实用Totem播放出错

[Jeremy]

一打开Totem，就提示错误：
The video output is in use by another application. Please close other video applications, or select another video output in the Multimedia Systems Selector.

不知道有人遇见过没有，应该怎么解决呢？

[eexpress]

多媒体选择器。换换

[Jeremy]

试过的，不行，所以来问问。