Re: HP Laptop - lost my sound after installing updates
On Wed, 5 May 2010 07:31:16 +0800, "Andrew Murray"
><five256@NOwhere.com> wrote in message
>> Sometimes, after installing MS updates or other apps, I lose my sound.
>> The only way I get it back is to use System Restore to a point where the
>> sound worked. However, then I don't have the updates or apps. This
>> tells me that it's a software problem with Vista - not a hardware
>> problem. Now, I am about 11 MS updates behind - and no sound. Also, the
>> System Restore doesn't work anymore (I no longer have a Restore point
>> where the sound worked). I've Googled and have found that many people
>> have similar problems with their HP laptops. I am using Vista, SP-2. I
>> am now going to ionstall the updates since I can't go back to get the
>> sound. I've checked in Device Manager (no problem) and made sure I'm
>> using the most recent signed driver. I can't find any text indication
>> that I have a problem but when I go to Playback Options and try the sound
>> Test, I get a message which says the sound didn't play. Hope I included
>> all the relevant information. If not, please tell me. I've tried
>> everything I know of. I have a full backup of my hard drive - but don't
>> see how that can help. Perhaps one of you can help me or point me in the
>> right direction. I don't know where to go from here.
>This seems to be caused by the Windows update; however you should really
>contact the HP support people, since they are supposed to support the
>hardware and OEM Windows edition that was preinstalled on the computer when
>purchased (assuming you haven't installed a standard retail edition).
>They will probably suggest you update the hardware drivers from their
>website; it's not advisable to rely on, or allow Windows Update to update
>drivers for sound or video hardware, especially for laptops from OEM's like
>HP, Acer, Dell etc with integrated "onboard" sound or video. They should
>have the drivers available from their websites.
>In the meantime try going to Control Panel and to the Device Manager and
>double check the "author" of the driver is HP rather than Microsoft; if it's
>the MS driver, try to use the "rollback" feature to load the previously used
>driver for the sound card/chip.
>You might want to change the updates options to notify you they are ready to
>install rather than automatically installing, since Windows will probably
>try and install anything it thinks needs updating including hardware drivers
>(although hardware updates are usually "optional" rather than "critical" or
>"important") but these should be downloaded separately from the manufacturer
>website as mentioned above - don't rely on Windows Update for the device
>drivers that it offers.
>One last thing you can try, delete the sound item from Device Manager, close
>down and restart the computer, and it should reboot and reload the drivers.
>If the laptop came with a sound utility, e.g. "Realtek" which produces
>sound hardware has a utility that might be included that can be used to
>diagnose issues with your sound - but HP might have a similar utility that
>was included with your laptop.
Thanks so much. I have updated the sound driver(s) a number of times and
have not paid attention to the author. I have been using a utility which
notifies me when my drivers are out of date - and offers updated drivers
for download. I wasn't aware that there were different authors and not
to assume MS drivers were good. Actually, I haven't been to the hP site
yet to see what drivers they have. I have two drivers in the Device
manager which relate to sound. One is: IDT High Definition Audio CODEC.
The other is Intel(R) High Definition Audio HDMI. Are they both sound
drivers or should I only be concerned about one? Thanks!