While you can integrate graphics drivers into boot.wim, WinPE has no provision to run at resolutions above 1024x768 or even display on multiple screens. WinPE was designed to execute for a short period of time (typically less than 5-10 min.), so it only uses a generic video mode.
If you change the Post-Setup
(Before logon) to run earlier, it's possible to have a 3rd-party tool like
MultiMonitorTool to change the video settings during the specialize pass.
1. Add your graphics driver to install.wim.
2. Add your monitor driver(s) to install.wim.
3. Enable
Unattended mode (if not already in use). If you have no unattended settings to change, just leave Unattended mode untouched.
4. From
Post-Setup, change
Before logon - Mode to
Unattended.
5. Download
MultiMonitorTool, and provide the necessary command line to enable dual-monitor mode. Check MultiMonitorTool's web page for more instructions on using command line options. You can test the same command on a live system.
For example:
| Command | Parameters |
| MultiMonitorTool.exe | /SetMonitors "Name=\\.\DISPLAY1 Width=1920 Height=1080" "Name=\\.\DISPLAY2 Width=1920 Height=1080" |
