Welcome to the XWin X Server
Vendor: The Cygwin/X Project
Release: 1.20.4.0
OS: CYGWIN_NT-6.1-7601 Hamish-PC 3.0.7-338.x86_64 2019-04-30 18:08 UTC x86_64
OS: Windows 7 Service Pack 1 [Windows NT 6.1 build 7601] (Win64)
Package: version 1.20.4-1 built 2019-03-15

XWin was started with the following command line:

XWin -multiwindow 

ddxProcessArgument - Initializing default screens
winInitializeScreenDefaults - primary monitor w 1920 h 920
winInitializeScreenDefaults - native DPI x 96 y 96
[   392.984] (II) xorg.conf is not supported
[   392.984] (II) See http://x.cygwin.com/docs/faq/cygwin-x-faq.html for more information
[   392.984] LoadPreferences: /home/Hamish/.XWinrc not found
[   392.984] LoadPreferences: Loading /etc/X11/system.XWinrc
[   392.984] LoadPreferences: Done parsing the configuration file...
[   392.984] winDetectSupportedEngines - RemoteSession: no
[   393.000] winDetectSupportedEngines - DirectDraw4 installed, allowing ShadowDDNL
[   393.000] winDetectSupportedEngines - Returning, supported engines 00000005
[   393.000] winSetEngine - Multi Window or Rootless => ShadowGDI
[   393.000] winScreenInit - Using Windows display depth of 24 bits per pixel
[   393.000] winScreenInit - Monitors do not all have same pixel format / display depth.
[   393.000] winScreenInit - Performance may suffer off primary display.
[   393.015] winQueryRGBBitsAndMasks - GetDeviceCaps (BITSPIXEL) returned 24 for the screen.  Using default 24bpp masks.
[   393.015] winAllocateFBShadowGDI - Creating DIB with width: 3840 height: 986 depth: 24
[   393.015] winFinishScreenInitFB - Masks: 00ff0000 0000ff00 000000ff
[   393.015] winInitVisualsShadowGDI - Masks 00ff0000 0000ff00 000000ff BPRGB 8 d 24 bpp 24
[   393.015] winFinishScreenInitFB - fbFinishScreenInit failed
[   393.015] winScreenInit - winFinishScreenInit () failed
[   393.015] (EE) Fatal server error:
[   393.015] (EE) InitOutput - Couldn't add screen 0(EE) 
[   393.015] (EE) Server terminated with error (1). Closing log file.