Bug 1548550

Summary: Cursor jitter after 1.10 update
Product: [Fedora] Fedora Reporter: Alexander Mikhaylenko <alexm>
Component: libinputAssignee: Peter Hutterer <peter.hutterer>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 27CC: dchen, peter.hutterer, reiter.christoph
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Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: libinput-1.10.1-2.fc27 Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2018-03-06 17:30:49 UTC Type: Bug
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
evemu recording from with libinput-1.10.0-2.fc27
none
evemu recording with libinput-1.8.2-1.fc27 none

Description Alexander Mikhaylenko 2018-02-23 20:13:55 UTC
Created attachment 1400032 [details]
evemu recording from with libinput-1.10.0-2.fc27

When holding or moving a finger on touchpad, cursor jitters.

libinput-1.10.0-2.fc27

This does not happen with 1.8.2-1.fc27 at least, and didn't happen until a recent update to 1.10.0-2.fc27.

Laptop: Asus P53E

$ udevadm info /sys/class/input/event4
P: /devices/platform/i8042/serio4/input/input11/event4
N: input/event4
E: DEVNAME=/dev/input/event4
E: DEVPATH=/devices/platform/i8042/serio4/input/input11/event4
E: ID_BUS=i8042
E: ID_INPUT=1
E: ID_INPUT_HEIGHT_MM=42
E: ID_INPUT_TOUCHPAD=1
E: ID_INPUT_TOUCHPAD_INTEGRATION=internal
E: ID_INPUT_WIDTH_MM=82
E: LIBINPUT_DEVICE_GROUP=11/2/7:isa0060/serio4
E: LIBINPUT_MODEL_JUMPING_SEMI_MT=1
E: LIBINPUT_MODEL_SYNAPTICS_SERIAL_TOUCHPAD=1
E: MAJOR=13
E: MINOR=68
E: SUBSYSTEM=input
E: USEC_INITIALIZED=22172036

$ cat /sys/class/dmi/id/modalias
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:

Comment 1 Alexander Mikhaylenko 2018-02-23 20:15:08 UTC
Created attachment 1400033 [details]
evemu recording with libinput-1.8.2-1.fc27

Comment 2 Alexander Mikhaylenko 2018-02-23 20:19:22 UTC
Additionally, it happens during two-finger scrolling.

And it doesn't happen for some time right after starting a session or when switching from a tty, but I don't really understand when/after what exactly it starts happening.

It happens both on Wayland and X11.

Comment 3 Christoph Reiter 2018-02-24 17:16:17 UTC
I have the same problem with a Thinkpad X220

Comment 4 Fedora Update System 2018-03-02 05:09:03 UTC
libinput-1.10.1-2.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2018-82be4acb08

Comment 5 Alexander Mikhaylenko 2018-03-02 12:29:33 UTC
libinput-1.10.1-2.fc27 seems to be working fine so far.

Comment 6 Fedora Update System 2018-03-02 17:34:12 UTC
libinput-1.10.1-2.fc27 has been pushed to the Fedora 27 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-82be4acb08

Comment 7 Fedora Update System 2018-03-06 17:30:49 UTC
libinput-1.10.1-2.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.