Grant the non-root user permission to interact with /sys/class/backlight/
Grant the non-root user permission to interact with /sys/class/backlight/
Hi @Nayr438 / @AndrzejL The issue has changed since I last rebooted. It wasn't functioning before, then it stopped after a reboot and now prompts for a password. I suspect Raspbian retains sudo privileges temporarily after the initial command... Any thoughts on why this happens? The added line in the command remains. Updated September 12, 2020 by TheLewisS1
Received a fresh start after updating the rules file and re-executing the commands. Requested a password. The setup functioned after the second run, but I worry it might be due to temporary elevated privileges. Looking up instructions on how to disable it temporarily.
Check if the command is executed with sudo. It may prompt for a password if you're running it as root.
For the sake of pets... I was running as root. That makes sense. Your initial rule solution was correct! Sorry for the mix-up! Thanks again for your kind feedback @Nayr438 and @AndrzejL.