Member Avatar for isitme810

Hi,

Suddenly my Laptop sound is not working. Even headphones are not working when I plug it to my laptop.

When I select sound from control panel it says 'No Audio Device'.

I have Ubuntu 10.04 installed along with windows XP. The sound has disappeared in ubuntu also.

Please help.

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  • Latest Post Latest Post by jean122

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Short expert summary: the report of "No Audio Device" in Windows XP combined with the same failure in Ubuntu 10.04 points away from a Windows-only driver problem and toward a BIOS-level disable or a hardware fault (jack switch, codec, or motherboard audio circuit). This note ties together points raised by (driver checks), (Device Manager), (system restore) and (BIOS) and gives a focused diagnostic path to narrow the cause.

First, quick verification steps that separate hardware from software: confirm speakers/headphones work with another device; check any hardware mute/volume keys or LEDs; try a powered USB audio adapter or USB headset to see if either OS produces sound through a USB device (a fast way to prove the internal audio is at fault). If possible, perform a power reset (remove AC and battery, hold power button 20-30 seconds, reconnect) before further steps.

Next, BIOS and OS checks: enter BIOS/UEFI (common keys: F2, F10, Del, Esc at boot) and verify "Onboard/Integrated Audio" is enabled; if enabled, try toggling off, save, reboot, then re-enable and save. In Windows XP, open Device Manager and look under "Sound, video and game controllers" for missing or unknown devices; also run Start -> Run -> services.msc and ensure the "Windows Audio" service is started and set to Automatic. If the device is present but drivers are missing, obtain the vendor's XP audio driver for the exact laptop model rather than using a generic driver.

If the internal device never appears in Device Manager and BIOS shows audio enabled, hardware is likely failed or the front/headphone-jack detection switch is stuck. At that point a repair shop or a quick USB audio adapter are the pragmatic options; reseating an internal audio cable sometimes helps but should only be attempted if opening the laptop is comfortable. System Restore (as suggested) may help when the root cause is a recent software change, but will not restore a failed audio codec or a disabled BIOS setting.

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Member Avatar for Shinedevil

Make sure that the drivers are installed, just in case you uninstalled them by accident. That would cause your sound device to not work. Otherwise, your device might have failed, though, chances are it hasn't, and if the problem persists, try taking it to the local PC repair shop and see if they can diagnose the problem without rebuilding your operating system.

Member Avatar for ChrisHunter

Doing a system restore might also work, it has for me in the past,

Member Avatar for JorgeM

Another aproach is to go into the Windows Device Manager, uninstall the device, have device manager rescan and it will locate the device again. provide windows with the most up to date drivers for this device.

I agree that it is unlikely that the sound hardware is damaged.

Member Avatar for jean122

If you can get in to your bios, check if soundcard is enabled, if not enable it. a disabled soundcard in bios might cause the problem you have.

Gr Jeannot

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