AD1984

AD1984 This is a Analog Devices High-Definition Audio controller Features Chipset: AD1984 Interface: HD Audio

Linux ALSA driver

This device isn't supported by current Alsa Driver [1] (as of May 25, 2007).

However, Takashi Iwai has added support to this device in Alsa development version [2]... Still have to wait to get it included in the Linux Kernel... Note: It is rather trivial to get this working in a standard kernel right now, It is only 3 patches on top of the stock 1.0.14 code:

• Fix Oops with AD1984 thinkpad model
• Fix AD1984 basic model
• Fix Thinkpad X61/T61 outputs

Alsa-Driver 1.0.14 added some support for this chip, but did not work on my T61; however, using the latest HG/Mercurial makes everything work. I created a Debian package for unstable/sid with the HG alsa that works for me, available at [3]. --Jello 15:31, 6 July 2007 (UTC)

amd64 debian packages here: http://www.cse.unsw.edu.au/~jdas417/alsa-modules-2.6.21-2-amd64_1.0.14-1_jda+2.6.21-10.00.Custom_amd64.deb http://www.cse.unsw.edu.au/~jdas417/alsa-modules-2.6.22-1-amd64_1.0.14-1_jda+2.6.22-3_amd64.deb --jashar

Works with Kernel 2.6.22 and Alsa 1.0.14a --Schlodty 12:01, 21 July 2007 (UTC)

Did not get it to work on X61s with either of the above packages. Newer HG packages do support this chip, so alsa 1.0.15 should have full support for this chip. --hjh 9:09, 27 July 2007 (UTC)

Debian users (both Stable/Etch and Testing) can use the small script 1 i wrote to patch and build an alsa module package (with module-assistant). --Fpiat 11:45,04 August 2007 (UTC)

Works with a patched 2.6.22.1 kernel using the 2007/07/20 patch from ftp://ftp.alsa-project.org/pub/kernel-patches/ . Just make sure that you have the PCM channel unmuted and the speaker switch checked. --Mozz 17:13, 7 August 2007 (UTC)

Above patches are in kernel mainline from Kernel 2.6.23-rc1 , it works on my T61 --Brain79 22:01, 09 August 2007 (UTC)

Trouble shooting

ATTENTION!

It's really necessary to leave the modem enabled in the BIOS or the hda_intel driver will reutrn azx_get_response timeouts which will lead to a non-working soundchip. Got that information from a comment from: here --Gladiac 06:12, 24 July 2007 (UTC)

This chip may be found in

• R61
• T61
• X61, X61s, X61 Tablet

Datasheets

• Analog Devices page for the AD1984