In an attempt to solve the a problem with VLC Video player's inability to play many files, I read that installing a proprietary video driver would likely fix the problem. I let Manjaro Hardware Detection install a proprietary ATI driver. After rebooting, my second monitor now simply mirrors my main monitor.
When I used the free video drivers, upon bootup I could choose how the displays would work. Now upon bootup, no such option is provided. Also, when I choose "Displays- Manage and Configure Displays", there is no option use both displays separately.
When I tried to remove the proprietary driver, an error message appeared:
Error: pacman failed! Error: script failed!
I do hope someone can help me get out of this mess. How can I get my wonderful dual monitor system back and running?