Speakers do not work

These are analog speakers and do not need a driver. First, make sure they're plugged into the speaker/headphone jack and not the microphone jack. Second, make sure the computer's sound output is enabled and set the headphone/speaker jack. Third, verify that the sound output is working by plugging in a headphone set or a different pair of speakers. If the computer sound checks out, the speaker cable is bad or the power supply is not working.

Most modern computers come with internal speakers already installed, especially laptop computers.
These speakers may be sufficient if you are performing typical computer tasks, but when you play computer games, listen to music or watch movies on your computer, you may want louder and more vibrant sound.
You can achieve this by installing external speakers or headphones. These can be connected to your computer through the speaker or USB ports included on your computer.

Plug in the speakers or headphones.
If the speakers or headphones use a stereo plug, insert the plug into the speaker/headphone port normally located on the side or front of your computer.
This port is often color-coded green. If the equipment is connected using USB, locate a free USB port.
Some external speakers will also need to be plugged into a power outlet in the wall or your surge protector.
This may be all you need to do to get the speakers or headphones to work. If they do not, continue to the next step.
Open the audio settings on your computer.
From the Windows Start menu, open the Control Panel. Here you will find audio and sound settings.
Click the heading to see your sound and audio options.
Choose "Manage audio devices" in Windows 7.


Find your Playback device.
In the Playback tab, you can select your speakers and set them as the default for your system.
If you do not see your speakers or headphones, they have not been installed properly. Disconnect and reconnect them to see if it corrects the problem.

Configure your settings.
Select your device from the list and click "Configure" to test your settings.
You can adjust the volume by using the volume slider on your computer's task bar or using external controls on the speakers or headphones.


Install speakers
http://www.liutilities.com/how-to/install-speakers-to-a-computer/

Most likely its a nardware problem.
If Device manager shows the audio driver is working and enabled and when you plug an headphone into the headphone/audio out and you only get sound from the right headphone then the audio amp chip is faulty.
If the headphone sounds OK then the easiest solution is to connect a set of powered speakers to your laptop.

This is the normal way for this laptop ..leave it always with the headphones on selected in that list ..cause if the main speakers don't work well there is no point in using them ..This way you will run whatever yo will plug in ..speakers or headphones..The only setting difference in headphones and stereo out ..is that for headphones will but the speakers of the laptop when plugged in ..This way it will even help you if the speakers are making weird noises cause they are damaged ..

Try following solutions, if it works for you

To switch between speakers and headphones on Firefox,
make sure your headphones are plugged in first,
Right click on volume on the bottom right corner of your screen,
Then select Volume Mixer,
then double click on System sounds,
Click on the playback tab,
then you could switch between speakers or headphones, just select one and click "set default" and OK
only sounds in firefox will play in the headphones,
and windows media player will play on the speakers

You could leave your windows media player to play on the speakers while you listen to firefox videos in the headphones

If you want the media music player to play in your headphones also;
You have to change it in the media player program,
go to options on the media player, then look for playback devices, there should be 2 options speakers and headphones,
just pick one

I usually set the firefox audio to my headphones,
and a media player to the speakers

Please rate & vote if you like solution...

Thanks

Are you sure that the soundcard supports 5.1 on your laptop?

Try here:http://www.computing.net/answers/windows- xp/headphones-amp-speakers-switching/55486.html Also:http://www.vistaheads.com/forums/microsoft-public-windows-vista-music-pictures-video/133605-sound-doesnt-switch-automatically-headphones-when-plugged.html Also:http://www.vistax64.com/sound-audio/198039-sound-doesnt-switch-speakers-headphones.html scroll down the page for the discussion.

Make sure in the volume mixer that it is using the right sound device. You most likely have it set to the wrong device output. When you plugged in the headphones in kinda automatically switches, but to use the speakers again you have to do it manually. Just hook up a cheap av receiver to your computer and use this headphone input instead. a 100$ 5.1 av receiver beats any pc speaker system.

May be yor codec (decoding system) is missed. Try different player, also if using Klitecodecks reset settings. Find sound program and turn off 5.1 or 7.1 sound and choose 2 speakers.

Believe it or not, not all speaker plugs, even if they are of the same size are NOT made the same.Some times the "male" PLUG pushes into the "female" socket in such a way that it makes NO connection or does not make the right connection causing the headphones not to work.
TEST: play music that u can hear through the internal laptop speakers, and while the music is playing, plug in the headphones.
The internal speakers SHOULD cut out, and under normal conditions the music should pass through the headphones.
If the speakers cut out and the headphones don't work, your plug is damaged.
If the speakers DON'T cut out after u plug in the headphones, your plug is open.
Depending on the audio circuit, your audio amp. inside the laptop is going to get damaged.
It depends on the WAY the audio circuit was made.