If this is still not working on Ubuntu 11.04 "Natty Narwhal", there is a patch upstream in the recently released kernel 3.1-rc1 which might help:
commit b68785714b67079385188323631b05a8f9093675 Author: Kailang Yang Date: Wed Jul 6 09:51:29 2011 +0200 ALSA: hda - Add Realtek ALC269VC codec support Add the support of ALC269VC codec. Also delete the unnecessary codec_variant type enum list: now only three variants (ALC269VA ALC269VB ALC269VC) are needed. In addition, added some aliases: - Add ALC269VB alias name ALC277 - Add ALC269VC alias name ALC259 ALC281X - Add ALC269VC for Lenovo device 0x21f3 name ALC3202 Signed-off-by: Kailang Yang Signed-off-by: Takashi Iwai Note the alias name ALC259. A PPA of this kernel is available at http://kernel.ubuntu.com/~kernel- ppa/mainline/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/631288 Title: [Realtek ALC259] ALSA test tone not correctly played back To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/631288/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs