acpi_call, 1.2.0, 4.15.0-15-generic, x86_64: installed
- acpi_call, 1.2.0, 4.15.0-20-generic, x86_64: installed
- acpi_call, 1.2.0, 4.15.0-22-generic, x86_64: installed
+ acpi_call, 1.2.0, 4.15.0-15-generic, x86_64: installed
+ acpi_call, 1.2.0, 4.15.0-20-generic, x86_64: installed
+ acpi_call, 1.2.0, 4.15.0-22-generic, x86_64: installed
GraphicsCard:
- Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166]
(rev 09) (prog-if 00 [VGA controller])
- Subsystem: Lenovo 3rd Gen Core processor Graphics Controller [17aa:21fe]
+ Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166]
(rev 09) (prog-if 00 [VGA controller])
+ Subsystem: Lenovo 3rd Gen Core processor Graphics Controller [17aa:21fe]
InstallationDate: Installed on 2018-04-16 (38 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Beta amd64 (20180404)
MachineType: LENOVO 33691J6
ProcEnviron:
- LANGUAGE=en_CA:en
- PATH=(custom, no user)
- XDG_RUNTIME_DIR=<set>
- LANG=en_CA.UTF-8
- SHELL=/bin/zsh
+ LANGUAGE=en_CA:en
+ PATH=(custom, no user)
+ XDG_RUNTIME_DIR=<set>
+ LANG=en_CA.UTF-8
+ SHELL=/bin/zsh
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic
root=UUID=e504e156-d82a-4ff6-8582-ced4b5d9fd8c ro rootflags=subvol=@ quiet
splash vt.handoff=1
SourcePackage: libinput
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/18/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: G8ET96WW (2.56 )
dmi.board.asset.tag: Not Available
dmi.board.name: 33691J6
dmi.board.vendor: LENOVO
dmi.board.version: 0B98401 PRO
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrG8ET96WW(2.56):bd12/18/2013:svnLENOVO:pn33691J6:pvrThinkPadX131e:rvnLENOVO:rn33691J6:rvr0B98401PRO:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.family: ThinkPad X131e
dmi.product.name: 33691J6
dmi.product.version: ThinkPad X131e
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.0~rc5-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.0~rc5-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
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https://bugs.launchpad.net/bugs/1773276
Title:
Cursor jumps at the end of trackpoint movement with libinput 1.9+ on
thinkpads on Bionic
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