Sound not working after sleep or Hibernate

Configurare noua (How To)

Situatie

After your PC wakes from sleep or hibernate mode, the sound stops working. You might see:

“No Audio Output Device is installed”
Or speakers work again only after a reboot.

Solutie

Step 1: Restart Audio Services

Open services.msc

  • Find these services:

    • Windows Audio

    • Windows Audio Endpoint Builder

  • Right-click each → Restart

If unavailable, open Device Manager, and:

  • Right-click your audio device → Disable → Enable again

Step 2: Disable Audio Driver Power Saving

  • Open Device Manager > Sound, video and game controllers

  • Double-click your sound card → Power Management tab (if available)

  • Uncheck Allow the computer to turn off this device to save power

If using Realtek or USB audio device:

  • Do the same under Universal Serial Bus controllers

Step 3: Change Default Format

  • Right-click volume icon → Sounds > Playback

  • Select your device → Properties > Advanced

  • Try different sample rates like 44100 Hz, 48000 Hz

  • Uncheck Allow applications to take exclusive control

Step 4: Update or Roll Back Driver

Sometimes Windows auto-updates a faulty driver.

  • Go to Device Manager → Audio device → Properties > Driver

  • Click Roll Back Driver if available, or Update Driver manually from manufacturer site.

Tip solutie

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