running latest SPH-SGMINER .98 version for dark coin & getting no monitor.
rebuild so many times with updated ADL SDL .h files.
290 & 290X GPUs
when using sgminer 4.1.0 (in scrypt), no issues with hardware monitoring, temp, fan.
did you run:
autoreconf -fvi
./configure CFLAGS="-O2 whatever you depend on"
make
??