终于确定下来,是QWS_MOUSE_PROTO 设置 的问题.
可以参照以下,作尝试
export QWS_MOUSE_PROTO=<driver>:<device>The available drivers are MouseMan, IntelliMouse, Microsoft, VR41xx, LinuxTP or Tslib, and the device is typically /dev/mouse, or /dev/ts for touch panels. Note that specifying the device is optional
但我没有尝试,我把QWS_MOUSE_PROTO注释掉,程序就跑起来正常了.