@ ingtar33: Yes they do, in fact, they are the exact same monitor. In display settings one offers a max resolution of 1600x900 and the other offers 1600x1200. No, I am using a Dell optiplex 3020 tower. @ nukemaster: I can get resolutions to match at a much lower resolution, but then the picture on both monitors just looks terrible. There is no vga adapter in play here, just a straight vga to vga connection on one monitor and a video port to adapter to dvi connection on the other.
Thanks for you help!
Dell Monitor Video Driver
Issue with MacBook 2018 models with 10.14 Mojave MacBook 2018 models (based on the Intel Coffee Lake chipset) running macOS 10.14 or 10.14.1 can experience black extended display(s) with only mouse cursor. DisplayLink stays available to force an AirPlay extended display on these machines. This is fixed by the macOS. Information about macOS 10.13.4 to 10.13.6 Users of 10.13.4-10.13.6 should use v4.3.x as it contains a workaround to enable one extended USB display. An details how to enable Apple AirPlay with DisplayLink display for extend or mirror mode.
This package contains the monitor driver for Dell E157FPT Monitor model running on the following Windows Operating Systems: Windows XP, Windows Vista, Windows 7, Windows 8. Fixes & Enhancements. Apple Mac OS Windows 7, 32-bit Windows 7, 64-bit. This page contains full list of DELL MAC OS X Monitors available for free download. The drivers in this category is updated weekly, so you can always download the latest DELL Monitors drivers for MAC OS X here!