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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Modifiers ignored when key report has modifiers and a keycode"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104254">104254</a>
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<th>Summary</th>
<td>Modifiers ignored when key report has modifiers and a keycode
</td>
</tr>
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<th>Product</th>
<td>Wayland
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>libinput
</td>
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<th>Assignee</th>
<td>wayland-bugs@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>alx741@riseup.net
</td>
</tr></table>
<p>
<div>
<pre>When a USB key report has a modifier + a key code, and such a modifier was not
previously reported, then the modifier gets ignored.
The issue does NOT occur in libinput 1.9.2, only since version 1.9.3
e.g.
Key report with modifiers: 00000010 (Left shift) and keycode 0x04 (a)
Expected: "A" (uppercase/shifted letter A)
Obtained: "a" (lowercase letter a) - Left shift modifier gets ignored
This doesn't occur for all modifiers and all combination of letters. For
instance a pre-shifted "b" does output a "B" as expected, but fails for "d",
"e", etc.
This will hardly occur under normal conditions of course, the issue arises when
using a keyboard that attempts to send "pre-shifted" keys to allow symbols
typing on a single keystroke (without holding shift).</pre>
</div>
</p>
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