Having difficulty with the monitor displaying anything other than black and white lines, even after changing the config.txt file in the latest version of NOOBS in os/Raspian/boot/config.txt according to guidelines: https://learn.adafruit.com/adafruit-5-800x480-tft-hdmi-monitor-touchscreen-backpack/raspberry-pi-config.
I am using a Raspberry Pi 2 Model B. The usb power and hdmi cables for the monitor are from Adafruit, and are very short. the power supply is a NorthPada USA Micro USB Mains Power Wall Supply Charger 5V 2000mA.
Both a mac-formatted SD card and the Raspberry Pi pre-installed card had the same effect, so I don't believe it is a card issue. The monitor listed above is also the second monitor that I tried, so I've also ruled out the monitor as the problem.
The ACT light flickers but not for an extended period of time, and not in a particular pattern.