Fix When Sound Doesn’t Work After Hibernate or Sleep in Vista
Most regularly reported problems with Windows Vista is that the hibernate function – one of the power-saving modes – does not work. Throughout trial and error (and a lot of time spent trawling throughout blogs of both users and Windows developers) I’ve come across some solutions that seem to work for generally people.
Hibernation problems on Vista fall generally in:
1. Computers fail to wake up from hibernation.
2. Computers fail to hibernate.
3. Computers keep waking up from hibernation when it is supposed to be sleeping.
4. Computers Sound doesn’t Work after Hibernate or Sleep in Vista.
Here I’ll discuss the 4th step...
So, if you have started noticing that your sound is disabled in Windows Vista after you wake your computer from Sleep mode or hibernate, then you are in luck, because Microsoft has a hotfix for this issue.
If you are experience this problem, you will probably notice a red X on the volume icon in the system tray, and a message when you stay close to it that says “No Audio Output Device is installed”.
Fix for this issue is to install a hotfix from Microsoft, available on internet software downloading web sites is:
A high definition audio device may no longer work after you resume Windows Vista from hibernation or from sleep.