[Wayland-bugs] [Bug 105222] RFE: keyboard debouncing

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105222

--- Comment #6 from Adam Dingle <adam at medovina.org> ---
Created attachment 137584
  --> https://bugs.freedesktop.org/attachment.cgi?id=137584&action=edit
output from evemu-record

OK - here is output from evemu-record.  While recording, I retyped the first
paragraph of my previous comment in a editor window twice.  The space bar
bounced four times while typing the paragraph the first time, and twice while
typing it the second time.

I ended up with this text:

===
Unfortunately even  with  key repeating completely disabled I'm  still  seeing
the double keystrokes.  I can easily capture them using either evemu-record or
libinput-debug-events.  The delay between a keystroke and its bounce seems to
fall in the range of approximately 0.02-0.10 sec.

Unfortunately even with key repeating completely disabled I'm still seeing the 
double keystrokes.  I can easily capture them using either evemu-record or
libinput-debug-events.   The delay between a keystroke and its bounce seems to
fall in the range of approximately 0.02-0.10 sec.
===

The bounces in the first paragraph are the double spaces after the words
"even", "with", "I'm" and "still".  The first bounce in the second paragraph is
the double space before the word "double".  The second is the triple space
preceding "The delay"; I actually pressed the space bar twice, but ended up
with three spaces.

It's not too hard to find these bounces in the evemu-record output.  For
example, in the first bounce in the first paragraph, the space bar fires at
10.735195 sec and then again at 10.773511, a difference of 0.038 sec.

In the second bounce, the space bar fires at 11.188439 and again at 11.235823,
a difference of 0.047 sec.

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