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06-24-2012 11:15 PM
This is a HP Pavilion g7-1261nr Notebook PC. We were watching a video last week with the sound through the system speaker. The show was interrupted for a microsoft update. The updates installed, and laptop rebooted. When it started up again, the unit had no sound. I have rolled back the update and reinstalled. No changes. Updated the bios again and again, no change.
Windows has no answers. Any ideas?
06-25-2012 05:19 AM
I don't quite understand by your post regarding "rolling back the update and reinstalled."
Do you mean you reinstalled the audio driver, or reinstalled the update?
If you didn't reinstall the audio driver from your notebook's support and driver page, try that.
06-25-2012 09:37 AM
> I don't quite understand by your post regarding "rolling back the update and reinstalled."
> Do you mean you reinstalled the audio driver, or reinstalled the update?
Thanks, Paul. I rolled back and reinstalled the Windows update.
> If you didn't reinstall the audio driver from your notebook's support and driver page, try that.
OK, now I have don that and still no sound. Not even the annoying system sounds from Windows. The speaker tray still has a red X, and when I click on it, "Troubleshooting couldn't identify the problem,"
No change. Any other suggestions, please.
06-25-2012 09:42 AM
You're very welcome.
Does your IDT HD audio controller show up in the device manager under the sound devices section?
If so, right click in it and select uninstall. Also, check the box to uninstall the driver.
Reboot and reinstall the driver I posted from the link above.
If the IDT audio controller is not listed in the device manager, try doing a hard reset of the notebook by following the guidance at the link below.
06-25-2012 10:23 AM
I uninstalled it, but I did not see how to "check the box to uninstall the driver." (This is where it gets really weird because I thought the driver is the only thing that CAN be uninstalled.)
Anyway, uninstalled and reinstalled the driver package from the earlier link. Still no sound, red X on the speaker icon in the tray -- no change.
06-25-2012 10:30 AM - edited 06-25-2012 10:44 AM
On Windows 7, when you right-click on a device and select Uninstall, there is normally a box to check to uninstall the driver as well. That was a feature that was added in W7.
In Vista and XP, you actually have to go to the driver tab and select Uninstall to uninstall the driver.
If you don't uninstall the driver, and just right click and uninstall the device, it uninstalls, but on reboot, the driver should automatically reinstall.
In W7, when you also click the box to uninstall the driver, on reboot, the driver will not be automatically reinstalled, and one needs to download and install the driver for the device.
In any event, since none of my suggestions got your audio back on line, I am at a loss to suggest any other things you can try, short of a complete system recovery.
Should you resort to that, don't forget to back up any files you don't want to lose.
06-25-2012 10:47 AM - edited 06-25-2012 10:47 AM
I did think of one other thing you can try...
Boot into the BIOS (hit the F10 key at the beginning of the HP welcome screen) and set the BIOS to its defaults, save the setting and exit.
Reboot, and see if that gets the sound back.