First of all,
The Linux Mint distro, I'll talk about: Petra, 32bit, Cinnamon.
My Laptop is: Acer Aspire 6930G, with NVidia 9600M GT on it.
I decided to open a new thread cause I can't find a solution by myself.
For the last couple of week I tried to resolve my sound issue, I googled it, watched some: Ubuntu-Opensuse-Fedora and of cause a Linux Mint forums.
Unfortunately with no sucess.
There was a couple of guys that solved their sound problems by "unmuting some outputs" and similar kind of way.. but in my case this don't work.
What is my exact problem:
I have my Acer laptop connected to 24" external Samsung monitor via HDMI cable (its model: SyncMaster T240). The monitor itself has no built-in speakers, but it do have a standart headphones output (where I connected my ext. speakers.
The problem is:that there is no output on those ext. speakers, instead of this all the sound goes through my laptop speakers or my headphones (if they are connected to laptop).
There was a couple of things that I've tried:
1. Installed pavucontrol.
At the "configuration" I choose several options like:"Digital Stereo(HDMI) output + Analog Stereo Output" or just "Analog Stereo Output" the maximum I've got from those settings was the situation I described above.
At the "Output Devices" I choose:" HDMI/Display Port" option, with/without "fallback" option selected (BTW what this option means? ^_^) -- Nothing happend.
2. The installation of "Daily Updated DKMS...." and updated my User Groups (could someone provide me some addition info what do I need those groups for?) ---> I cheked "pulse" and "pulse access".
Like this guy:
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http://forums.linuxmint.com/viewtopic.php?f=48&t=150972
It feels like my system reconizes HDMI output (at least it sees some HDMI output) but won't work with it.
3. I've have also tried:
Like in this thread:Keep the line GRUB_CMDLINE_LINUX="radeon.audio=1" in /etc/default/grub
Run: sudo update-grub, and
Restart the system.
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http://askubuntu.com/questions/285920/no-sound-through-hdmi-out-13-04
*** Futhermore, I was up with some interesting moment: when I updated my GRUB I got this message:
, I got it in both cases, I mean, when I added the "radeon.audio=1" string, and after I returned myNo Volume Groups Found
GRUB file to the original state.
Some additional info (in case you need more just tell what command to use ^_^):
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**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC888 Analog [ALC888 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC888 Digital [ALC888 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: LX3000 [Microsoft LifeChat LX-3000], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
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aplay -L
default
Playback/recording through the PulseAudio sound server
sysdefault:CARD=Intel
HDA Intel, ALC888 Analog
Default Audio Device
front:CARD=Intel,DEV=0
HDA Intel, ALC888 Analog
Front speakers
surround40:CARD=Intel,DEV=0
HDA Intel, ALC888 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=Intel,DEV=0
HDA Intel, ALC888 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Intel,DEV=0
HDA Intel, ALC888 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Intel,DEV=0
HDA Intel, ALC888 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Intel,DEV=0
HDA Intel, ALC888 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Intel,DEV=0
HDA Intel, ALC888 Digital
IEC958 (S/PDIF) Digital Audio Output
hdmi:CARD=Intel,DEV=0
HDA Intel, HDMI 0
HDMI Audio Output
dmix:CARD=Intel,DEV=0
HDA Intel, ALC888 Analog
Direct sample mixing device
dmix:CARD=Intel,DEV=1
HDA Intel, ALC888 Digital
Direct sample mixing device
dmix:CARD=Intel,DEV=3
HDA Intel, HDMI 0
Direct sample mixing device
dsnoop:CARD=Intel,DEV=0
HDA Intel, ALC888 Analog
Direct sample snooping device
dsnoop:CARD=Intel,DEV=1
HDA Intel, ALC888 Digital
Direct sample snooping device
dsnoop:CARD=Intel,DEV=3
HDA Intel, HDMI 0
Direct sample snooping device
hw:CARD=Intel,DEV=0
HDA Intel, ALC888 Analog
Direct hardware device without any conversions
hw:CARD=Intel,DEV=1
HDA Intel, ALC888 Digital
Direct hardware device without any conversions
hw:CARD=Intel,DEV=3
HDA Intel, HDMI 0
Direct hardware device without any conversions
plughw:CARD=Intel,DEV=0
HDA Intel, ALC888 Analog
Hardware device with all software conversions
plughw:CARD=Intel,DEV=1
HDA Intel, ALC888 Digital
Hardware device with all software conversions
plughw:CARD=Intel,DEV=3
HDA Intel, HDMI 0
Hardware device with all software conversions
sysdefault:CARD=LX3000
Microsoft LifeChat LX-3000, USB Audio
Default Audio Device
front:CARD=LX3000,DEV=0
Microsoft LifeChat LX-3000, USB Audio
Front speakers
surround40:CARD=LX3000,DEV=0
Microsoft LifeChat LX-3000, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=LX3000,DEV=0
Microsoft LifeChat LX-3000, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=LX3000,DEV=0
Microsoft LifeChat LX-3000, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=LX3000,DEV=0
Microsoft LifeChat LX-3000, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=LX3000,DEV=0
Microsoft LifeChat LX-3000, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=LX3000,DEV=0
Microsoft LifeChat LX-3000, USB Audio
IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=LX3000,DEV=0
Microsoft LifeChat LX-3000, USB Audio
Direct sample mixing device
dsnoop:CARD=LX3000,DEV=0
Microsoft LifeChat LX-3000, USB Audio
Direct sample snooping device
hw:CARD=LX3000,DEV=0
Microsoft LifeChat LX-3000, USB Audio
Direct hardware device without any conversions
plughw:CARD=LX3000,DEV=0
Microsoft LifeChat LX-3000, USB Audio
Hardware device with all software conversions
Any help will be greatly appreciated.
Thanks in advance.
P.S. This situation was the same when I installed Linux Mint 15, Ubuntu, OpenSuse distros.