No Audio on a T410

[JohnD.]

Hi Guys,

So this morning I turn on my T410 (Win 7 64 Bit) and I see in the system tray the Speaker Icon with a small "X" in a red circle.

When I hover the mouse arrow over it, a pop message states "No Audio Output Device is installed". When I click on it, Microsoft Diagnostics Troubleshooting Wizard runs and I get the message at the end "Audio Device is disabled."

So I went to the device manager, clicked on Sound, video and game controllers. I see the following listed:

Conexant 20585 SmartAudio HD
NVIDIA High Definition Audio
NVIDIA High Definition Audio
NVIDIA High Definition Audio
Unknown device

Now, I uninstalled the Conexant item and went to Lenovo's Support site and downloaded the driver and installed it. I did this several times. It did not fix it. I uninstalled all five items (the Conexant and NVIDIA drivers) and re-installed them and no dice.

I just ran Lenovo ThinkVantage Toolbox and the HD Audio Controller - High Definition Audio Controller passed the test.

Does anyone have any thoughts on what is going on here? The speakers and the earphone jack (I had a pair of ear buds listening to a MP3) were working yesterday. When I play a MP3 I get a error message and when I play a DVD, it does not play and gives me the message "Failed to open audio device" (this was with WinDVD software).

Any thoughts on what might be going on here?

Thank you,
John

[RealBlackStuff]

Did you ruin a USB-port?
Check them all carefully, they can short/crack easily.

[JohnD.]

Hi RBS,

It's funny that you mention the USB ports. I just checked them and no cracks nor shorts that I can see. But the three ports on the left side do not work. I plug in a thumb drive and nada but if I plug the drive in the yellow USB 2.0 port on the right side it works. Now I have a hardware error (from the ThinkVantage System checker) in the System Board with the Real Time Clock (RTC). Also, I get a pop up message (sometimes not all the time - from the system tray) that tells me "USB Device Not Recognized", when I don't have any devices attached via USB.

Any thoughts?

Thank you,
John

[emeraldgirl08]

To immediately rule out driver issues perhaps booting a live Linux Mint or Ubuntu disc (or USB) would help. If the audio does not work on linux then you might have a hardware issue. If you go this route then save the bootable Linux image! I keep a couple of Linux ISOs around and find them extremely helpful in troubleshooting. Good luck

[JohnD.]

Thank you and great idea. I will try one this morning/afternoon.

John

[JohnD.]

I am currently running the Unbutu Live CD and I have played back a YouTube video, placed a short movie clip that was on the Live CD and an audio file (song) and all of them I get sound from the built in speakers and the ear phone jack with my earbuds.

Now to figure out why Win 7 is giving me issues with the sound not working.

Thanks again Emeraldgirl!

John

P.s. It kind of wants me to make the switch to Linux.

[JohnD.]

The issue is fixed. Google is your friend...I searched "audio device is disabled" and the first link I got, I went to.

Here is the link from a MS support forum:

http://answers.microsoft.com/en-us/wind ... 166a0233b0

Under the first response from a MS Engineer, I found a post labeled Most Helpful Reply, here is what it says:

go to start search and type cmd search will return cmd.exe right click on this and select 'run as administrator' at the prompt type:-


net localgroup Administrators /add networkservice
press enter then type:
net localgroup Administrators /add localservice
press enter then type:
exit
press enter and restart your computer

I did this exactly as it states and bingo, I have audio! I don't know what these commands do and if you know let me know since I am curious about them.

Thank you again RBS & EG for your help this morning.

John