the sound volume its low, apparently there is something wrong with the drivers because the sound its to low for the Realtek ALC888, its not the PMC problem where you just have to turn it up. I have tried installing the Realtek drivers, compiling the alsa drivers and its still low, its not hardware problem because xp can use the full sound, some people find that if the plug the sound in the front they get the expected volume, I cannot confirm this because I don't have a front jack. It seems that there is something in the drivers limiting the power the rear jacks can output, if I use the amarok equalizer to test the maximum volume achievable its still lower than xp with normal equalizer.
Thank you for taking the time to report this bug and helping to make Ubuntu better. Could you please add the output requested in the Reporting Sound Bugs section of https:/ /wiki.ubuntu. com/DebuggingSo undProblems as separate attachments? Thanks in advance.