I've been following a guide for setting up an LCD touchscreen, without success. When the screen is plugged into the GPIO pins it just shows a white screen. After all my attempts it remains white.
Touchscreen driver: XPT2046 (drivers supposedly compatible with those for ADS7846)*
Brand: What brand?
*Used in the linked guide.
Going through these steps twice hasn't had any effect, and several days' googling has failed me. How do I configure the Pi to use this touchscreen? What other details may be useful?