You might want to try a clean installation and the workaround suggested on http://forum.notebookreview.com/showthread.php?t=331172
As root (sudo, su, however you prefer to get there), edit the file /etc/modprobe.d/alsa-base and add this line to the end of the file: options snd-hda-intel enable_msi=1 Then reboot. Please note that recent updates (applied between June 15, when I first did the above, and June 22), caused the file to disappear - its entire contents were copied to /etc/modprobe.d/alsa-base.conf. When this happened, I was back to choppy sound. I restored sound by sudo cp -p /etc/modprobe.d/alsa-base.conf /etc/modprobe.d/alsa-base and rebooting. Refer also to bug# 269012 and bug# 355747, and to https://help.ubuntu.com/community/SoundTroubleshooting/#Having%20sound%20issues%20with%20HP%20dvx%20laptop -- no sound on HP Pavilion tx2510us https://bugs.launchpad.net/bugs/318637 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs