Windows 7: No sound when waking PC from sleep.

malrats · 27 Aug 2012

I have Windows 7 Ultimate x64. I just recently decided to start trying to put my PC to sleep rather than just let it run constantly when I'm not using it, and found that when I resume it, even if it's IMMEDIATELY after putting it to sleep, there is no sound.

The only "fix" I've found is to either reboot, or (the quicker method) is to disable and enable the sound card in device manager. Sound then immediately returns.

Obviously this is far from ideal and I'd love for it to just function properly. Any ideas? My sound is onboard Realtek HD audio on a Biostar A770E3 motherboard.

Thanks everyone.

fireberd · 28 Aug 2012

Generally, problems with sleep are device drivers. Check with Biostar to see if they have an updated RealTek sound driver (the sound driver from the motherboard vendor usually works best).

malrats · 28 Aug 2012

I've used both the most recent driver on the Biostar site and the most recent driver from Realtek, both with the same issue.

fireberd · 28 Aug 2012

Other than the video card, I'd make sure that you have all BIOS start drivers for the devices to start with. Get the latest video card Catalyst Control Center and driver from AMD.

As you can disable/enable in the Device Manager, suggests a corruption between Windows and the sound device. One thing to try, RIGHT click on the entry for the RealTek and then LEFT click "Uninstall". DO NOT check the box to uninstall the drivers. Restart the PC and when Windows starts it will detect and reinstall the sound. If there was any type of Windows corruption for the sound this will correct that.

malrats · 28 Aug 2012

I THINK I got it all sorted out.

What I ended up doing was uninstalling the latest drivers, which include Realtek's HD Audio Manager. Then in device manager, I scanned for new hardware and it installed my sound card as simply "High Definition Audio Device", and I just put the PC to sleep, woke it up and still had sound.

I can only assume their latest driver and/or audio manager is just terrible and was somehow causing the problem. And seeing as how my sound works just great without that driver, I'll just leave things this way and see how it works out.

fireberd · 29 Aug 2012

There is some type of conflict between the RealTek driver and your Windows install as it is not happening with ALL RealTek systems (I'm using RealTek). However, the generic windows installed HD Audio Codec is only a "basic function" driver and in many cases the opposite of you, it will cause problems.

Windows 7: No sound when waking PC from sleep.

No sound when waking PC from sleep. problems?