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<base href="https://bugs.freedesktop.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Extra keypresses and long lags before mouse moves"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105872">105872</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Extra keypresses and long lags before mouse moves
</td>
</tr>
<tr>
<th>Product</th>
<td>Wayland
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>critical
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>libinput
</td>
</tr>
<tr>
<th>Assignee</th>
<td>wayland-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>paulie4@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>I'm on Arch Linux using libinput version 1.10.3.
The mouse/alt-tab sometimes has a long lag before registering the move/alt-tab
keypress, and sometimes there are extra keypresses registered, when I've only
pressed a key a single time. I don't know the exact number, but I'm pretty sure
I've been typing a word and a letter that should have been a single character
gets turned into about 6 repeated characters. The worst is when extra CTRL-d's
or extra Escape keys are sent, and multiple things close, when I only meant to
close one. There's usually a lag before the keypresses are registered in Gnome.
Unfortunately, I do not know how to consistently reproduce it, but it seems to
usually only happen after the mouse cursor has disappeared when typing, since
the cursor does not always hide when I'm typing. Also, when it's in the bad
state, when I press CTRL-Backspace, it only does one backspace, but if I press
CTRL-PageUp/Down, it repeats the PageUp/Down more than once.
This is some debug output where I pressed "sdf", waited a little while (which
produced a "event13 - palm: keyboard timeout" debug message), then pressed CTRL
and PAGEUP on time, but two PAGEUP presses were registered in Gnome, which is
why I had to press CTRL-PAGEDOWN twice to go back to my original tab in
Terminal.
$ sudo libinput debug-events --verbose
event2 - Power Button: is tagged by udev as: Keyboard
event2 - Power Button: device is a keyboard
event4 - Asus Wireless Radio Control: is tagged by udev as: Keyboard
event4 - Asus Wireless Radio Control: device is a keyboard
event9 - Video Bus: is tagged by udev as: Keyboard
event9 - Video Bus: device is a keyboard
event8 - Video Bus: is tagged by udev as: Keyboard
event8 - Video Bus: device is a keyboard
event0 - Lid Switch: is tagged by udev as: Switch
event0 - Lid Switch: device is a switch device
event1 - Sleep Button: is tagged by udev as: Keyboard
event1 - Sleep Button: device is a keyboard
event7 - ASUS USB2.0 Webcam: ASUS USB2.0: is tagged by udev as: Keyboard
event7 - ASUS USB2.0 Webcam: ASUS USB2.0: device is a keyboard
event10 - HDA Digital PCBeep: not tagged as supported input device
event10 - not using input device '/dev/input/event10'
event11 - HDA Intel PCH Mic: is tagged by udev as: Switch
event12 - HDA Intel PCH Headphone: is tagged by udev as: Switch
event6 - Asus WMI hotkeys: is tagged by udev as: Keyboard
event6 - Asus WMI hotkeys: device is a keyboard
event3 - AT Translated Set 2 keyboard: is tagged by udev as: Keyboard
event3 - AT Translated Set 2 keyboard: device is a keyboard
event0 - lid: keyboard paired with Lid Switch<->AT Translated Set 2 keyboard
event13 - ETPS/2 Elantech Touchpad: is tagged by udev as: Touchpad
event13 - using pressure-based touch detection (8:10)
event13 - palm: pressure threshold is 130
event13 - thumb: enabled thumb detection (+pressure)
event13 - ETPS/2 Elantech Touchpad: device is a touchpad
event13 - lid_switch: activated for ETPS/2 Elantech Touchpad<->Lid Switch
event13 - palm: dwt activated with ETPS/2 Elantech Touchpad<->AT Translated Set
2 keyboard
event5 - PC Speaker: not tagged as supported input device
event5 - not using input device '/dev/input/event5'
-event2 DEVICE_ADDED Power Button seat0 default
group1 cap:k
-event4 DEVICE_ADDED Asus Wireless Radio Control seat0 default
group2 cap:k
-event9 DEVICE_ADDED Video Bus seat0 default
group3 cap:k
-event8 DEVICE_ADDED Video Bus seat0 default
group3 cap:k
-event0 DEVICE_ADDED Lid Switch seat0 default
group4 cap:S
-event1 DEVICE_ADDED Sleep Button seat0 default
group5 cap:k
-event7 DEVICE_ADDED ASUS USB2.0 Webcam: ASUS USB2.0 seat0 default
group6 cap:k
-event11 DEVICE_ADDED HDA Intel PCH Mic seat0 default
group7 cap:
-event12 DEVICE_ADDED HDA Intel PCH Headphone seat0 default
group7 cap:
-event6 DEVICE_ADDED Asus WMI hotkeys seat0 default
group8 cap:k
-event3 DEVICE_ADDED AT Translated Set 2 keyboard seat0 default
group9 cap:k
-event13 DEVICE_ADDED ETPS/2 Elantech Touchpad seat0 default
group10 cap:pg size 110x66mm tap(dl off) left scroll-nat scroll-2fg-edge
click-buttonareas-clickfinger dwt-on
-event3 KEYBOARD_KEY +1.94s *** (-1) pressed
s event3 KEYBOARD_KEY +1.98s *** (-1) pressed
d event3 KEYBOARD_KEY +2.04s *** (-1) pressed
f event3 KEYBOARD_KEY +2.09s *** (-1) released
event3 KEYBOARD_KEY +2.13s *** (-1) released
event3 KEYBOARD_KEY +2.16s *** (-1) released
event13 - palm: keyboard timeout
event3 KEYBOARD_KEY +4.65s *** (-1) pressed
event3 KEYBOARD_KEY +6.74s KEY_PAGEUP (104) pressed
event3 KEYBOARD_KEY +6.81s KEY_PAGEUP (104) released
event3 KEYBOARD_KEY +7.81s *** (-1) released
event3 KEYBOARD_KEY +12.62s *** (-1) pressed
event3 KEYBOARD_KEY +12.78s KEY_PAGEDOWN (109) pressed
event3 KEYBOARD_KEY +12.87s KEY_PAGEDOWN (109) released
event3 KEYBOARD_KEY +13.00s KEY_PAGEDOWN (109) pressed
event3 KEYBOARD_KEY +13.08s KEY_PAGEDOWN (109) released
event3 KEYBOARD_KEY +13.20s *** (-1) released
event3 KEYBOARD_KEY +14.99s *** (-1) pressed
event3 KEYBOARD_KEY +15.13s *** (-1) pressed
^C
event2 - Power Button: device removed
event4 - Asus Wireless Radio Control: device removed
event9 - Video Bus: device removed
event8 - Video Bus: device removed
event0 - Lid Switch: device removed
event1 - Sleep Button: device removed
event7 - ASUS USB2.0 Webcam: ASUS USB2.0: device removed
event11 - HDA Intel PCH Mic: device removed
event12 - HDA Intel PCH Headphone: device removed
event6 - Asus WMI hotkeys: device removed
event3 - AT Translated Set 2 keyboard: device removed
event13 - ETPS/2 Elantech Touchpad: device removed
Unfortunately, the output looks the same when it's in a bad state versus when
it's in a working state. This debug output shows two instances where it was in
a bad state (with the double page downs to get back to the same tab), and then
shows a good state, but I don't see any differences between the three of them.
### The top and bottom parts are identical, so only sending the middle
-event3 KEYBOARD_KEY +4.55s *** (-1) pressed
s event3 KEYBOARD_KEY +4.56s *** (-1) pressed
d event3 KEYBOARD_KEY +4.62s *** (-1) pressed
f event3 KEYBOARD_KEY +4.67s *** (-1) released
event3 KEYBOARD_KEY +4.71s *** (-1) released
event3 KEYBOARD_KEY +4.74s *** (-1) released
event13 - palm: keyboard timeout
event3 KEYBOARD_KEY +6.35s *** (-1) pressed
event3 KEYBOARD_KEY +7.41s KEY_PAGEUP (104) pressed
event3 KEYBOARD_KEY +7.47s KEY_PAGEUP (104) released
event3 KEYBOARD_KEY +8.87s KEY_PAGEDOWN (109) pressed
event3 KEYBOARD_KEY +8.97s KEY_PAGEDOWN (109) released
event3 KEYBOARD_KEY +9.12s KEY_PAGEDOWN (109) pressed
event3 KEYBOARD_KEY +9.23s KEY_PAGEDOWN (109) released
event3 KEYBOARD_KEY +9.40s *** (-1) released
event3 KEYBOARD_KEY +12.16s *** (-1) pressed
s event3 KEYBOARD_KEY +12.19s *** (-1) pressed
d event3 KEYBOARD_KEY +12.23s *** (-1) pressed
f event3 KEYBOARD_KEY +12.29s *** (-1) released
event3 KEYBOARD_KEY +12.31s *** (-1) released
event3 KEYBOARD_KEY +12.35s *** (-1) released
event13 - palm: keyboard timeout
event3 KEYBOARD_KEY +14.53s *** (-1) pressed
event3 KEYBOARD_KEY +14.81s KEY_PAGEUP (104) pressed
event3 KEYBOARD_KEY +14.90s KEY_PAGEUP (104) released
event3 KEYBOARD_KEY +15.79s KEY_PAGEDOWN (109) pressed
event3 KEYBOARD_KEY +15.88s KEY_PAGEDOWN (109) released
event3 KEYBOARD_KEY +16.11s KEY_PAGEDOWN (109) pressed
event3 KEYBOARD_KEY +16.22s KEY_PAGEDOWN (109) released
event3 KEYBOARD_KEY +16.34s *** (-1) released
event3 KEYBOARD_KEY +18.36s *** (-1) pressed
s event3 KEYBOARD_KEY +18.41s *** (-1) pressed
d event3 KEYBOARD_KEY +18.44s *** (-1) pressed
f event3 KEYBOARD_KEY +18.51s *** (-1) released
event3 KEYBOARD_KEY +18.54s *** (-1) released
event3 KEYBOARD_KEY +18.56s *** (-1) released
event13 - palm: keyboard timeout
event3 KEYBOARD_KEY +20.19s *** (-1) pressed
event3 KEYBOARD_KEY +20.40s KEY_PAGEUP (104) pressed
event3 KEYBOARD_KEY +20.49s KEY_PAGEUP (104) released
event3 KEYBOARD_KEY +20.85s KEY_PAGEDOWN (109) pressed
event3 KEYBOARD_KEY +20.95s KEY_PAGEDOWN (109) released
event3 KEYBOARD_KEY +21.25s *** (-1) released
event3 KEYBOARD_KEY +22.82s *** (-1) pressed
event3 KEYBOARD_KEY +22.94s *** (-1) pressed</pre>
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