Differences

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--- ubuntu:mouse:change_mouse_sensitivity [2021/10/26 10:11] – peter
+++ ubuntu:mouse:change_mouse_sensitivity [2021/10/26 10:50] (current) – peter
@@ Line 86: / Line 86: @@
 xinput --set-prop "Razer DeathAdder" "Device Accel Profile" -1
 </code>
 ----
-==== Using xset ====
+===== Confirm any changes =====
+<code bash>
+xinput --list-props 8
+</code>
+<WRAP info>
+**NOTE:** The 8 is the device-id per [[Ubuntu:Mouse:Determine the Mouse|Determine the Mouse]].
+</WRAP>
+----
+===== Using xset to change acceleration =====
+xset can also be used to change acceleration.
 <WRAP info>
@@ Line 95: / Line 110: @@
 </WRAP>
+----
-To get the current values, use:
+==== Get the current xset values ====
 <code bash>
@@ Line 108: / Line 124: @@
   acceleration:  2/1    threshold:  4
 </code>
+<WRAP info>
+**NOTE:**
+  * **acceleration** defines how many times faster the cursor will move than the default speed.
+    * acceleration can be a fraction.
+    * To slow down the mouse, use 1/2, 1/3, 1/4, ...
+    * To make it faster, use 2/1, 3/1, 4/1, ...
+  * **threshold** is the velocity required for acceleration to become effective, usually measured in device units per 10ms.
+    * Threshold defines the point at which acceleration should occur in pixels per 10 ms.
+    * If threshold is zero, then acceleration is treated as "the exponent of a more natural and continuous formula.".
+      * This gives precise control for slow motion but big reach for fast motion, and a progressive transition for motions in between.
+</WRAP>
 ----
-To set new values:
+==== Set new values ====
 <code bash>
@@ Line 117: / Line 148: @@
 </code>
-where acceleration defines how many times faster the cursor will move than the default speed. threshold is the velocity required for acceleration to become effective, usually measured in device units per 10ms. acceleration can be a fraction, so if you want to slow down the mouse you can use 1/2, 1/3, 1/4, ... if you want to make it faster you can use 2/1, 3/1, 4/1, ...
+<WRAP info>
+**NOTE:**
-Threshold defines the point at which acceleration should occur in pixels per 10 ms. If threshold is zero, e.g. if you use:
+  * **acceleration** defines how many times faster the cursor will move than the default speed.
+    * acceleration can be a fraction.
+    * To slow down the mouse, use 1/2, 1/3, 1/4, ...
+    * To make it faster, use 2/1, 3/1, 4/1, ...
-<code bash>
+  * **threshold** is the velocity required for acceleration to become effective, usually measured in device units per 10ms.
+    * Threshold defines the point at which acceleration should occur in pixels per 10 ms.
+    * If threshold is zero, then acceleration is treated as "the exponent of a more natural and continuous formula.".
+      * This gives precise control for slow motion but big reach for fast motion, and a progressive transition for motions in between.
+      * Recommended acceleration value in this case is 3/2 to 2, but not limited to that range. <code bash>
 xset m 3/2 0
 </code>
-as suggested in the man page, then acceleration is treated as "the exponent of a more natural and continuous formula."
+</WRAP>
-To get the default settings back:
-$ xset m default
+To reduce mouse acceleration
+<code bash>
+xset mouse 1 1
+</code>
+To increase the mouse speed
+<code bash>
+xset mouse 10 1
+</code>
 ----
+==== Reset xset to the default settings ====
+<code bash>
+xset m default
+</code>
+----
-===== Confirm any changes =====
+===== Save the New Setting Permanently =====
-<code bash>
+Add a new file in **/usr/share/X11/xorg.conf.d/**.
-xinput --list-props 8
-</code>
+For example, /usr/share/X11/xorg.conf.d/60-razer-deathadder-v2.conf
+<file bash /usr/share/X11/xorg.conf.d/60-razer-deathadder-v2.conf>
+Section "InputClass"
+   Identifier      "Razer Deathadder v2"
+   MatchProduct    "Razer Razer DeathAdder V2"
+   Option          "ConstantDeceleration" "3"
+   Option          "ButtonMapping" "1 0 3 4 5 6 7 8 9"
+EndSection
+</file>
 <WRAP info>
-**NOTE:** The 8 is the device-id per [[Ubuntu:Mouse:Determine the Mouse|Determine the Mouse]].
+**NOTE:**
+  * The filename can be anything similar.
+  * **Identifier**:  Can be anything.
+  * **MatchProduct**:  Product name from xinput list.
+  * **Option**:  The options to change.
 </WRAP>
 ----
@@ Line 155: / Line 223: @@
 https://wiki.archlinux.org/title/Mouse_acceleration
+https://newbedev.com/decrease-mouse-sensitivity-below-the-standard-limit