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
  •  


A-Tech 8GB DDR3 1600 PC3-12800 Laptop SODIMM 204-Pin Memory RAM PC3L DDR3L 1x 8G picture

A-Tech 8GB DDR3 1600 PC3-12800 Laptop SODIMM 204-Pin Memory RAM PC3L DDR3L 1x 8G

$13.99



Crucial DDR3L 16GB 1600 2x 8GB PC3-12800 Laptop SODIMM Memory RAM PC3 16G DDR3 picture

Crucial DDR3L 16GB 1600 2x 8GB PC3-12800 Laptop SODIMM Memory RAM PC3 16G DDR3

$22.45



Team T-FORCE VULCAN Z 32GB (2 x 16GB) PC RAM DDR4 3200 (PC4 25600) Memory picture

Team T-FORCE VULCAN Z 32GB (2 x 16GB) PC RAM DDR4 3200 (PC4 25600) Memory

$54.99



HyperX FURY DDR3 8GB 16GB 32GB 1600 MHz PC3-12800 Desktop RAM Memory DIMM 240pin picture

HyperX FURY DDR3 8GB 16GB 32GB 1600 MHz PC3-12800 Desktop RAM Memory DIMM 240pin

$23.95



Samsung 16GB (4x4GB) 1Rx8 PC3-12800U 1600Mhz DDR3 RAM Memory M378B5273DH0-CK0 picture

Samsung 16GB (4x4GB) 1Rx8 PC3-12800U 1600Mhz DDR3 RAM Memory M378B5273DH0-CK0

$14.00



A-Tech 8GB PC3-12800 Desktop DDR3 1600 MHz Non ECC 240-Pin DIMM Memory RAM 1x 8G picture

A-Tech 8GB PC3-12800 Desktop DDR3 1600 MHz Non ECC 240-Pin DIMM Memory RAM 1x 8G

$13.99



HyperX FURY RAM DDR4 16GB 8GB 32GB 4GB 3200 2666 2400 2133 Desktop Memory DIMM picture

HyperX FURY RAM DDR4 16GB 8GB 32GB 4GB 3200 2666 2400 2133 Desktop Memory DIMM

$9.64



A-Tech 32GB 2x 16GB PC4-21300 Laptop SODIMM 260-Pin DDR4 2666 MHz Memory RAM Kit picture

A-Tech 32GB 2x 16GB PC4-21300 Laptop SODIMM 260-Pin DDR4 2666 MHz Memory RAM Kit

$59.99



A-Tech 128GB 8x 16GB 2Rx4 PC4-19200R DDR4 2400 ECC REG RDIMM Server Memory RAM picture

A-Tech 128GB 8x 16GB 2Rx4 PC4-19200R DDR4 2400 ECC REG RDIMM Server Memory RAM

$175.92



32GB 16GB 8GB DDR3 2400MHz G.Skill Ripjaws DIMM Overclock Gaming Memory RAM LOT picture

32GB 16GB 8GB DDR3 2400MHz G.Skill Ripjaws DIMM Overclock Gaming Memory RAM LOT

$69.99