No Sound on Toshiba Laptop

[GeoffB]

Hi everyone, A newby here.

I lost the sound on my Toshiba L350 laptop just after I installed an audio analyser program which I beleive tried to instal a soundblaster drive, but I'm not sure!

However, I've tried deleting, updating and unstalling the Realtek HD audio driver with no success. I've also downloaded the lated drive from the Realtek site (ver.2.68, dated 12/4/2012).
Each time open the driver and run the test, I can see the bar graph change with the test signal but still no sound.

I also ran Microsoft Fixit which says there are no issues with the sound and even re-installed windows vista using the 'clean windows option - still n change.
Any help would be most welcome

Geoff.

[tgell]

From what I have read, the Toshiba L350 has a mute button. Make sure that it has not been enabled by accident. There may also be some kind of mechanical switch to increase the sound. Can you hear sounds through earphones?

[GeoffB]

Hi Tgell,
Many thanks for the quick responce. You are correct there is a speaker on/off switch just above the keyboard and, a "function esc key" that puts a speaker on/off sigh next on the bottom right of the screen. However activating either of these still fails to give give me sound. I can also confirm no sound when headphones pluged in.

The fault does indeed look a though it could have been the above problem as everything looks fine. All the tests I've done thus far suggest the sound card is working .

Geoff.

[tgell]

Are there any errors shown when you run dxdiag? Are there any yellow exclamation marks in Device Manager? Is more than one sound device shown in Device Manager? Can you provide the last four digits after L350 on your computer? Is it a Satellite or Equim L350?

The following isn't exactly related to your problem, but make sure that digital is not selected.

http://www.spyontech.com/how-to/here...ed-problem.htm

[GeoffB]

Hi,

I've run dxdiag as suggested and no problems are reported. Also no yellow triangles on any hardware.

The computer is shown as a Satilite L350-159. Model No.PSLD0E-03Q0 1 MEN


Your last comment regarding the digital output is interesting as I've been doing some research in tinternet which has led me to the following:
When I open the playback device window and double click on the speaker Icon, to bring up speaker properties, it shows both the APAPI internal Jack and front panel 3.5mm jack under jack information. However, the LR (left/Right I assume) is next to the APAPI black dot, which suggest to me that the sound is being routed to the digital output and not the front panel jack and Speakers.

However, I cant find any way of changing which output is selected. I tried following the video on the website you kindly attached but my version of Vista does not show a Realtek menu when I go through Hardware and Sound from the control panel .

Your further comments would be appreciated.

Geoff.

[tgell]

If you right click on the speaker icon and select playback devices, is Realtek HD shown there? Realtek HD manager should be in the system tray. Is there a Realtek HD manager icon when you set the Vista Control Panel to classic view in the left pane?

[choganj]

It might be a hardware problem as well as software. First of all please make sure your hardware is in working condition (also make sure you have sound card installed to begin with).

If you re installed your operation system recently, chances are you didn't installed proper sound card drivers, so please make sure you installed proper sound card drivers.

If still you can't rectify this issue, you can use a USB sound card.

You can also view http://www.techyv.com/questions/no-s...-out-my-laptop for more information.

I hope it would be of some help.