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Acer laptop has no sound.

Acer laptop running Vista Home Premium has no sound.  The device appears in the device manager with no "!" or "X", however there's an X on the speaker in the system tray.  Also, if you left-click the speaker and choose Open Volume Mixer the window that pops up says, No audio device is installed.  If you click on Playback Devices when left-clicking the speaker the speakers DO appear as working on the Playback tab of the Sound window.  Also, iTunes says there's no sound device installed.

I've uninstalled the device and reinstalled.  Downloaded the most recent driver from Acer's website and installed it.  I've tried the headphone jack as well, still no sound.

Ideas?

Thanks!
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CraigSNYC
Asked:
CraigSNYC
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2 Solutions
 
timexistCommented:
1,right click computer, select manage, then go to device manager,
2, expand sound, video and game controllers
check out the item under it.
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CraigSNYCAuthor Commented:
@timexist: please reread my post.  i've already done that.  

The device appears in the device manager with no "!" or "X"
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CraigSNYCAuthor Commented:
@timexist: please reread my post.  i've done that.  

"The device appears in the device manager with no "!" or "X","
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timexistCommented:
go to control panel , select sound, double click it, go to voice or hardware tab, check them out.
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CraigSNYCAuthor Commented:
ummm...that's the same thing as left-clicking on the speaker in the system tray.  
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timexistCommented:
are you able to select a device from drop down list under VOICE tab?
if not, then you can remove the sound device from device manager.
then restart you computer.

and then try to  run ADD HARDWARE again to find it.
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CraigSNYCAuthor Commented:
there is no voice tab.  on the sound control panel window there are three standard tabs: playback, recording and sounds.

as i said in my post i've uninstalled the sound card and reinstalled it.  downloaded the most recent driver, uninstalled it and reinstalled it using the most recent driver from acer.
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nobusCommented:
is the problem recent?   then a system restore can help.
it can also be the device went bad...you can always use another sound device to test (usb sound card)
or test if it works when running from another OS, or a bootable cd :
ftp://ftp.kernel.org/pub/dist/knoppix/KNOPPIX_V5.0.1CD-2006-06-01-EN.iso           Knoppix      
www.nu2.nu/pebuilder/                               BartPe
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CraigSNYCAuthor Commented:
I used system restore and the X on the speaker in the system tray has disappeared and the option to change the sound level is an option in the sound control panel.  However, I can play any sounds.  But, there is a warning beep when the power cord is unplugged.  Also, if I uninstall and reinstall the driver AFTER the system restore then the X appears on the speaker again in the system tray.

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CraigSNYCAuthor Commented:
I also tried USB speakers, but they don't work as well.  Do they use the sound card?
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nobusCommented:
yes, they use the same.
>>   if I uninstall and reinstall the driver AFTER the system restore then the X appears on the speaker again   <<   can it be a bad driver?   download another to test
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CraigSNYCAuthor Commented:
I think the problem is the sound card.  Yes, I downloaded the most recent driver (twice) from Acer's website.  And, a point of interest: I did a chat session with Acer's support to see if they have diagnostic utilities for their systems.  They do not, so, I can't test the speakers.  

I also tried booting the system into SafeMode but just before the Windows logon screen should appear the system reboots.  And, I tried booting Ubuntu from CD, the system bluescreens at the end of it loading the OS.  I thought the problem might be some type of malware so I ran AVG, Spybot, MalwareBytes and Windows Defender.  Spybot found a couple of tracking cookies but the system is otherwise clean.  

I think I'm going to tell the client to get an external sound card and it's most likely that.
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CraigSNYCAuthor Commented:
Is it likely the sound card is bad even though it's integrated onto the motherboard?  A lot of the time I've found that when components like the sound card are integrated that it's usually all-or-nothing: the motherboard/system are dead or they're not. True?
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nobusCommented:
>>  I tried booting Ubuntu from CD, the system bluescreens at the end of it loading the OS.   <<   this points to ba hardware - not sure if it's the sound card; did you try the knoppix too ?
check if you can disable the sound card from Bios (when you install another one)
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danhill85Commented:
So has the sound ever worked on this laptop? If so what was the last software/drivers installed before the sound stopes working?
After the system restore the X isn't in device manager and then when you install the drivers you get the X << that sounds like your installing the wrong drivers. The drivers you are using do support vista?
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timexistCommented:
I feel sorry to say this, but it looks like you need to try a clean OS installation.
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ajmehtaCommented:
You might be best off disabling the audio device in device manager, and just using a USB sound adapter that you can plug speakers or headphones into.  Since the hardware sounds like it's bad you can get something like this:
http://cgi.ebay.com/USB-V5-1-Audio-Mic-Speaker-Sound-CARD-PC-Skype-Adapter-/270638378085?pt=LH_DefaultDomain_0&hash=item3f034dec65
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