Ubuntu Linux
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Blum #10584 Ezt talaltam:
Please run the following command in a Terminal:
gksudo gedit /etc/modprobe.d/alsa-base.conf
REMOVE the following single line using the gedit editor , IF it was previously added:
options snd-hda-intel model=auto
ADD the following single line using the gedit editor:
options snd-hda-intel model=generic
SAVE the change to /etc/modprobe.d/alsa-base.conf
Then REBOOT and retest sound using headphones and speakers.
After rebooting, make sure all channels are UNMUTED and volume set to 100% in alsamixer and gnome-alsamixerf