Comment 0 for bug 1766491

[Machine]
Dell Vostro 3900
  [Version]
18.04 daily 20180421
kylin-video_1.1.6-0ubuntu1
  [Details]
[Kylin Display Switch]kylin_display_switch.py crashed
切换用户时的报错：kylin_display_switch.py crashed with PermissionError in check_singleton():[Errno 13]权限不够:/tmp/instance_kds.lock';
测试过程中遇到的报错：kylin_display_switch.py crashed with TypeError in slot_tip_numlock():'>' not supported between instances of 'bultin_function_or_method' and 'int'
  [Test Case]
1. testing
2. Switch User
Expected Result:Passed
Actual Result:
1. kylin_display_switch.py crashed with TypeError
2. kylin_display_switch.py crashed with PermissionError