I recently bought a dell Inspiron 14z (5423) with the i5 3317U 3rd gen processor and windows 7-64 bit - 8g RAM and an AMD video card etc etc.
when the computer came, the sound was working. but now it is not, and after trying to trouble shoot, installing drivers etc i reset the laptop to factory settings. this did not fix my problem, there is still an x in a red circle by the volume control AND i get the "No audio devices installed" when i look at playback AND recording devices.
BEFORE I RESET TO FACTORY SETTINGS: i kept getting the error message saying my hardware was not compatible with the driver i was trying to download - i tried downloading this driver ftp://ftp.dell.com/Pages/Drivers/inspiron-14z-5423.html#Audio
I just tried to download the driver from that link and got this message
"The hardware detected is not supported by this IDT software package. The install will be aborted."
You will probably need a new motherboard to fix it.
When the IDT driver is absent then Windows will automatically install its native HD audio driver, but that has not happened -- if it had you would not get the x in a circle. So it is not just an issue with the IDT driver. Also, when restoring to the factory image does not cure a problem that is because the problem was caused by a hardware failure, not software. Sorry.
I'm not sure.
Let me put it this way. You could get a usb audio adapter (they cost from very little to pricey) and get audio through either headphones or external speakers that you connect to the audio adapter's output jack. The reason that would work is because the usb audio adapter is a separate audio device from the audio device built onto the motherboard, so it doesn't matter if the internal device is working or not. An "audio device" in this sense is basically a digital-to-analog converter (DAC).
Bluetooth is out of my area. All I know about it is that it a wireless technology for use over very short distances. I am under the impression that bluetooth speakers have DAC's. If that is true then they are also "audio devices" in the sense I am talking about, and so should work just like a usb audio adapter does. A little more research is in order.