same problem, same machine but have run 14.04 since it came out and have updated 2 times per week
i tried using proprietory nvdia drivers, just ripped my screen, now using gallium 0.4 and putting up with the sound annoyance -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1315784 Title: [Aspire X3400, Nvidia MCP77/78 HDMI, Digital Out, HDMI] Underruns, dropouts or crackling sound To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1315784/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
