I have the following in /etc/X11/xorg.conf.d/99-calibration.conf, as sudo adafruit-pitft-touch-cal produced it:
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Option "SwapAxes" "1"
Option "InvertY" "0"
Option "InvertX" "1"
Option "Calibration" "0 320 0 240"
...to match the 270 degree rotation I have the PiTFT configured for, but this configuration never appears to be picked up. When I use the touchscreen, the pointer appears confined to a very small area at the top left of the screen, and moves on touch-drag in the wrong directions (i.e., as if the screen were not rotated/these options not applied).
I suspect this may be because I've installed X myself on top of Jessie Lite to keep my server image small - is there a particular package I need to install to make this configuration work? Or, if not, does anyone have any other thoughts as to what my issue might be?
Thanks in advance,