Goodix触摸屏驱动程序Stylus与触摸屏共享id。

Question

我试图让触摸屏与活动笔支持在一个Netbook 1上工作。问题是，手写笔被检测到就像点击一样。它与触摸屏共享相同的id，所以当它在屏幕附近时，它的作用就像连续的点击。

xinput-list的输出是：

Virtual core pointer                        id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ HAILUCK CO.,LTD USB KEYBOARD Mouse        id=11   [slave  pointer  (2)]
⎜   ↳ Compx 2.4G Receiver Mouse                 id=16   [slave  pointer  (2)]
⎜   ↳ Compx 2.4G Receiver Consumer Control      id=17   [slave  pointer  (2)]
⎜   ↳ Goodix Capacitive TouchScreen             id=19   [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)]
    ↳ Sleep Button                              id=9    [slave  keyboard (3)]
    ↳ HAILUCK CO.,LTD USB KEYBOARD              id=10   [slave  keyboard (3)]
    ↳ HAILUCK CO.,LTD USB KEYBOARD System Control   id=12   [slave  keyboard (3)]
    ↳ HAILUCK CO.,LTD USB KEYBOARD Consumer Control id=13   [slave  keyboard

这个问题似乎已经用这个修改过的驱动程序：https://gitlab.com/AdyaAdya/goodix-touchscreen-linux-driver解决了。

但是，在遵循该链接的自述文件中的说明之后，驱动程序使手写笔完全停止工作，尽管触摸屏仍然工作。

加载修改后的驱动程序之前，dmesg | grep -i goodix的输出是：

[    4.771020] Goodix-TS i2c-GDIX1001:00: i2c-GDIX1001:00 supply AVDD28 not found, using dummy regulator
[    4.771041] Goodix-TS i2c-GDIX1001:00: i2c-GDIX1001:00 supply VDDIO not found, using dummy regulator
[    4.772795] Goodix-TS i2c-GDIX1001:00: ID 9111, version: 4020
[    4.790648] input: Goodix Capacitive TouchScreen as /devices/pci0000:00/0000:00:15.2/i2c_designware.2/i2c-3/i2c-GDIX1001:00/input/input16

跑步后

# rmmod goodix
# insmod goodix.ko

正如说明所述，dmesg | grep -i goodix给了我们：

[    4.771020] Goodix-TS i2c-GDIX1001:00: i2c-GDIX1001:00 supply AVDD28 not found, using dummy regulator
[    4.771041] Goodix-TS i2c-GDIX1001:00: i2c-GDIX1001:00 supply VDDIO not found, using dummy regulator
[    4.772795] Goodix-TS i2c-GDIX1001:00: ID 9111, version: 4020
[    4.790648] input: Goodix Capacitive TouchScreen as /devices/pci0000:00/0000:00:15.2/i2c_designware.2/i2c-3/i2c-GDIX1001:00/input/input16
[  711.634820] goodix: loading out-of-tree module taints kernel.
[  711.634976] goodix: module verification failed: signature and/or required key missing - tainting kernel
[  711.638265] Goodix-TS i2c-GDIX1001:00: i2c-GDIX1001:00 supply AVDD28 not found, using dummy regulator
[  711.638303] Goodix-TS i2c-GDIX1001:00: i2c-GDIX1001:00 supply VDDIO not found, using dummy regulator
[  711.641037] Goodix-TS i2c-GDIX1001:00: ID 9111, version: 4020
[  711.647527] input: Goodix Capacitive TouchScreen as /devices/pci0000:00/0000:00:15.2/i2c_designware.2/i2c-3/i2c-GDIX1001:00/input/input25
[  711.657476] input: Goodix Active Stylus Pen as /devices/pci0000:00/0000:00:15.2/i2c_designware.2/i2c-3/i2c-GDIX1001:00/input/input26

正如您所看到的，它现在提到了最后一行中的“活动堆栈笔”，但是手写笔不起作用。触摸屏还能用。手写笔仍未显示在xinput list上。

如果我误解了如何运用这些指示，我也不会感到惊讶。任何想法都将不胜感激。

Answer 1

根据这些输出，我怀疑问题来自于缺少libinput识别它为“平板设备”所需的手写笔的分辨率信息。

要了解更多关于我的意思，请参考专门针对这个问题的故障排除部分。

简单地说，如果您有这个问题，您需要像上面的链接所描述的那样向udev提供分辨率信息。

(我也回答了关于您发布的存储库问题)