I have an HP Pavilion Dv6-2157wm laptop with Altec Lansing speakers, SRS Premium Sound, powered by an IDT card I believe. Well, when I plug in my headphones (or earbuds) sound comes through them but also from the main speakers as well. I don't believe it is a hardware issue because the jack works fine on Windows and no sound comes from the speakers. Also, did I mention that I'm dual-booting? I've looked all around, but I can't seem to find a driver for ANY of these services. Oh, and I've also tried the GNOME Alsa Mixer (from the Ubuntu Software Center) and it didn't yield much. What do you guys suggest? Please help! I really like what I see in Ubuntu and have even considered making it my mainstream OS.
P.S. If I have to try anything via the Terminal, could you please walk me through it? I know only the basics of the terminal and have turned to the software center for my installations.