** Attachment added: "Dependencies.txt" http://launchpadlibrarian.net/37942279/Dependencies.txt
** Attachment added: "XsessionErrors.txt" http://launchpadlibrarian.net/37942280/XsessionErrors.txt ** Tags added: karmic ** Also affects: mactel-support Importance: Undecided Status: New -- Update to 2.6.31-18.20 broke sound on MacBook Pro 5.4 in Ubuntu 9.10 https://bugs.launchpad.net/bugs/508161 You received this bug notification because you are a member of Mactel Support, which is the registrant for Mactel Support. Status in Mactel Support: New Status in “linux-backports-modules-2.6.31” package in Ubuntu: New Bug description: Not sure whether the culprit is the kernel package upgrade or the associated alsa backports upgrade, but sound stopped working after the reboot. alsamixer reports "no mixer elements found". Reverting to the previous kernel 2.6.31-17-generic and the associated alsa backports package fixes it (but one has to unmute the front speakers again in alsamixer, just like after initial installation). I tried to use the hardware identifying command in https://wiki.ubuntu.com/DebuggingSoundProblems but it didn't work and I couldn't figure it out. The link to the alsa-info.sh script on the same page is dead. Here goes what I have, let me know if you need more. lspci says: 00:08.0 Audio device: nVidia Corporation MCP79 High Definition Audio (rev b1) /proc/asound/card0/codec#0 says: Codec: Cirrus Logic CS4206 Vendor Id: 0x10134206 Subsystem Id: 0x106b4c00 Revision Id: 0x100301 ProblemType: Bug Architecture: amd64 Date: Fri Jan 15 23:37:27 2010 DistroRelease: Ubuntu 9.10 InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027) NonfreeKernelModules: nvidia wl Package: linux-backports-modules-alsa-2.6.31-18-generic 2.6.31-18.20 ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.31-17.54-generic SourcePackage: linux-backports-modules-2.6.31 Uname: Linux 2.6.31-17-generic x86_64 _______________________________________________ Mailing list: https://launchpad.net/~mactel-support Post to : [email protected] Unsubscribe : https://launchpad.net/~mactel-support More help : https://help.launchpad.net/ListHelp
