I've found the same problem as ukki. $ /opt/qspot/bin/qspot > set_stream 'QSpot' FATAL ERROR: Could not initiate session. Error reason: "Unable to open trace file" Segmentation fault ~ $ I've deleted (moved away) /home/.config/qspot/qspot.conf and the result is the same, and file is not re-created. So I've created an strace output file for you to be able to debug better this behaviour. ~ $ strace -o MyDocs/qspot.strace /opt/qspot/bin/qspot (attached, gzip compressed, qspot.strace.gz) Thanks for this great app I use almost every day! Rafa.