I have an older 24" Cinema Display that I was using with my soon-to-be retired MacPro & I would like to use it with my new 21.5" iMac. I have a StarTech USB-C to Mini-Displayport adapter. I do get an image but it is extremely dark. Everything else seems to work OK through System Prefs.
It is unusable as dark as it is.
What can I do to adjust the brightness (& possibly other variables)?
Thanks!
Frank
iMac 21.5", macOS 10.14
Is the displays USB cable plugged into the computer? Brightness control is via USB.
macOS Sierra: Adjust your display’s brightness
Also try the keyboard brightness keys while pressing the Option key.
Is the displays USB cable plugged into the computer? Brightness control is via USB.
macOS Sierra: Adjust your display’s brightness
Also try the keyboard brightness keys while pressing the Option key.
Perfect! I had not plugged in the USB as I thought it just acted as a hub for the USBs on the Cinema Display.
Wow! Gives me plenty of space to work with now.
Thanks so much Malcolm!
Frank
24" Apple Cinema Display with 2019 iMac
