The sound worked out of the box, but it was weird and distorted. No sound at all Low volume output High pitched noise Poor sound quality Sound disappears when touching volume controls Sound works at random after each reboot No mic working Sound only plays through headphones or internal speakers not through attached audio sets Manually Specify Module Parameters First you must find which model of sound card you use, so run this command: Webarchive template wayback links Articles containing potentially dated statements from All articles containing potentially dated statements All articles with unsourced statements Articles with unsourced statements from November Consequently, an HDA motherboard would not detect the presence of an AC’97 dongle with a disconnected pin 4. Now, I have a startup script that I run as part of my user login to set up my desktop environment and kick of my development environment, so it was enough for me to put this command in that script. A similar isolated switch is used to detect when a microphone has been plugged in. The cable looks somewhat like this , with the AC 97 connector attached to the HD audio connector.

Uploader: Zologrel
Date Added: 13 February 2012
File Size: 63.16 Mb
Operating Systems: Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads: 66864
Price: Free* [*Free Regsitration Required]

Post navigation

The linked articles have more detail on that. Not present, physical key. On AC97 audio to the rear audio output was looped by the front audio output and plugging in a device to the front panel audio output would electrically disconnect the rear audio output from the audio source. If the headphones are not plugged in, the jack directs the audio to the return pins that are azalai to the speakers. Interfaces are listed by their speed in the roughly ascending order, so the interface at the end of each section should be the fastest.


The cable looks somewhat like thiswith the AC 97 connector attached to the HD audio connector. Booting If your boot hangs on loading the module for snd-hda-intel, try disabling the card in your BIOS. Retrieved 14 January As a result, the correct volume sliders might not be visible.

I no longer saw my Intel HDA soundcard listed in the gnome sounds settings. It is up to software whether to disable the rear panel audio output when a connector is plugged into the front panel output.

HD Audio or AC97 connector – Which to use when, and what’s the difference? – Super User

If more specific information is needed, i’ve put the motherboard from a dell into a cosair graphite T, hhda to test the case pending the rest of my hardware. Home Questions Tags Users Unanswered. As of Ubuntu 6.

Consequently, a loud audio passage may make the HDA motherboard with AC’97 dongle believe that headphones and microphones are being plugged and unplugged hundreds of times per second. The sound worked out of the box, but it was weird and distorted. If you really liked it, please consider becoming a patron. HD-Audio-Models If you compiled your own kernel or ALSA modules, the documentation for your version can probably be found in the source package you used Search for your model, and take a look at its types, for example I found the following lines for ALC When the plug is inserted, the isolated switch inside the jack informs the motherboard, and the codec sends audio to the headphones.

Intel High Definition Audio also called HD Audio or development codename Azalia is a specification for the audio sub-system of personal computers.

Microphone bias Audio, right, in biased, mic. The motherboard can determine if the dongle is plugged in by examining the logic level on pin 4. HD Audio is intended to replace AC’ Contact me skadge -at- gmail -dot- com if you have the same issue.


Been searching for a fix since last kernel update, no t-shirt until I found this article azalja half an hour ago. This might not be relevant to azalja problem, but when I upgraded from Identify the Problem Most cards seem to work as of Ubuntu 9. On some motherboards it may be possible to disable the plug-in detection so they can work better though still not perfectly with an AC97 front panel.

HD Audio is generally more capable.

Suspicious Activity Detected

On the other hand HD audio cables have a wire and terminal connecttor lurking there, waiting silently in that cold dark hole poised and ready for the time when a naive unsuspecting pin 4 who isn’t even old enough to leave his motherboard slips into the High Definition Audio clutches of that extra wire.

When a plug is inserted, the stereo signals contact the respective channels on the plug and are disconnected from the jack’s return pins. You need to therefore reload the detection libraries and restart pulseaudio, run the following command: By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The pins that were previously used to loop back audio from the front are repurposed as connector-detect pins.

Intel products Sound cards. HD Audio can sense the presence of an audio dongle.

An AC’97 dongle returns audio on pins 6 and 10 rather than a digital plug sensing signals.