[tslib] Calibration ignored

[Mike Coombs]

Hi,

I have a problem:
- Raspberry pi 4 running Debian 1:6.12.34-1+rpt1~bookworm (2025-06-26) aarch64
- Adafruit PiTFT2.8-resistive
- X11 selected
- libts-bin is already the newest version (1.22-1+b1)
- libts0 is already the newest version (1.22-1+b1)

ts_calibrate correctly updates /etc/pointercal

Cursor moves in correct direction but
always some small error in position,
getting larger towards screen boundaries.

Regardless of how many times I calibrate
the same error is always there.

pointercal contents seem to be ignored.

If I write:
	10 10 10 10 10 10 65536 320 240 0
to pointercal there is no change in the
cursor movement error.

Where is my bludner?

Best wishes

Mike