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Missing Audio Device in the Device Manager

Posted on 2011-10-11
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Last Modified: 2012-05-12
I have a Toshiba Satellite L755-S5248. I just recently loaded Windows XP Pro on it. I've managed to find most of the XP drivers for it by looking up the VEN/DEV ID's. Everything is installed and working except for the sound. There is no audio device in the device manager. According to the device manager, everything is installed. The audio is enabled in the system BIOS. What could cause this problem? Is there a way around it?
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Question by:active_datacomm
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Expert Comment

by:andyb1rd
ID: 36949999
download these drivers http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/download.jsp?ct=DL&soid=2195831&ref=EV
then do a check hardware in device manager so go to start right click my computer choose manage then from computer manger on the left hand side double click device manager on the right hand side right click your computer name then scan for hardware changes. if it sees you device it will ask for the drivers so have them ready from the download above. and that should do it
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by:active_datacomm
ID: 36950600
No devices appear in the device manager if I scan for hardware changes.
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Expert Comment

by:nobus
ID: 36954350
ok - if the audio is nable din bios, and you don't see any audio device in device manager - and no problem device, that means there is no audio device seen

you can test if the audio works when booted from a live Knoppix cd : ftp://ftp.gwdg.de/pub/linux/knoppix/KNOPPIX_V6.7.0CD-2011-08-01-EN.iso   

 what can you try : reset the bios, or upgrade it

or use a nother audio card : http://www.nextag.com/audio-card-laptop/compare-html
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Expert Comment

by:andyb1rd
ID: 36954490
its possible the drivers for the audio device are already installed but dont show as windows doesnt show all drivers it has been connected to (this can cause conflicts as there might be more than one version so xp cant run the correct version so doesnt display hardware) . to see all the driversfor windows xp. go to safe mode then look in device manager you will then see all the drivers xp has for the hardware devices it has loaded in the past. see if you can see your audio device then and remove it or them if there is more than one version of audio device. reboot then scan for new hardware again.
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Accepted Solution

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active_datacomm earned 0 total points
ID: 37006662
Read a suggestion in another forum that it could be a problem with the way SP3 handles audio devices. Installed Windows SP2. The audio device showed up in the device manager, and I was able to install the proper driver. When I updated to SP3, however, the audio quit working, and the device went missing again. I don't have the laptop in-shop anymore, but that was definitely an enigma.
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Author Closing Comment

by:active_datacomm
ID: 37035265
Hope this helps somebody in their search...
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