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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 - Unusable pressure values on ETPS/2 Elantech Touchpad"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100463">100463</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Unusable pressure values on ETPS/2 Elantech Touchpad
</td>
</tr>
<tr>
<th>Product</th>
<td>Wayland
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
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<th>Component</th>
<td>libinput
</td>
</tr>
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<th>Assignee</th>
<td>wayland-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>aleksey.vasilenko@gmail.com
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=130560" name="attach_130560" title="evemu.log">attachment 130560</a> <a href="attachment.cgi?id=130560&action=edit" title="evemu.log">[details]</a></span>
evemu.log
After 1.7 update my Elantech touchpad on Asus UX301LA became unusable. After
this changes things get back to normal:
diff --git a/src/evdev-mt-touchpad.c b/src/evdev-mt-touchpad.c
index 674cf1c..7daa0f2 100644
--- a/src/evdev-mt-touchpad.c
+++ b/src/evdev-mt-touchpad.c
@@ -2388,8 +2388,8 @@ tp_init_pressure(struct tp_dispatch *tp,
range = abs->maximum - abs->minimum;
if (device->model_flags & EVDEV_MODEL_ELANTECH_TOUCHPAD) {
- tp->pressure.high = 24;
- tp->pressure.low = 10;
+ tp->pressure.high = 10;
+ tp->pressure.low = 8;
} else if (device->model_flags & EVDEV_MODEL_CYAPA) {
tp->pressure.high = 10;
tp->pressure.low = 8;
evemu device info attached, here is udevadm output:
udevadm info /sys/class/input/event13
P: /devices/platform/i8042/serio4/input/input16/event13
N: input/event13
E: DEVNAME=/dev/input/event13
E: DEVPATH=/devices/platform/i8042/serio4/input/input16/event13
E: ID_BUS=i8042
E: ID_INPUT=1
E: ID_INPUT_HEIGHT_MM=60
E: ID_INPUT_TOUCHPAD=1
E: ID_INPUT_TOUCHPAD_INTEGRATION=internal
E: ID_INPUT_WIDTH_MM=92
E: LIBINPUT_ATTR_RESOLUTION_HINT=31x31
E: LIBINPUT_DEVICE_GROUP=11/2/e/0:isa0060/serio4
E: LIBINPUT_MODEL_ELANTECH_TOUCHPAD=1
E: MAJOR=13
E: MINOR=77
E: SUBSYSTEM=input
E: USEC_INITIALIZED=2814847</pre>
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