Results 1 to 3 of 3

Thread: HDMI sound problem

  1. #1
    Junior Member
    Join Date
    Dec 2010
    Posts
    2

    HDMI sound problem

    I'm having a problem with the HDMI connection from my laptop to my high def TV.

    I have a DELL Inspiron 1525 laptop connected to a high def TV via the HDMI port

    If I boot the machine using Windows XP Pro (which is what I have installed on the internal drive), the picture shows on the TV and the sound come out of the speakers on the TV.

    But if I boot Knoppix (which I run from a 4GB Kingston Flashdrive), the picture shows on the TV but the sound still comes from the laptop (rather then from the speakers on the TV)

    Most people are going to say "why not just use XP"

    The answer to that is: When I use XP (to watch TV on the Internet), every so often the show (playing at the time) runs in... kind of slow motion. Its almost like the processor is having a problem rendering the picture.
    It doesn't occur very long and it always speeds-up again but its very irritating.

    When I run Knoppix, this problem never occurs (ie. The TV show plays smoothly all the way through)
    But again, the sound continues to come from the laptop speakers (rather then the speakers on the TV)

  2. #2
    Senior Member registered user
    Join Date
    Dec 2009
    Posts
    423
    This is something I have never tried before but maybe the problem should be divided as two,

    1. To identify if the system has identified the presence of audio on HDMI
    2. To channel the voice to the right audio device

    For (1), you can try this command 'aplay -l' to see if there is 'HDMI' audio
    For (2), you need to run 'alsamixer' and/or 'amixer' to channel the audio to the HDMI.

  3. #3
    Senior Member registered user
    Join Date
    Feb 2010
    Posts
    512
    I think that you should create a configuration file /home/knoppix/.asoundrc as described in the thread http://www.knoppix.net/forum/threads...l=1#post121157

    If you want to use more than one audio device at a time then you should install pulse audio. It allows you to select the audio device in a comfortable way.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


Apple .mac Box Vintage picture

Apple .mac Box Vintage

$4.99



Vintage Compaq 141649-004 2 Button PS/2 Gray Mouse M-S34 - FAST SHIPPING - NEW picture

Vintage Compaq 141649-004 2 Button PS/2 Gray Mouse M-S34 - FAST SHIPPING - NEW

$8.99



Drakware ADB2USB - vintage Apple ADB to USB keyboard adapter picture

Drakware ADB2USB - vintage Apple ADB to USB keyboard adapter

$29.95



Vintage 93073U6 MAXTOR 30GB  3.5

Vintage 93073U6 MAXTOR 30GB 3.5" IDE Hard Drive

$24.95



Vintage Microsoft Wheel Mouse Optical Mouse Black (Factory Sealed Retail Box) picture

Vintage Microsoft Wheel Mouse Optical Mouse Black (Factory Sealed Retail Box)

$49.99



NEW Manufacture OLD STYLE Oval 3 Prong Power Cord HP style 125V 7A 875W Vintage picture

NEW Manufacture OLD STYLE Oval 3 Prong Power Cord HP style 125V 7A 875W Vintage

$39.95



Vintage Macintosh Canvas Carry-On Bag Rainbow Apple (2 of 4) picture

Vintage Macintosh Canvas Carry-On Bag Rainbow Apple (2 of 4)

$29.99



VINTAGE 1994 3COM ETHERLINK III 3C509-C ISA ETHERNET RJ45 / COAX/ THICK LAN2 picture

VINTAGE 1994 3COM ETHERLINK III 3C509-C ISA ETHERNET RJ45 / COAX/ THICK LAN2

$34.95



Vintage Digital Computer Controls DCC-116 Front Control Panel Console picture

Vintage Digital Computer Controls DCC-116 Front Control Panel Console

$2799.00



Vintage Varian Data Machines Data 620/i Front Control Panel Console picture

Vintage Varian Data Machines Data 620/i Front Control Panel Console

$2996.00