Fixed the problem of no sound for videos such as wmv played in ubuntu. mplayer or SMplayer1.1 reason: it is very likely that you do not install w32codes1.2 solution :( 1) download w32codesofficial site all-20110131.tar.bz2 or: essential-20071007.tar.bz2 of course you can also go to ghost (2) install the Binary Codec Packages which is w32codes. decompress the codec package. dll. put all files such as ax in/usr/lib/win32. 2. totem-cause of player 2.1 in the system: this problem is because the decoder of linux ubuntu does not support the audio encoding format of wmv9 or above, so we need to install a third-party decoder. 2.2 solution: find a solution on the Internet and find that you only need to download the Gstreamer decoder developed by Fluendo in Linux, including x86 and x64 architectures. In this way, you can use totem in Ubuntu to smoothly play videos in various windows.