Windows 7 sound not working
I have a Lenovo Thinkpad x230 running windows 7 x64. When I boot the laptop I get the normal windows sounds but I try to play music or something via youtube there is no sound.
On investigation I have found that if I go to control panel, sound, select the speakers and the advanced tab. By changing the default format from one value to another and applying the sound will work correctly until the laptop is rebooted.
Once rebooted if I check the default sound format the previously selected format has been retained but no sound until I change it. I have tried changing between all available formats from CD quality to studio quality. Each and every format will work for the specific session but when the laptop is rebooted I have to change to format.
Any help you can offer would be great as I have a customer waiting to take delivery of the laptop.
Thanks in advance
On investigation I have found that if I go to control panel, sound, select the speakers and the advanced tab. By changing the default format from one value to another and applying the sound will work correctly until the laptop is rebooted.
Once rebooted if I check the default sound format the previously selected format has been retained but no sound until I change it. I have tried changing between all available formats from CD quality to studio quality. Each and every format will work for the specific session but when the laptop is rebooted I have to change to format.
Any help you can offer would be great as I have a customer waiting to take delivery of the laptop.
Thanks in advance
ASKER CERTIFIED SOLUTION
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Do you have Realtek sound driver installed or Dolby software? It seems others with the same model laptop have had the same issue. Try uninstalling either or both and see if the problem is fixed.
Also possibly a workaround if you have Realtek installed:
Workaround is to select the Multistream mode from Realtek control panel, Device advanced settings
Workaround is to select the Multistream mode from Realtek control panel, Device advanced settings
ASKER
I will have to park this until Wednesday as customer needed to take the laptop. Thanks for the suggestions I will post back ASAP.
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ASKER
I ended up having to remove the Realtek software/driver completely and leave it off the system.
Bad drivers was it?
ASKER
Seems so. Specified Lenovo drivers provide no available options in Realtek control panel.
When removed HD Audio works ok. If I get time I will try driver direct from Realtek
When removed HD Audio works ok. If I get time I will try driver direct from Realtek
ASKER