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That "no audio devices are installed" message does not refer to the headphones, but to the sound chip in the laptop. Your operating system is not seeing the laptop's audio chip, which is built into the laptop's motherboard. This could be due to a hardware failure, or a software problem (corruption of the audio chip's driver). To tell which of these is the problem, open "Device Manager" and look for any device that may be highlighted with an exclamation mark. If anything that resembles an audio device is so marked, it means the operating system is able to see the audio chip. and you problably don't have (total) audio hardware failure. You have to search, download and install the driver for this "problem" device. If no audio device is seen at all, then there is probably a hardware fault with the motherboard/audio chip. All is not lost. You can buy an inexpensive USB audio dongle that will allow you to route sound out from the laptop into external speakers or headphones. However, you'll lose the use of the internal laptop speakers that were dependent on the internal audio device (chip).
The obvious, is it muted? NO. Disable device in Device Manager, enable device, no change, uninstall audio device, reboot, I don't know your OS, your OS should automaticly ID the audio an add driver. If it does not go to Acer website a download audio driver for your OS. Install manually. You stated,"after installing a hard drive I had from another laptop" . The Harddrive you installed, did you format it and install into this laptop and clone the drive? I am a bit confused by the statment, "after installing a hard drive I had from another laptop"?
Most generally, audio problems on laptops are not hardware issues to begin with, but problems with the software that controls the audio components. Check the ObviousBefore delving into repair solutions, there is the possibility you can't hear audio from your laptop due to basic settings that have been changed. Check the volume level. If your laptop has physical buttons to control audio, make sure the mute button is off and the volume is turned up. Check the volume control on your operating system to make sure the slider corresponds to your button settings. Physical buttons on your laptop may stop working for a number of reasons, so be sure to confirm your software audio settings using the audio controls found in your operating system. Also, make sure nothing is plugged into the headphone jack. Headphones or any other audio device plugged into the headphone jack will mute your laptop speakers. Reinstall the DriverA driver is a program that controls the hardware of your computer. Rule out file corruption of the audio device driver on your laptop by reinstalling the driver. This can be accomplished by locating the device in your operating system control panel and uninstalling the driver. When you reboot your computer, the operating system will search for available drivers for your audio device and install them. Upgrade the DriverHardware manufacturers for devices on your computer frequently update drivers to resolve issues discovered after the original drivers were released. These updates could contain fixes to the very problem you have encountered that prevents the audio device from working properly. Just as you located your audio device to re-install the driver, use the device manager in your operating system to identify the specific sound device used by your laptop. Go to that manufacturer's website and locate the latest driver for this device. Download the most recent driver release and install it on your computer. Check the Headphone JackThe most common point of failure in laptop audio hardware is the jack that connects your headphones or external speakers to your laptop. When this jack fails, it could mute the sound to your internal speakers as well, but more commonly it affects only the audio heard when you try to plug in your headphones. If you suspect the headphone jack is the problem, you should take your laptop to an authorized repair center for service. Depending on your model, you may have to replace a single inexpensive component or your entire computer main circuit board to remedy the problem. Thanks for using FixYa hope this will help your problem.Please don't forget to vote.Reymond
Hello, You have to reinstall the audio driver when you format the OS. that is the reason for your OS not detecting the audio device. You will have your driver;s CD with you which you would have got when you bought the laptop.
The audio driver should be on the install disc and if not go to the asus site and download it and reinstall it.Toy may also want to look in your recycle bin if you have not emptied it . http://www.new-drivers.com/files/sound/?gclid=CL-_i7uv-ZUCFQQRswodVHSXFg
I'm not sure whether this is the exact same problem, as I was having, but mine just randomly quit while I was listening to music this morning. I got messages saying "No audio device installed", but when I went to device manager, all my audio devices said they were working properly. If this is the case with you, simply restart your computer. It may take a couple restarts, but this should work. My sound was back even before it finished shutting down.
If it helps anyone trying to get to the root of this problem, I am running XP on a Dell B130 laptop, with the following devices listed in Device Manager: Audio Codecs Legacy Audio Drivers Legacy Video Capture Devices Media Control Devices SigmaTel High Definition Audio CODEC Video Codecs Hope this helps!