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josephg
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Joined: 10 Jan 2016
Posts: 783
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 Posted: Sun Sep 23, 2018 2:22 am Post subject: kernel bug: Touch jump detected and discarded [solved] |
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So now that I've become a bit more observant looking for kernel bugs, I found something in my Xorg.0.log the tail end of which is below
| Code: | [ 41.366] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad (/dev/input/event7)
[ 41.366] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "libinput touchpad catchall"
[ 41.366] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "libinput touchpad catchall"
[ 41.366] (II) Using input driver 'libinput' for 'SynPS/2 Synaptics TouchPad'
[ 41.366] (**) SynPS/2 Synaptics TouchPad: always reports core events
[ 41.366] (**) Option "Device" "/dev/input/event7"
[ 41.366] (**) Option "_source" "server/udev"
[ 41.367] (II) event7 - SynPS/2 Synaptics TouchPad: is tagged by udev as: Touchpad
[ 41.367] (II) event7 - SynPS/2 Synaptics TouchPad: device is a touchpad
[ 41.368] (II) event7 - SynPS/2 Synaptics TouchPad: device removed
[ 41.383] (**) Option "Tapping" "On"
[ 41.383] (**) Option "config_info" "udev:/sys/devices/platform/i8042/serio1/input/input6/event7"
[ 41.383] (II) XINPUT: Adding extended input device "SynPS/2 Synaptics TouchPad" (type: TOUCHPAD, id 10)
[ 41.384] (**) Option "AccelerationScheme" "none"
[ 41.384] (**) SynPS/2 Synaptics TouchPad: (accel) selected scheme none/0
[ 41.384] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration factor: 2.000
[ 41.384] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration threshold: 4
[ 41.385] (II) event7 - SynPS/2 Synaptics TouchPad: is tagged by udev as: Touchpad
[ 41.385] (II) event7 - SynPS/2 Synaptics TouchPad: device is a touchpad
[ 41.386] (II) config/udev: Adding input device PC Speaker (/dev/input/event3)
[ 41.386] (II) No input driver specified, ignoring this device.
[ 41.386] (II) This device may have been added with another device file.
[ 193.069] (II) Axis 0 value 5734 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 2133.682] (EE) event7 - SynPS/2 Synaptics TouchPad: kernel bug: Touch jump detected and discarded.
See https://wayland.freedesktop.org/libinput/doc/1.10.7/touchpad_jumping_cursor.html for details
[ 3213.553] (II) Axis 0 value 5735 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 6213.716] (II) Axis 0 value 5725 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 9213.756] (II) Axis 0 value 5695 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 11609.810] (EE) event7 - SynPS/2 Synaptics TouchPad: kernel bug: Touch jump detected and discarded.
See https://wayland.freedesktop.org/libinput/doc/1.10.7/touchpad_jumping_cursor.html for details
[ 12259.200] (II) Axis 0x1 value 4604 is outside expected range [1255, 4600]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 15272.829] (II) Axis 0 value 5673 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 18285.236] (II) Axis 0 value 5688 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 21313.200] (II) Axis 0 value 5735 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 24376.036] (II) Axis 0 value 5676 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 27376.140] (II) Axis 0 value 5709 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 30414.141] (II) Axis 0 value 5735 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 33417.816] (II) Axis 0 value 5690 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 36667.483] (II) Axis 0 value 5734 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 39744.539] (II) Axis 0 value 5734 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 42766.209] (II) Axis 0 value 5734 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 45778.755] (II) Axis 0 value 5694 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 48278.438] (EE) event7 - SynPS/2 Synaptics TouchPad: kernel bug: Touch jump detected and discarded.
See https://wayland.freedesktop.org/libinput/doc/1.10.7/touchpad_jumping_cursor.html for details
[ 48784.856] (II) Axis 0 value 5735 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 51784.872] (II) Axis 0 value 5703 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 54811.682] (II) Axis 0 value 5734 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 58230.760] (II) Axis 0 value 5682 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 61261.452] (II) Axis 0 value 5723 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 61272.861] (EE) event7 - SynPS/2 Synaptics TouchPad: kernel bug: Touch jump detected and discarded.
See https://wayland.freedesktop.org/libinput/doc/1.10.7/touchpad_jumping_cursor.html for details
[ 64422.113] (II) Axis 0 value 5709 is outside expected range [1271, 5672]
See https://wayland.freedesktop.org/libinput/doc/1.10.7//absolute_coordinate_ranges.html for details
[ 66573.529] (EE) event7 - SynPS/2 Synaptics TouchPad: kernel bug: Touch jump detected and discarded.
See https://wayland.freedesktop.org/libinput/doc/1.10.7/touchpad_jumping_cursor.html for details |
I don't know what to make of these. My touchpad seems to be working fine since the last reboot, and I haven't noticed any issues. I don't think I have changed or specified any coordinates anywhere. But that mention of kernel bug makes me a bit jumpy.
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"Growth for the sake of growth is the ideology of the cancer cell." Edward Abbey
Last edited by josephg on Tue Sep 25, 2018 10:43 am; edited 1 time in total |
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josephg
l33t
Joined: 10 Jan 2016
Posts: 783
Location: usually offline
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| Posted: Tue Sep 25, 2018 10:42 am Post subject: |
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i changed libinput to evdev in /etc/portage/make.conf, and all issues seem to have disappeared.
| Code: | | INPUT_DEVICES="evdev synaptics" |
no more kernel bug about touch jump, and i don't think my touchpad is multitouch.
my ranges are correctly identified as well.
so much trying to keep up with bleeding edge  i think i'm quite happy to trail behind, and rather be stable. |
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khayyam
Watchman
Joined: 07 Jun 2012
Posts: 6227
Location: Room 101
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| Posted: Tue Sep 25, 2018 1:01 pm Post subject: |
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| josephg wrote: | | so much trying to keep up with bleeding edge :( i think i'm quite happy to trail behind, and rather be stable. |
josephg ... it's not considered bleeding edge upstream ("this driver can be used as as drop-in replacement for evdev and synaptics") ... it's the new broken.
best ... khay |
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josephg
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Joined: 10 Jan 2016
Posts: 783
Location: usually offline
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| Posted: Wed Sep 26, 2018 12:20 am Post subject: |
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I thought Gentoo changed from evdev/synaptics to libinput sometime ago.
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