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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED WONTFIX - Set "Tapping Enabled" by default for "Logitech Rechargeable Touchpad T650""
href="https://bugs.freedesktop.org/show_bug.cgi?id=100021#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED WONTFIX - Set "Tapping Enabled" by default for "Logitech Rechargeable Touchpad T650""
href="https://bugs.freedesktop.org/show_bug.cgi?id=100021">bug 100021</a>
from <span class="vcard"><a class="email" href="mailto:peter@lekensteyn.nl" title="Peter Wu <peter@lekensteyn.nl>"> <span class="fn">Peter Wu</span></a>
</span></b>
<pre>(In reply to Peter Hutterer from <a href="show_bug.cgi?id=100021#c2">comment #2</a>)
<span class="quote">> (In reply to Peter Wu from <a href="show_bug.cgi?id=100021#c0">comment #0</a>)
> > According to [1], tapping is disabled by default because of buggy devices.
>
> That's not true, please read the description again.</span >
Maybe I should have phrased it as "because users may experience it as buggy"
because that is what I infer from the first point.
<span class="quote">> > The Logitech T650 however is an external touchpad for which tapping is an
> > essential feature that should be enabled by default (there are physical
> > buttons hidden under the device, but this requires more pressure to trigger).
>
> fwiw, that's true for any clickpad. The touchpad has physical buttons, so we
> will leave tapping disabled.</span >
The T650 is not like a laptop clickpad, the buttons are not visible. See
<a href="http://support.logitech.com/en_us/product/touchpad-t650">http://support.logitech.com/en_us/product/touchpad-t650</a>
<a href="https://ic.tweakimg.net/ext/i/1349867977.jpeg">https://ic.tweakimg.net/ext/i/1349867977.jpeg</a>
(it looks more like the Apple Trackpad which also has no buttons)
<span class="quote">> Note that the default libinput picks is mostly
> irrelevant, this is a config option and any process that uses libinput can
> change the setting when it gets the device added notification. That's what
> GNOME already does when the tapping is enabled in gsettings, other desktop
> environments (can) do the same.
>
> Sorry, closing this as wontfix, changing the default of a low-level library
> doesn't make sense here.</span >
Please reconsider, this is not just a preference, it is essential that this
feature is enabled by default. Older firmware versions relied on the
(Windows/macOS) driver to do this but since Linux did not have a proper driver,
Logitech released firmware that provided this tap-to-click functionality. But
with the raw mode in kernel 3.19, this was broken again (but users can
workaround with disable_raw_mode=1).
There is no situation where someone with this device does not want the
tap-to-click functionality. While higher layers can try to fix the bad decision
made by the lower library, I believe it is the low-level library task to
provide a sane default while higher-level users must only have to change this
in exceptional cases.</pre>
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