I can not reproduce this on 58, I suspect it has been addressed.

->dpapad@ to confirm WontFix or address.

This seem like a search issue.

I can repro on a normal Chromebook by searching for "mouse" instead:
1. Open MD Settings
2. Search for "mouse"
3. In the results, click on Manage accessibility features
4. Click "Open mouse and touchpad device settings"

Expected: touchpad subpage opens
Actual: touchpad subpage does not open

Version: 58.0.3007.0 (Official Build) dev (64-bit)

I can repro this also on ToT. The problem appears to be related to the fact that 'mouse' is not listed on a touchpad device (or vice versa on a chromebox), so the search result is empty.

Looking...

@stevenjb: I am not able to reproduce (running ChromeOS on Linux), see attached screencast.

Deleted: search_touch.mp4 383 KB

	search_touch.mp4 383 KB View Download

@dpapad that's probably because you are showing that both a mouse and trackpad are present. Most Chromebooks only have one or the other, so the section won't be called "Mouse and Trackpad" and therefore won't match the search query (while the row in Accessibility is always "mouse and trackpad", so it always matches).

On Linux on CrOS you can visit chrome://device-emulator to set up fake input devices. Enable Touchpad and disable Mouse, then open Settings and search for Mouse... or vice versa.

Presumably, navigating to a different section should clear the search results.

I'll try disabling mouse shortly. Thanks.

> Presumably, navigating to a different section should clear the search results.
Search only filters out top-level <settings-section> elements. When navigating from a top-level result to a subpage, there should be nothing hidden in the subpage.

If we are navigating to a different <settings-section> then yes, the results should be cleared (and should be reflected in the URL too).

I've found the problem, and have a candidate fix.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e1a5f4de7e19dd33e3781609dd325fa715f354d2

commit e1a5f4de7e19dd33e3781609dd325fa715f354d2
Author: dpapad <dpapad@chromium.org>
Date: Thu Feb 23 00:30:37 2017

MD Settings: Manage a11y page, clear search param when navigating.

Navigating to a different page requires clearing the search parameter, so that
the page exits search mode. This is identical with what the settings-menu does
when navigating while in search mode.

BUG= 690620 
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2713553004
Cr-Commit-Position: refs/heads/master@{#452307}

[modify] https://crrev.com/e1a5f4de7e19dd33e3781609dd325fa715f354d2/chrome/browser/resources/settings/a11y_page/manage_a11y_page.js

9334.15.0 / 58.0.3029.19