Hi, folks, [a more complete version of my announcement in #ubuntu-devel on Freenode]
Based on the abysmal feedback that we received for Karmic/9.10 regarding powering down HDA controllers after ten idle seconds[0], I've reverted the change in the most recent upload of alsa-driver 1.0.22.1 to Lucid/10.04 and, in doing so, restored the behavior shipped in Jaunty/9.04. So, at the cost of less efficient battery use [for unplugged laptops] one will no longer hear the annoying crackling and popping associated with these HDA controllers. This change was also driven by the fact that Lucid's shipped kernel is highly unlikely to have the necessary patches backported. The good news, OTOH, is that over the past month my fixes for these symptoms (including the infrastructure) have landed in alsa-driver 1.0.22.1 and will be available in crack-of-the-day alsa-driver snapshot builds soon and/or via linux-backports-modules-alsa-lucid-generic. Additionally, there is ongoing work to power down additional nodes for the HDA codecs; please find me on IRC (or leave a note via memoserv) if you wish to help roll out these fixes for your particular hardware. Please have your /proc/asound/card*/codec* handy/pastebinned. Thanks, Dan [0] https://lists.ubuntu.com/archives/ubuntu-devel-discuss/2009-May/008239.html -- Ubuntu-devel-discuss mailing list Ubuntu-devel-discuss@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss
