It seems the same bug: Bug #89155: ali m5451 audio broken https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/89155 -- No sound after initial install https://bugs.launchpad.net/bugs/82986 You received this bug notification because you are a member of Kernel Bugs, which is a bug contact for linux-source-2.6.15 in ubuntu.