Answer to comment 51: I am not sure what you want? I did following: eduard@linux-m4mf:~> more /sys/module/snd_hda_intel/parameters/power_save_controller N eduard@linux-m4mf:~> more /sys/module/snd_hda_intel/parameters *** /sys/module/snd_hda_intel/parameters: Verzeichnis *** What should I get here? There is not other output. eduard@linux-m4mf:~> su Passwort: linux-m4mf:/home/eduard # vi /etc/modprobe.d/61-hda.conf linux-m4mf:/home/eduard # vi /etc/modprobe.d/61-hda.conf linux-m4mf:/home/eduard # more /etc/modprobe.d/61-hda.conf options snd-hda-intel power_save=0 linux-m4mf:/home/eduard # I will restart the computer now and try ...