Touchscreen Stopped Working


My touchscreen was working fine on the BBB until recently. Now, when I touch the screen it moves erratically and seems to select an area rather than move to a point. When I check with evtest, it gives readings. It seems to give valid coordinates for the 4 corners of the screen and where ever I touch. I tried it with the BB White and everything all works fine. With ts_calibrate on the BBB, it doesn’t detect any touches. I’ve also done export TSLIB_TSDEVICE=/dev/input/event1. I loaded the latest image BBB-eMMC-flasher-2013.06.06, it made no improvement.

Since the touchscreen works fine on the Beaglebone White and I can get coordinates from the touchscreen in the BBB, it seems that the hardware is OK. However the software may be missing some configuration or I need to export something else. Anyone got any ideas?