My labtop has no sound coming from it i cant hear my music or anything else.. In the lower left hand of my screen i can adjust my volume but it keeps saying NO AUDIO DEVICE INSTALLED and i dont know how to fix this problem ..PLEASE HELP ME!!!!!!!!!!!
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this might sound really silly but some laptops after a while get a glitch where they cant power down fully and go into sleep or hibernate adn i have seen it happen to people who do not allow the battery to completely drain occasionally, had a family members did this recently. Just to rule it out turn it on and shen you hear fans and see lights even with no desktop, press and hold on the power button 3-5 sec until it shuts itself down, then do a normal start when you can see no lights or hear any sounds. Good luck.
The auditorium sound effect maybe selected. Right clicked on the speaker icon at the bottom right hand corner of the
screen, selected playback devices, left clicked to highlight the
'speakers' then clicked properties in the lower
right of the open window, clicked on the enhancements tab, and change the auditorium enhancements to 'none
1. Do you have an external volume control on the side? If so adjust it.
2. Do you have a speaker symbol in your lower right hand toolbar? If so, right click on it, go to open volume control, and adjust the slides.
3. No speaker in the toolbar? Left click START, choose CONTROL PANEL, find the ikon that says SOUND AND AUDIO DEVICES, double left click it and adjust the volume.
If the computer starting up and Windows is running properly but the screen is black (or the desktop is barely visible if you look at the screen closely), the backlight inverter circuit is probably to blame. This provides power for the display's backlight, and without the light you can't see the display even though it is working properly.
Fortunately, replacing the inverter in most laptops is pretty easy. Replacement parts and how-to information for many brands and models can be found online. Just search for "replacement inverter" for your brand and model and you should find several sources. A good place to find vendors today is eBay.
Replacing the inverter typically involves only a few steps. You remove a few screws to open the display. The inverter is usually a small board at the bottom of the display, held in by a couple of screws. Unplug a couple of cables, take out the old board. Then put the new one, reassemble the display and you should be back in business.
On the other hand, if the power light comes on when you press the button but the computer isn't starting up to Windows, there's some other issue that needs to be fixed. Connect an external monitor to your computer to verify it's really starting up (unless you are hearing the normal startup sound through the speakers). If an external monitor shows everything else is good, replace the inverter. Otherwise you'll need to see why your computer isn't starting.
Good luck on a speedy repair. Thanks for using Fixya!
Have you checked the sound properties to see if anything is muted? Double Click the speaker icon in the lower right hand of the screen (near clock). This will bring up a slider. Make sure "Mute" box is not checked, and adjust slider upwards. If you cannot hear any sound still, you will have to reinstall the sound card driver or if that doesnt help, then you may have to install a new sound card.