I have already solved it ... I have installed alsa-tools-gui and I have been able to analyze the problem better. Apparently for some reason after the installation leaves the speakers deactivated, using this tool I have been able to see this problem and I have activated ... I don't know very well what it does since it does not touch the alsa conf but I can already hear the speakers internal The headphones still work as before.
Executed the command.
I have already solved it ... I have installed alsa-tools-gui and I have been able to analyze the problem better. Apparently for some reason after the installation leaves the speakers deactivated, using this tool I have been able to see this problem and I have activated ... I don't know very well what it does since it does not touch the alsa conf but I can already hear the speakers internal The headphones still work as before.