Lubuntu 14.04没声音，无法安装pulseaudio
我有两台PC已经安装了LUbuntu 14.04。 在一个声音很好并且在OS安装期间安装了pulseaudio。 另一方面，pulseaudio丢失，根本没有声音，不是来自音频插孔，也不是来自HDMI。 当输入sudo apt-get install pulseaudio我收到此错误：
Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: pulseaudio : Depends: libpulse0 (= 1:4.0-0ubuntu11) but 1:4.0-0ubuntu11.1 is to be installed Recommends: pulseaudio-module-x11 but it is not going to be installed Recommends: gstreamer0.10-pulseaudio but it is not going to be installed Recommends: rtkit but it is not going to be installed E: Unable to correct problems, you have held broken packages.
您尝试从trusty存储库安装pulseaudio (1:4.0-0ubuntu11) 。 但是您已启用trusty-updates ，因此将libpulse0 (1:4.0-0ubuntu11.1) 。
唯一的解释是你忘了启动命令
sudo apt-get update
之后
sudo apt-get install --reinstall pulseaudio
并升级整个系统
sudo apt-get dist-upgrade
试试这个：
sudo apt-get remove libpulse0 sudo apt-get autoremove
然后尝试安装pulseaudio
sudo apt-get install pulseaudio
我有同样的问题，但这对我有帮助。