Linux下Wacom数位板相对定位画笔移动速度的设置
折腾
新买的Wacom CTL680，因为折腾驱动还换了几遍linux内核
具体驱动折腾过程就不说了，旧版内核害死人啊。
好不容易弄好驱动和数位板设置成相对定位模式之后（实在不习惯绝对定位）
发现xsetwacom貌似没有提供设置画笔移动速度的选项？
又是各种查资料
找到了如下设置办法：
首先找到画笔的ID
xsetwacom --list
Wacom Intuos P M Pen stylus id: 17 type: STYLUS
Wacom Intuos P M Pen eraser id: 18 type: ERASER
Wacom Intuos P M Pad pad id: 19 type: PAD
我这里的ID是17
然后xinput watch-props 17
输出：
Device 'Wacom Intuos P M Pen stylus':
Device Enabled (137): 1
Coordinate Transformation Matrix (139): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (261): 0
Device Accel Constant Deceleration (262): 1.000000
Device Accel Adaptive Deceleration (263): 1.000000
Device Accel Velocity Scaling (264): 10.000000
Device Node (257): "/dev/input/event15"
Wacom Tablet Area (637): 0, 0, 21600, 13500
Wacom Rotation (638): 0
Wacom Pressurecurve (639): 0, 0, 100, 100
Wacom Serial IDs (611): 803, 1, 0, 0, 0
Wacom Serial ID binding (612): 0
Wacom Pressure Threshold (613): 27
Wacom Sample and Suppress (614): 4, 4
Wacom Enable Touch (615): 0
Wacom Hover Click (640): 1
Wacom Enable Touch Gesture (616): 0
Wacom Touch Gesture Parameters (617): 0, 0, 250
Wacom Tool Type (399): "STYLUS" (395)
Wacom Button Actions (618): "Wacom button action 0" (619), "Wacom button action 1" (620), "Wacom button action 2" (621)
Wacom button action 0 (619): 1572865
Wacom button action 1 (620): 1572866
Wacom button action 2 (621): 1572867
Device Product ID (256): 1386, 803
Wacom Debug Levels (636): 0, 0
找到我们要设置的Device Accel Constant Deceleration后面括号里的数字
xinput set-prop 17 262 2.5
就搞定啦
后面的值(就是那个2.5)设置的越大笔移动速度就越慢