Bug 104948 - libinput bug: timer event9 tap: offset negative
Summary: libinput bug: timer event9 tap: offset negative
Status: RESOLVED NOTOURBUG
Alias: None
Product: Wayland
Classification: Unclassified
Component: libinput (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Wayland bug list
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-02-05 12:16 UTC by ad1rie3
Modified: 2018-02-06 10:16 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:


Attachments
Xorg log file (28.25 KB, text/plain)
2018-02-05 12:16 UTC, ad1rie3
Details

Description ad1rie3 2018-02-05 12:16:17 UTC
Created attachment 137168 [details]
Xorg log file

Hello, 

When i hybernate and resume my computer, after 2 second of touchpad working, 
The touchpad not responding and recover after 10 seconde. 

The log in Xorg.log : 
[  7804.226] (EE) libinput bug: timer event9 tap: offset negative (-1060798)
[  7804.226] (EE) libinput bug: timer event9 tap: offset negative (-1061977)
[  7804.226] (EE) libinput bug: timer event9 tap: offset negative (-1059506)
[  7804.226] (EE) libinput bug: timer event9 tap: offset negative (-1024864)
[  7804.226] (EE) libinput bug: timer event9 tap: offset negative (-1017999)

My computer is : 
Model Asus R541U
RAM 4 GB
Kernel : 4.14.16
Distribution : Fedora
Desktop : KDE plasma : 5.11.5
Libinput version : 1.9.3

the impacted touchpad is : 
[    13.204] (II) Using input driver 'libinput' for 'ELAN1200:00 04F3:301A Touchpad'
[    13.204] (**) ELAN1200:00 04F3:301A Touchpad: always reports core events
[    13.204] (**) Option "Device" "/dev/input/event9"
[    13.204] (**) Option "_source" "server/udev"
[    13.313] (II) event9  - (II) ELAN1200:00 04F3:301A Touchpad: (II) is tagged by udev as: Touchpad
[    13.314] (II) event9  - (II) ELAN1200:00 04F3:301A Touchpad: (II) device is a touchpad
[    13.314] (II) event9  - (II) ELAN1200:00 04F3:301A Touchpad: (II) device removed
[    13.328] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-9/i2c-ELAN1200:00/0018:04F3:301A.0001/input/input10/event9"
[    13.328] (II) XINPUT: Adding extended input device "ELAN1200:00 04F3:301A Touchpad" (type: TOUCHPAD, id 12)
[    13.328] (**) Option "AccelerationScheme" "none"
[    13.328] (**) ELAN1200:00 04F3:301A Touchpad: (accel) selected scheme none/0
[    13.328] (**) ELAN1200:00 04F3:301A Touchpad: (accel) acceleration factor: 2.000
[    13.328] (**) ELAN1200:00 04F3:301A Touchpad: (accel) acceleration threshold: 4
[    13.331] (II) event9  - (II) ELAN1200:00 04F3:301A Touchpad: (II) is tagged by udev as: Touchpad
[    13.331] (II) event9  - (II) ELAN1200:00 04F3:301A Touchpad: (II) device is a touchpad

The command libinput-debug-events show nothing more the Xorg.0.log.
Comment 1 Peter Hutterer 2018-02-06 01:08:35 UTC
did you notice anything else behaving weirdly when resuming? usually the timer offset error is caused by X being overloaded and not calling libinput_dispatch() often enough. If you notice slow rendering and general delays during that time, then it's most likely not a libinput bug.
Comment 2 ad1rie3 2018-02-06 09:50:03 UTC
Youre right, high CPU of kworker process. 
Thanck you


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