AnsweredAssumed Answered

Can't set main display when I extend the displays, "make this my main display" grayed out

Question asked by theandygram on Dec 19, 2018
Latest reply on Dec 20, 2018 by theandygram

Hello everyone. I recently had to have my computer repaired and it required a wipe of (actually the installation of a new) hard drive.


Since getting the computer back I have been unable to use the "Extend These Displays" AND select "Make This My Main Display" in the Windows Display Settings. It is grayed out. I have checked for updated drivers, found them on the Dell site and installed them.


Before having the computer fixed, it was able to do this without a problem. Does anyone have any thoughts or suggestions? The required information is shown below.


Many thanks and Happy Holidays.




AMD Radeon Settings software:




Radeon Software Version - 18.12.2
Radeon Software Edition - Adrenalin 2019
Windows Version - Windows 10 (64 bit)
System Memory - 16 GB
CPU Type - Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz



Radeon Settings Version - 2018.1206.1949.35667
View Release Notes -
Driver Packaging Version - 18.50.02-181206a-337011C-RadeonSoftwareAdrenalin2019
Provider - Advanced Micro Devices, Inc.
2D Driver Version -
Direct3D® Version -
OpenGL® Version - 25.20.15000.13543
OpenCL™ Version - 25.20.15002.58
AMD Mantle Version -
AMD Mantle API Version – 102400
AMD Audio Driver Version - Not Available
Vulkan™ Driver Version - 2.0.64
Vulkan™ API Version - 1.1.86



Graphics Card Manufacturer - Powered by AMD
Graphics Chipset - AMD Radeon (TM) R5 M335
Device ID – 6660
Vendor ID – 1002
SubSystem ID - 06B2
SubSystem Vendor ID – 1028
Revision ID – 81
Bus Type - PCI Express 3.0
Current Bus Settings - PCI Express 3.0 x4
BIOS Version -
BIOS Part Number - BR46914.001
BIOS Date - 2016/08/16 05:47
Memory Size - 4096 MB
Memory Type - DDR3
Memory Clock - 900 MHz
Core Clock - 1070 MHz
Total Memory Bandwidth - 14 GByte/s
Memory Bit Rate - 1.80 Gbps
2D Driver File Path - /REGISTRY/MACHINE/SYSTEM/CurrentControlSet/Control/Class/{4d36e968-e325-11ce-bfc1-08002be10318}/0001
OpenGL® API Version - Not Available
OpenCL™ API Version - 1.2


Display devices:

Dell U2415b


Display adapters:

AMD Radeon R5M335

  •           Refresh rate 60Hz
  •           Bit depth 8-bit

Intel HD Graphics 520