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I noticed that I can't send sound to my television when I connect my laptop to my tv through hdmi. I noticed that the hdmi is recognised, but I can't select it. I tried setting a profile to it, by using "Pulseaudio volume control" but no luck(image at the bottom of the post).

Here is the output from aplay -l:

**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

The device is an acer aspire 7750G with specs:

  • AMD Radeon™ HD 6650M
  • i7-2630M

I am using this driver:

The driver

So what am I to do next?

Thanks in advance.

No luck

share|improve this question
Are you using the radeon driver or the proprietary ones? – TheFiddlerWins Sep 3 '13 at 18:22
O ofcourse, I am using the ' X server' drivers, because proprietary and amd drivers both don't work(glitch out my screen or do not give a screen at all). – Dr_Bunsen Sep 3 '13 at 18:26
Duplicate question?… (I have same set up but I cannot get it to work properly, I get sound but not surround sound with either proprietary or default radeon drivers :( – TheFiddlerWins Sep 3 '13 at 18:28
@TheFiddlerWins That question was never answered, is about a different card and a different Ubuntu version. Thanks for looking though. – Dr_Bunsen Sep 3 '13 at 18:31
@Rinzwind That is the window you see on the left in the screenshot. If you can tell me what I have to do different, please tell me. Thanks for responding. – Dr_Bunsen Sep 3 '13 at 18:44

To activate HDMI audio while using the open-source drivers edit the /boot/grub/menu.lst file and add this to the end of your "kernel" line:

Also in terminal type this following command to update grub:

sudo update-grub

share|improve this answer
I found that I am using grub2, which uses grub.cfg. At which line? My uname -r gives back 3.8.29, but there are 3 lines that match with that given kernel name. – Dr_Bunsen Sep 4 '13 at 17:51

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