However, I'm not sure if it's because of my having to run everything via a third party hub through the MacBook's single USB-C port. To get this to work again, I have to log out and log back in, and then it works again. What happens is if I press the brightness up or down buttons, the icon shows up on screen, but it doesn't budge either direction. However, very occasionally after waking from sleep, the buttons continue to register but don't actually change the brightness. I'm using a 2017 12" MacBook, going through a Cable Matters USB-C to USB 2 + DisplayPort + Ethernet multi-function hub -> no-name DisplayPort to mini-DP adapter -> Apple mini-DP to DL-DVI adapter -> 30" ACD. I have a 30" ACD and it works with brightness buttons on my keyboard in Monterey 12.0.1 (not 12.1).
#Monitorcontrol mac os mac
I am using a M1 Mac mini with a 27” LED Cinema Display (using a USB-C to mini DisplayPort converter and the USB-A connector of the display also connected to the Mac).Ĭlick to expand.Did it work in 12.0.1? Which Mac mini? Do you have the USB cable from the 30" Apple Cinema Display (ACD) plugged in? Are you using the Apple mini-DisplayPort to dual link DVI adapter? If so, the USB plug from the ACD's cable needs to be plugged into the USB port on the dual-link adapter, and in turn, the USB plug on the adapter cable needs to be plugged into the Mac mini. You can try different values to test it out.
![monitorcontrol mac os monitorcontrol mac os](https://2.bp.blogspot.com/-oV0WWqfQLFw/UodcugKLTjI/AAAAAAAACFk/eRu5U7h4nEc/s1600/Screen+Shot+2013-11-16+at+5.22.26+pm.png)
Setting a lower value (by default 100) results in a max brightness of 39%, hence why the display dims initially when using the MonitorControl tool without the advanced setting set. I found that the max DDC of the 27” LED Cinema Display is 255, increasing the DDC value above that will not result in a proper max brightness. I use a DDC setting of 255 instead of 250. See this post for more information/background: MonitorControl GitHub At the bottom of that thread are some screenshots with the required settings. The default keyboard shortcuts also work.
#Monitorcontrol mac os full
This restores the brightness controls over the full brightness range as before.
#Monitorcontrol mac os software
Make sure you turn off the software dimming option too (General tab) and use the hardware DDC setting. Solution: A solution to the dimming problem and regaining control over the full brightness range of the LED Cinema Display on M1 Macs running macOS Monterey is to use the MonitorControl app (latest version 4) and then toggle the advanced settings on the Display tab with a custom max DDC value of 255. I much prefer the LED cinema displays personally)
![monitorcontrol mac os monitorcontrol mac os](https://cdn.macpaw.com/uploads/images/mission-control.png)
(Brightness works with my Thunderbolt version although I get a flicker every now and then. But nope it seems to just be a bug with the M1 Macs. I even reinstalled OS12 because I thought maybe something went wrong. Its not great as its made for older monitors but its doing the trick until its fixed. What I did was max it back out and downloaded Brightness slider from the App Store. UPDATE*** it still just made the default brightness very dim. I did this because when I used one of the third part display brightness controls it would always "think" the first plug in was the default max brightness. that what when I use these eternal brightness controls they work at max=max and min=min. Then when I moved it to my M1 Mac mini it would still be on Max. What I did was plugged it into a Intel Mac that the the brightness still works on and maxed it out. Brightness worked well with 11.6 but in OS12 it will not work. Click to expand.I am having the same issue with my 27 LED Cinema Display.