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12-04-2015

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No sound through display port onto TV

2017-03-29, 18:38 PM

Greetings,

I have a T540p laptop with an Intel HD Graphics 4600 and NVIDIA GeForce GT 730M video card.  When I plug the display port using an HDMI adapter into my TV, I get picture but no sound.  The 4600 is using 20.19.15.4501 drivers.  If I delete the Intel driver from the system, run the setup of the driver downloaded from Lenovo and reboot, the audio works fine.  If the cable is disconnected from the TV, the laptop is powered down, the TV is turned off, the PC screen saver turns on or any part of the A/V is disconnected, the next time it is reconnected, there is no audio again.  The playback device is the TV and all settings appear to be the same as when it was working.  Re-deleting and re-installing fixes it for one time again.  

 

Any ideas on how to fix this as it is very annoying to have to reboot my PC every time I need to do a presentation or watch a movie?

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10390 Posts

01-02-2010

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Re: No sound through display port onto TV

2017-03-29, 19:52 PM

What OS?

 

Right click the speaker in the taskbar.  Select audio devices.  What devices appear?

 

 


Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.
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5 Posts

12-04-2015

here

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Re: No sound through display port onto TV

2017-03-29, 20:52 PM

Both the PC speaker and the TV set are in playback devices and the TV set is the default.  As stated, this is the same when I first install the driver and reboot and after the TV is disconnected and then reconnected.  However once disconnected, no sound comes out the TV set until I reinstall the video driver.

 

Operating system is Windows 10 Enterprise.

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