Error. Was working fine until I put 3 monitors instead of 2.

[2Kbummer]

I am not sure how to link my code directly. Its in my github page.
Traceback (most recent call last):
File "screen_dimmer.py", line 126, in
File "screen_dimmer.py", line 30, in main
File "screen_dimmer.py", line 116, in key_lists
File "screen_brightness_control_init_.py", line 44, in get_brightness
File "screen_brightness_control_init_.py", line 776, in __brightness
screen_brightness_control.helpers.ScreenBrightnessError:
no valid output was received from brightness methods

looks like it takes longer than 3 seconds to run sbc.get_brightness(display=monitor) for this older monitor from 2007. The other 2 monitors are identical.

[Crozzers]

Hi there!

Have you checked that your third monitor supports MCCS (monitor control command set) or DDC/CI (display data channel)? You may need to go into your monitor's on screen menu and enable it.

As for the delay, I'm hoping the above suggestion would fix it, otherwise I don't think there's much that I can do. This library is very dependent on how well the monitor manufacturer has implemented the DDC spec, which isn't always done well.