| Problem | Solution | |---------|----------| | FN keys not working | Reinstall Sony Firmware Extension Parser & Shared Library in order. | | No sound after sleep | Disable “Allow the computer to turn off this device” for Realtek Audio in Power Management. | | Webcam not detected | Install Sony’s Vaio Camera Capture Utility (not just the driver). | | Brightness keys don’t work | Install Intel Graphics Command Center → Override the hotkey behavior. |
Realtek audio driver conflict after Windows 10 update. Solution: Uninstall the existing High Definition Audio device in Device Manager. Check "Delete driver software". Then install the specific Realtek driver from 2015 or later (v6.0.1.7540 recommended). drivers sony vaio pcg 71911m drivers full