我无法改变触控板的垂直/水平分辨率

我更改了50-synaptics.conf文件中的设置，如此主题中所述： 更改触摸板水平和垂直加速度/灵敏度？

我已经添加了：

 Option "VertResolution" "75" Option "HorizResolution" "75" 

尝试了不同的数字，但这对我来说似乎没有任何改变。 也许它没有使用synaptics驱动程序？ 使用Lenovo U31-70和16.04 LTS

编辑：按要求输出xinput ：

 ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ AlpsPS/2 ALPS GlidePoint id=12 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Video Bus id=7 [slave keyboard (3)] ↳ Power Button id=8 [slave keyboard (3)] ↳ Lenovo EasyCamera id=9 [slave keyboard (3)] ↳ Ideapad extra buttons id=10 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=11 [slave keyboard (3)] 

编辑2：输入xinput list-props 12 ：

 Device 'AlpsPS/2 ALPS GlidePoint': Device Enabled (140): 1 Coordinate Transformation Matrix (142): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000 Device Accel Profile (266): 1 Device Accel Constant Deceleration (267): 2.500000 Device Accel Adaptive Deceleration (268): 1.000000 Device Accel Velocity Scaling (269): 12.500000 Synaptics Edges (270): 614, 3481, 307, 1740 Synaptics Finger (271): 25, 30, 0 Synaptics Tap Time (272): 180 Synaptics Tap Move (273): 201 Synaptics Tap Durations (274): 180, 100, 100 Synaptics ClickPad (275): 1 Synaptics Middle Button Timeout (276): 0 Synaptics Two-Finger Pressure (277): 282 Synaptics Two-Finger Width (278): 7 Synaptics Scrolling Distance (279): -91, -91 Synaptics Edge Scrolling (280): 0, 0, 0 Synaptics Two-Finger Scrolling (281): 1, 1 Synaptics Move Speed (282): 1.000000, 1.750000, 0.043687, 0.000000 Synaptics Off (283): 2 Synaptics Locked Drags (284): 0 Synaptics Locked Drags Timeout (285): 5000 Synaptics Tap Action (286): 2, 3, 0, 0, 1, 3, 0 Synaptics Click Action (287): 1, 3, 0 Synaptics Circular Scrolling (288): 0 Synaptics Circular Scrolling Distance (289): 0.100000 Synaptics Circular Scrolling Trigger (290): 0 Synaptics Circular Pad (291): 0 Synaptics Palm Detection (292): 0 Synaptics Palm Dimensions (293): 10, 200 Synaptics Coasting Speed (294): 20.000000, 50.000000 Synaptics Pressure Motion (295): 30, 160 Synaptics Pressure Motion Factor (296): 1.000000, 1.000000 Synaptics Resolution Detect (297): 1 Synaptics Grab Event Device (298): 0 Synaptics Gestures (299): 1 Synaptics Capabilities (300): 1, 0, 0, 1, 1, 0, 0 Synaptics Pad Resolution (301): 1, 2 Synaptics Area (302): 0, 0, 0, 0 Synaptics Soft Button Areas (303): 2047, 0, 1678, 0, 0, 0, 0, 0 Synaptics Noise Cancellation (304): 22, 22 Device Product ID (261): 2, 8 Device Node (262): "/dev/input/event5"