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Android adb 设备连接后按键失灵

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Android adb 设备连接后按键失灵

我的一台运行 Ubuntu 16.04 的机器出现了问题。

重现问题的步骤：

  1. 通过 USB 连接 Android 设备
  2. 运行“adb 设备”
  3. 开始输入

按键开始出现故障，就像我按住了某个键，但实际上我已经完全移开了手。只有断开 Android 设备的 USB 连接才能解决此问题。

我试过多个 Android 设备，它们都存在同样的问题。我还有几位同事的 PC 硬件设置完全相同，但他们没有遇到这个问题。有人能建议我如何调试这个问题以查看问题出在哪里吗？

编辑：

evtest 日志（按下“k”之前插入的设备）：

Event: time 1498086624.661268, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70028
Event: time 1498086624.661268, type 1 (EV_KEY), code 28 (KEY_ENTER), value 0
Event: time 1498086624.661268, -------------- SYN_REPORT ------------
Event: time 1498086627.085272, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70009
Event: time 1498086627.085272, type 1 (EV_KEY), code 33 (KEY_F), value 1
Event: time 1498086627.085272, -------------- SYN_REPORT ------------
fEvent: time 1498086627.141262, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70009
Event: time 1498086627.141262, type 1 (EV_KEY), code 33 (KEY_F), value 0
Event: time 1498086627.141262, -------------- SYN_REPORT ------------
Event: time 1498086634.805269, type 4 (EV_MSC), code 4 (MSC_SCAN), value 7000a
Event: time 1498086634.805269, type 1 (EV_KEY), code 34 (KEY_G), value 1
Event: time 1498086634.805269, -------------- SYN_REPORT ------------
gEvent: time 1498086634.869271, type 4 (EV_MSC), code 4 (MSC_SCAN), value 7000a
Event: time 1498086634.869271, type 1 (EV_KEY), code 34 (KEY_G), value 0
Event: time 1498086634.869271, -------------- SYN_REPORT ------------
Event: time 1498086646.165257, type 4 (EV_MSC), code 4 (MSC_SCAN), value 7000e
Event: time 1498086646.165257, type 1 (EV_KEY), code 37 (KEY_K), value 1
Event: time 1498086646.165257, -------------- SYN_REPORT ------------
kEvent: time 1498086646.415080, type 1 (EV_KEY), code 37 (KEY_K), value 2
Event: time 1498086646.415080, -------------- SYN_REPORT ------------
Event: time 1498086646.451088, type 1 (EV_KEY), code 37 (KEY_K), value 2
Event: time 1498086646.451088, -------------- SYN_REPORT ------------
Event: time 1498086646.487099, type 1 (EV_KEY), code 37 (KEY_K), value 2
Event: time 1498086646.487099, -------------- SYN_REPORT ------------
Event: time 1498086646.523132, type 1 (EV_KEY), code 37 (KEY_K), value 2
Event: time 1498086646.523132, -------------- SYN_REPORT ------------
Event: time 1498086646.559089, type 1 (EV_KEY), code 37 (KEY_K), value 2
Event: time 1498086646.559089, -------------- SYN_REPORT ------------
Event: time 1498086646.595088, type 1 (EV_KEY), code 37 (KEY_K), value 2

答案1

我找到了问题所在。我有一个有源 4 端口 USB 集线器，我的键盘插在上面这一。当我将键盘直接连接到 PC 时，问题就消失了。

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