no sound from internal speakers or head phones
where is the sound card located
Once i had same issue tried restore my sound driver. After restoring it was working but after half hour its gone forever. Again tried but this time it won't enable. Finally i got heIpIine toII free (800) 585-2494 and got my problem solve. there was some malicious software which was stopping sound driver.You should also contact them.
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Don't know ubuntu but what does Windows Device Manager show about the Sound Controller, is the controller installed correctly or even there?
If Win 10 installed, right click Win 10 start button, select Device Manager. When it opens scroll down to Sound, Video and game controllers, click on > to expand the list, right click on the Sound Controller listing (if it is there) select Properties and check what it says in the device status box in the General tab. (If not Win 10 go to Control Panel > Device Manager)
If it says “This device is working properly” then it is a hardware problem from the audio controller output to the speakers, the headphone jack or both, as the OS can communicate with the controller
If there is nothing listed under Sound, video and game controllers, check if there is a listing under “Other Devices” (if this category is shown) in Device Manager. According to this the audio controller is a Realtek HD Audio controller given that that is the driver they’re supplying for it. Sony has stopped support for the laptop so I assume that it would be correct, but I would have thought that Win 10 would have installed “generic” Windows audio drivers if it detected it, unless it was deemed too old. If it is there try installing the drivers from the link
Apologies if you know how to use Device Manager.
If it is shown in Device Manager as working OK and it doesn’t work, I don’t know the laptop but with headphone sockets it could be configured one of two ways.
One way is that internal changeover contacts in the headphone socket are used so that normally the audio is directed to the speakers. When a headphone jack is inserted the contacts changeover to direct the audio to the headphones and break the connection to the speakers. If the headphone jack was loose from the motherboard this may be why there is no audio at all.
The other way is that there is an internal make contact in the headphone socket that operates when the headphones are plugged in and this sends a signal to the BIOS/OS which tells the audio controller to switch the audio output away from the speakers and onto the headphones. If the headphone jack was loose or faulty in this scenario then there would always be audio at the speakers and never at the headphones.
If it is not shown in Device Manager at all then there is a hardware problem with the audio controller. The user manual doesn’t show that the audio controller can also be disabled in BIOS like other hardware can in the laptop, e.g. LAN or USB etc but still maybe worth a look just in case ;-)
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