Realtek Onboard Audio + Ubuntu


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Thread: Realtek Onboard Audio + Ubuntu

  1. #1
    Join Date
    Sep 2002
    Posts
    19

    Realtek Onboard Audio + Ubuntu

    I have an EPOX 9NDA3J Motherboard that has an 8 channel Realtek ALC850 onboard device that uses AC'97 sound driver. I'm running Ubuntu Hoary 5.04. When I hook up my 5.1 speakers to all the correct inputs (Center, Front, Rear) my system plays sound back, but I'm not getting surroudn sound. Instead Im getting only 2 channel audio, as if I have 2 speakers. I've been researching the issue, but I have not been able to find a decent solution. I've got Alsa working, but Ubuntu doesn't seem to know that I'm hooking up 5.1 speakers, and instead I'm only getting 2 channel sound.

    I dont know if this is an ALSA issue and I need to recompile ALSA, or if this is a Realtek issue. They have drivers on their site, but I can't get them to install correctly. I'm not even sure if I have the right sound device. Here's the info

    Code:
    modinfo soundcore
    filename:       /lib/modules/2.6.10-5-386/kernel/sound/soundcore.ko
    description:    Core sound module
    author:         Alan Cox
    license:        GPL
    alias:          char-major-14-*
    vermagic:       2.6.10-5-386 preempt 386 gcc-3.3
    depends:
    srcversion:     4CCBC38AF44D1461882C573
    Code:
    lsmod | grep snd
    snd_bt87x              12612  0
    snd_intel8x0           29984  0
    snd_ac97_codec         64608  1 snd_intel8x0
    snd_pcm_oss            47652  0
    snd_mixer_oss          16768  1 snd_pcm_oss
    snd_pcm                84872  4 snd_bt87x,snd_intel8x0,snd_ac97_codec,snd_pcm_oss
    snd_timer              23300  1 snd_pcm
    snd                    50276  7 snd_bt87x,snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
    soundcore               9824  1 snd
    snd_page_alloc          9604  3 snd_bt87x,snd_intel8x0,snd_pcm
    Heres the code from lspci...A lot of NVidia devices are unknown...I don't know if it has anything to do with this issue, but maybe someone can help me understand the stuff I put in these code boxes.

    Code:
    lspci
    0000:00:00.0 Host bridge: nVidia Corporation: Unknown device 00e1 (rev a1)
    0000:00:01.0 ISA bridge: nVidia Corporation: Unknown device 00e0 (rev a2)
    0000:00:01.1 SMBus: nVidia Corporation: Unknown device 00e4 (rev a1)
    0000:00:02.0 USB Controller: nVidia Corporation: Unknown device 00e7 (rev a1)
    0000:00:02.1 USB Controller: nVidia Corporation: Unknown device 00e7 (rev a1)
    0000:00:02.2 USB Controller: nVidia Corporation: Unknown device 00e8 (rev a2)
    0000:00:05.0 Bridge: nVidia Corporation: Unknown device 00df (rev a2)
    0000:00:06.0 Multimedia audio controller: nVidia Corporation: Unknown device 00ea (rev a1)
    0000:00:08.0 IDE interface: nVidia Corporation: Unknown device 00e5 (rev a2)
    0000:00:0b.0 PCI bridge: nVidia Corporation: Unknown device 00e2 (rev a2)
    0000:00:0e.0 PCI bridge: nVidia Corporation: Unknown device 00ed (rev a2)
    0000:00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
    0000:00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
    0000:00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
    0000:00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
    0000:01:00.0 VGA compatible controller: nVidia Corporation: Unknown device 00f2 (rev a2)
    0000:02:08.0 Multimedia audio controller: VLSI Technology Inc Thunderbird (rev 06)
    0000:02:08.1 Input device controller: VLSI Technology Inc Thunderbird
    0000:02:09.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
    0000:02:09.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
    Now I have an ATI TV tuner card attached, and I believe that is the snd_bt87x device, so the only conclusion I can think of is that the snd_intel8x0 is the device for my on board audio.

    Any help would be greatly appreciated.
    Last edited by J-Val; 08-23-2005 at 09:06 PM.

  2. #2
    Join Date
    Sep 2002
    Posts
    19

    ???

    all the views, and no response? Anyone use a EPoX board with that sound device on it?

  3. #3
    Join Date
    Sep 2002
    Posts
    19
    Well I went to Realtek's site and downloaded and installed their drivers. However it still sounds like I have damn 2 channel sound.

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