Update Windows 10 my second monitor can't be detected

Describe your system:

  • AMD Graphics Card
    • AMD Firepro M4100 FireGL V
  • Desktop or Laptop System
    • Laptop HP Zbook 14
  • Operating System
    • Windows 10 64bit
  • Driver version installed
    • Advanced Micro Devices, Inc 15.201.2401.0
  • Display Devices
    • External display: ACER AL 2216W via VGA cable
    • Laptop screen
  • Motherboard
    • HP zbook 14 std baseboard
    • Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz


  • 8GB


Describe your issue:

Can't detect my 2nd monitor anymore after update to Windows 10. Tried update my driver via device manager, tried to install from the site (not sure if I had the right driver), and of course some reboots. What else can I try, and what driver should I install, and should work??

Could it be something with the cable? The monitor does something when I connect the cable, but says No signal.