After auto update to windows 10 fall creators update the extended screen mode doesn't remain set nor does it enable properly at first.
the Dell Inspiron 1525 (32bit) has a mobile Intel express 965 CHipset. The driver that was loaded (Microsoft Corporation WDDM 1.1 )
Driver version 220.127.116.1197 provided by Intel published by Microsoft.
The Inspiron has a VGA port which on my system connects to a HP-LA2405 1920/1200 monitor.
Since displays were working before the Windows 10 Fall creators update, I believe the update tossed out the original Vista driver and put the one mentioned above in its place.
On boot monitor not enabled.
Using Display manager : MultipleDisplay mode:
If I choose "extend these displays" the external monitor will do nothing.
If I choose to Duplicate then the external monitor does as expected.
If I change form duplicate to extended the external monitor does as expected. and all works fine.
After reboot all setting is lost and I must go through the process of duplicate then extend again.
Is there a workaround or script to maintain this setting?
Should I go back and load the vista driver?
Or is this a Windows 10 OS issue and would retreating to an earlier OS version get extended monitor function back?
PS: Intel inspection and driver update utility found nothing.
UPDATE: Worked with Microsoft support person who forced the re-installation of the updated driver published by Microsoft, despite the the "you have the best already installed" response from the wizard.
Use device manager to get to the driver's properties. Choose the Driver tab and update driver button, Then Browse for driver, Then "Let me pick from list" The list should show
Mobile Intel(R) 965 Express Chipset Family ( Microsoft Corporation - WDDM 1.1 )
choose it it move on to re-install the driver.
the display settings window then worked and retained the extended display mode and monitor's resolution settings through a restart.
in response to skeptics: Windows 10 Pro version 1703 is running fine on a Dell Inspiron 1525. 32bit Intel Pentium Dual @ 2GHz with 3GB RAM.
My wife uses it for routine browsing, document/spreadsheet editing and email. It started with Vista and has migrated from 8 to 10 Pro.
The VGA port is supporting a 1920x1200 HP_LA2405wg monitor as well as the laptop screen.