> log-level error I tried. I've just solved the problem. This is not a directive in brltty.conf but an command line option (-l or --log-level). As I've already used an option in my bootscript, I added this (-l error) and it works. That's to help others: add option -l in commandline, not as directive in brltty.conf (unknown in brltty 4.1). Regards, JPM