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When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.
I can't adjust the brightness of my LG Ultrafine 23.7 4k monitor after upgrading to macOS Catalina. Before the upgrade, I could hold control and use the brightness slider on my touch bar to adjust the LG Ultrafine display.
I fixed it by unplugging the thunderbolt cable from my mac and plugging it in again.
I fixed it by unplugging the thunderbolt cable from my mac and plugging it in again.
Can't adjust brightness of LG Ultrafine 23.7 4k monitor after upgrading to macOS Catalina
