如何将xwindows设置重置为默认值?

我最近试图通过VGA线将我的Ubuntu机插入电视。 我只是将其插入并重新启动,以查看Xwindows是否可以在没有任何调整的情况下处理它(它不能)。 这不是什么大问题,但似乎搞砸了。 我拔掉了电视插头并将显示器重新插入并重新启动,但现在我根本无法使用全屏Flash。 如果我拉出(例如)Youtubevideo并单击全屏按钮,屏幕会闪烁,然后返回到firefox,嵌入的video将消失并替换为棕褐色框。 我已经包含了从下面的终端运行firefox时得到的错误。

*** NSPlugin Viewer *** WARNING: unhandled variable 18 () in NPN_GetValue() *** NSPlugin Viewer *** WARNING: unhandled variable 18 () in NPN_GetValue() *** NSPlugin Viewer *** WARNING: unhandled variable 18 () in NPN_GetValue() *** NSPlugin Wrapper *** ERROR: NPP_Write() wait for reply: Connection reset by peer *** NSPlugin Wrapper *** WARNING:(/build/buildd/nspluginwrapper-1.2.2/src/npw-wrapper.c:2235):invoke_NPP_DestroyStream: assertion failed: (rpc_method_invoke_possible(plugin->connection)) *** NSPlugin Wrapper *** WARNING:(/build/buildd/nspluginwrapper-1.2.2/src/npw-wrapper.c:2119):invoke_NPP_URLNotify: assertion failed: (rpc_method_invoke_possible(plugin->connection)) *** NSPlugin Wrapper *** WARNING:(/build/buildd/nspluginwrapper-1.2.2/src/npw-wrapper.c:1923):invoke_NPP_SetWindow: assertion failed: (rpc_method_invoke_possible(plugin->connection)) *** NSPlugin Wrapper *** WARNING:(/build/buildd/nspluginwrapper-1.2.2/src/npw-wrapper.c:2533):invoke_NPP_HandleEvent: assertion failed: (rpc_method_invoke_possible(plugin->connection)) *** NSPlugin Wrapper *** ERROR: NPObject 0x7f61348a9890 is no longer valid! *** NSPlugin Wrapper *** ERROR: NPObject 0x7f61348a9890 is no longer valid! *** NSPlugin Wrapper *** ERROR: NPObject 0x7f61348a9890 is no longer valid! *** NSPlugin Wrapper *** ERROR: NPObject 0x7f61348a9890 is no longer valid! *** NSPlugin Wrapper *** ERROR: NPObject 0x7f61348a9890 is no longer valid! *** NSPlugin Wrapper *** ERROR: NPObject 0x7f61348a9890 is no longer valid! *** NSPlugin Wrapper *** ERROR: NPObject 0x7f61348a9890 is no longer valid! *** NSPlugin Wrapper *** ERROR: NPObject 0x7f61348a9890 is no longer valid! *** NSPlugin Wrapper *** ERROR: NPObject 0x7f61348a9890 is no longer valid! *** NSPlugin Wrapper *** ERROR: NPObject 0x7f61348a9890 is no longer valid! *** NSPlugin Wrapper *** WARNING:(/build/buildd/nspluginwrapper-1.2.2/src/npw-wrapper.c:2533):invoke_NPP_HandleEvent: assertion failed: (rpc_method_invoke_possible(plugin->connection)) *** NSPlugin Wrapper *** WARNING:(/build/buildd/nspluginwrapper-1.2.2/src/npw-wrapper.c:1854):invoke_NPP_Destroy: assertion failed: (rpc_method_invoke_possible(plugin->connection)) *** NSPlugin Wrapper *** ERROR: NPObject 0x7f6136861b60 is no longer valid! *** NSPlugin Wrapper *** WARNING:(/build/buildd/nspluginwrapper-1.2.2/src/npw-wrapper.c:1854):invoke_NPP_Destroy: assertion failed: (rpc_method_invoke_possible(plugin->connection)) *** NSPlugin Wrapper *** ERROR: NPObject 0x7f61348a9890 is no longer valid! 

有没有办法让我重新运行Ubuntu安装的X设置位来恢复我的orignal设置?

sudo apt-get purge xorg && sudo apt-get install xorg应该删除xorg及其所有配置文件并重新安装。