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My favorite Mac shortcut is now option-command B, which I connected to an automator app which changes my external monitor brightness. It calls ddcctl which is

My favorite Mac shortcut is now option-command B, which I connected to an automator app which changes my external monitor brightness. It calls ddcctl which is a command line script which communicates over the displayport connection to control the monitor. This is a huge improvement over the annoying on screen monitor menu!

vikbytes 6y ago
This sounds like something I'd find very useful, do you mind sharing a link on how to set this up or where I can find more information on this? Thanks!
- davea37 6y ago
  MonitorControl achieves the same thing but using the existing keyboard keys: https://github.com/MonitorControl/MonitorControl https://github.com/MonitorControl/MonitorControl (recent discussion on HN: https://news.ycombinator.com/item?id=23785291 https://news.ycombinator.com/item?id=23785291)
- roland35 6y ago
  I did this before learning about other tools! But you can download ddcctl from GitHub, then create an automator "quick action" with no input from any application. Then I created a flow of "Ask for text" (brightness), "run shell script" (/path/ddcctl -d 1 -b "$1/" Once you have that saved you can go to your Mac keyboard settings and add this new automator app as a new shortcut! Or, use an existing app :)
gargs 6y ago
Try Lunar https://lunar.fyi/ https://lunar.fyi/ Love it!
TwistedWave 6y ago
I use an USB light sensor to automatically adjust the display brightness with ddcctl. http://www.yoctopuce.com/EN/products/usb-environmental-sensors/yocto-light-v3 http://www.yoctopuce.com/EN/products/usb-environmental-senso...
ydant 6y ago
Thank you for that! The built in Mac display brightness controls only seem to work for the Apple Cinema Displays - they do nothing on my Asus monitor. I just tried ddcctl ( https://github.com/kfix/ddcctl https://github.com/kfix/ddcctl ) - and it worked perfectly over HDMI through a HDMI switch. I didn't even know what to look for - so this comment was a lot of help.

vikbytes 6y ago

This sounds like something I'd find very useful, do you mind sharing a link on how to set this up or where I can find more information on this? Thanks!

davea37 6y ago
MonitorControl achieves the same thing but using the existing keyboard keys: https://github.com/MonitorControl/MonitorControl https://github.com/MonitorControl/MonitorControl (recent discussion on HN: https://news.ycombinator.com/item?id=23785291 https://news.ycombinator.com/item?id=23785291)
roland35 6y ago
I did this before learning about other tools! But you can download ddcctl from GitHub, then create an automator "quick action" with no input from any application. Then I created a flow of "Ask for text" (brightness), "run shell script" (/path/ddcctl -d 1 -b "$1/" Once you have that saved you can go to your Mac keyboard settings and add this new automator app as a new shortcut! Or, use an existing app :)

gargs 6y ago

Try Lunar https://lunar.fyi/ https://lunar.fyi/ Love it!

TwistedWave 6y ago

I use an USB light sensor to automatically adjust the display brightness with ddcctl. http://www.yoctopuce.com/EN/products/usb-environmental-sensors/yocto-light-v3 http://www.yoctopuce.com/EN/products/usb-environmental-senso...

ydant 6y ago

Thank you for that! The built in Mac display brightness controls only seem to work for the Apple Cinema Displays - they do nothing on my Asus monitor. I just tried ddcctl ( https://github.com/kfix/ddcctl https://github.com/kfix/ddcctl ) - and it worked perfectly over HDMI through a HDMI switch. I didn't even know what to look for - so this comment was a lot of help.