![]() There are some issues with certain Mac models which freeze when attempting to read the current brightness of the external display. Unfortunately, there is not much that can be done to remedy the situation. ![]() Most displays do, but there are some issues with Samsung displays (and possibly others), which do not implement the standard correctly. For the app to work, your display needs to support the DDC/CI standard properly. CompatibilityĮxternalDisplayBrightness uses the DDC/CI standard commands to control the brightness of external displays. This behavior is also customizable in the app's preferences. There is also an option to control the brightness of all connected displays simultaneously, by default triggered by using the keyboard shortcut in combination with the Command modifier. When pressing the keyboard shortcut in combination with Option + Shift, the brightness changes in smaller increments, just like on a real Mac. You can customize the keyboard shortcuts for the brightness actions to any of the F1 - F20 keys or the brightness keys on the Magic Keyboard (listed as MK_BDN and MK_BUP in the preferences).īy default the application takes over the default brightness keys on a Mac keyboard, which are mapped to F14 and F15, respectively. To completely quit the app, use the Quit button in the window. the app keeps listening for keyboard shortcuts when you close the preferences window. to access the preferences, simply launch the app again using Launchpad or any other method, and the preferences window will open. The app runs as a hidden agent app, silently listening for keyboard shortcuts. Grant the permission and relaunch the app for the change to take effect. Usageĭuring the first launch, the app will request permission to use accessibility services on your Mac to listen for keyboard shortcuts. To install, download the latest release, open it and drag ExternalDisplayBrightness.app to your Applications folder. InstallationĮxternalDisplayBrightness supports macOS 10.13 High Sierra and newer. I wanted to make something simple which would Just Work™ and you could forget it's even there. There are a bunch of similar projects available, but they feel hard to use and are cluttered with too many options. This is a small summer project which I did to get some practice with developing Mac apps. GitHub repo DownloadĮxternalDisplayBrightness is a small utility which allows you to change the brightness of external displays connected to your Mac using keyboard shortcuts, just as you would change the brightness of the built-in display on a Macbook. If you’re still having trouble adjusting the brightness on your Windows 10 machine, post a comment here and let us know the details.ExternalDisplayBrightness | František Nesveda František Nesveda Projects About Contact ExternalDisplayBrightnessĪ Mac app to control the brightness of external displays using keyboard shortcuts. Otherwise, the screen was always dim, even with the brightness turned all the way up. I had the same issue on a Lenovo IdeaPad P400 and I had to install an older driver in order to make the screen brighter. However, sometimes an older driver works better. Then just check every so often to see if there is a new driver and install that when it becomes available. The brightness level remained at the level I had set it, so that was good. In my case, I simply switched to the basic driver, adjusted the brightness to where I needed it and then switched back to the original manufacturer driver. Unfortunately, you won’t be able to run the OS at the highest resolution or frame rate if you use the basic driver, but at least you can adjust the brightness. ![]() You can try some of the other ones, but if nothing works, just use the basic driver. You might have play around and pick a different ones and see which works for you, but the safest will always be Microsoft Basic Display Adapter.ĭepending on your system, you may see several drivers listed in the box, even the same driver listed multiple times. Now you want to choose a different driver for the graphics card. We’re almost done, so keep going! Now go ahead and click on the Let me pick from a list of device drivers on my computer button at the bottom. You want to choose the Browse my computer for driver software option. Now go ahead and click on the Driver tab and then click on the Update driver button. It’ll depend on what kind of graphics card you have installed, but there really should only be one or two listed max. It could be something like Intel HD Graphics, etc. Next, expand Display Adapters and then right-click on the graphics card installed on your system and choose Properties.
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