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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Handle abs ranges of [0, 0]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90107">90107</a>
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<th>Summary</th>
<td>Handle abs ranges of [0, 0]
</td>
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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>Other
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>libinput
</td>
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<th>Assignee</th>
<td>wayland-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>peter.hutterer@who-t.net
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<p>
<div>
<pre>Related to <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - "reject devices with a min == max axis range" causes my mouse to stop working"
href="show_bug.cgi?id=90090">Bug 90090</a> but let's keep that bug the device-specific one.
The kernel allows a min==max abs range provided the values are 0. This
essentially means "we don't know", an example for a fix for such a device is
here:
<a href="https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6f1891d01956cad406d2af8ed2e9cef6108bfc">https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6f1891d01956cad406d2af8ed2e9cef6108bfc</a>
libinput should deal with those devices, especially where it doesn't actually
use the axis anyway. In the above case of a touchscreen - we don't use pressure
so we can just ignore a bad setting.
For x/y and the MT axes we should always require a valid range.</pre>
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