Windows 7: cant hear anything through the headphones

Hello, as the tittle says for some reason everytime i plug in my headphones to my laptop the sound still plays like in the speakers instead of my headphones. i dont think theres something wrong with the headphone plug cause the laptop is only 3 months old.... i have a HP dm4-2050us..... please help its really annoying not being able to use my earphones.

I have voip sip softphone installed in my windows 7, sound are ok, when i tried to call or when somebody called me i can clearly hear it's ringing, but voice is not working, i mean, both sides can't hear anything. Is there something missing? please help. thanks!

To get the headphones working... right clik the speaker in the system tray and select playback devices, right clik on the headphones and select Set as Default device.

I'm having the same issue with headphones not exactly working. I know about making them the default, but, shouldn't they just become the default automatically when they are plugged in? That's the way my older Windows 7 machine works. Neither desktop machine has a sound card.

i do and when i click it the green check is still on the speakers in the settings...

yeah i dont like how you have to make the earphones default in order to be able to listen musci through them.

While puttering around with this issue, I found the darndest thing that seems to work for me on my Dell Inspiron 620S desktop (machine. I'm using it as an HTPC, so it's plugged into my Samsung TV, and the sound goes to the TV via the HDMI cable. The drivers that came with the unit didn't have an option for headphones that I could find, so I deleted them, rebooted and let the system install the Microsoft drivers which gave me headphones. However, I still had to switch to them in order to get sound through them. Just plugging them into the front of the machine was not enough.

I had set the default device to headphones, and, after using them, I unplugged them before I switched the default device back to the TV. To my surprise, the sound started coming out of the TV when I unplugged the headphones. Now I've left the default playback device set to headphones, and when they are plugged in, they work fine; when they are not plugged in, the TV speakers take over.

I figured I'd post that as it might solve someone else's problems.