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Paper Tape
Infodata-Steven
Posts: 3
Registered: ‎02-14-2012
Location: UK
0

R400 No Sound after installing Windows 7

Hello All,

 

I have recently installed Windows 7 on a Lenovo Thankpad R400 which previously had Windows XP on.  Since installing Windows 7 the sound has not been working.  Windows 7 detected the sound chipset (Connextant SmartAudio) and installed it own driver,  I have also tried the Windows 7 driver from the Lenovo web site.  Both drivers seem to install ok but I still dont get any sound.

 

I have heard that the is a known issue with Windows 7 and the Connextant chip in R400, is this true?

 

Sound was working fine on Windows XP.

 

I would be greatful for any help or advice.

 

Thanks in advance

Steven

tanujhanda
Posts: 955
Topics: 3
Kudos: 80
Solutions: 65
Registered: ‎01-05-2010
Location: INDIA
0

Re: R400 No Sound after installing Windows 7

Hello Steven,

 

Kindly update the BIOS and check if the issue resolves.

 

Please download the BIOS update for 32bit Operating System

http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/7uuj48us.exe

 

Please download the BIOS update for 64bit Operating System

http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/7uuj48u6.exe

 

Best Regards,

Tanuj


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lead_org
Posts: 20,693
Topics: 128
Kudos: 1,229
Solutions: 1,311
Registered: ‎12-19-2008
Location: Australia, Melbourne
0

Re: R400 No Sound after installing Windows 7

go into your sound property, is the speaker selected as the main playback device?
Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft