Sep 16, 2007  I have the same sort of experience. For the most part all the keys on the new keyboard work as expected. F1 and F2 (screen brightness) did nothing. I have a 22' second monitor plugged into my Macbook Pro mirroring the laptop screen. If I turn off the mirroring, then the brightness keys on the new keyboard control the Macbook screen. Tools and Fixes for Mac, iPad, iPhone & iPod. We wish there was an easier way to access auto-brightness. It would have been handier if one could.

Click to expand.The following is a crosspost from the Apple Forum - just in case someone like me did the trick, losing both brightness sliders due to cache and PRAM: I can confirm that this solution brought back the missing functionality - thanks a lot for sharing this information. To whom it may concern: the first time I tried this hack, BOTH monitors lacked the brightness slider, even after copying back the original 10.9 ktext files! It turned out that I had to delete the boot caches (used the 'Onyx'-software for this) and the PRAM to get it going.

Now lets hope that we don't need to repeat this fix every minor update. I know those screens have been around over 10 years and some of you guys are being pretty smug and calling them legacy screens, but the 23' ones are still better monitors than a lot of the 1920x1080 eIPS garbage on the market. The most amusing part is that a very popular Windows program for controlling Apple display brightness () takes up about 1mb. And that's a freestanding windows program with a GUI, hotkey controls, everything. The program just got updated to support 20'ers a few months ago too. Curiously, the resale value of DVI to ADC adapters is still really good on ebay, too.

Perhaps because the ADC cinema displays are really cool looking, unlike the current stuff? I get the idea someone at Apple really wants these in a landfill, and that's too bad. 'New' solution With the release of 10.10 Yosemite the kext re-install hack seems to have ended, when I try my system works much more slowly and has random crash issues.

I have found another workaround that requires a Windows virtual machine to be installed on the computer. I know it works with Parallels but may work with others. Maybe, just maybe if we start asking the dev, he'll work to create a Mac version or work with a Mac developer to create one. I don't know the guy, I just found the app and donated $20 to him for his efforts. With the release of 10.10 Yosemite the kext re-install hack seems to have ended, when I try my system works much more slowly and has random crash issues.

Partition a Hard Drive for macOS Time Machine and Windows 10 Backups. Select the Mac partition we created in Windows 10. To save back up on the same hard drive. Win 10 continues to ask to. How to Partition an External Hard Drive on Mac. If you want to create multiple partitions on your external hard drive (in fact, you should for better file organization), here’s a step-by-step guide: Step 1: Highlight your drive and click “Partition” in Disk Utility. Open the Disk Utility app and highlight your external hard drive. How to Format an External Drive in OS X. Connect the drive to the Mac. Select the drive you want to format. Connect the drive to your Windows PC. Right-click on the external drive's partition or unallocated space you want to format and choose New Simple Volume. Follow the wizard to choose a volume size. For Windows 7 and Vista users: Right click the same partition and select 'Delete Partition' from the menu. You should now see the partition as unallocated space. The partition should be highlighted on the top with a black bar, as opposed to a purple bar for the other partitions. Perhaps you want to partition your Mac to run Windows. There are several reasons why you might want to partition your Mac's hard drive. Historically, the most common was to separate the Mac's.

I have found another workaround that requires a Windows virtual machine to be installed on the computer. I know it works with Parallels but may work with others. Maybe, just maybe if we start asking the dev, he'll work to create a Mac version or work with a Mac developer to create one. I don't know the guy, I just found the app and donated $20 to him for his efforts. It may be the obvious solution (as well as the only one -- which worked for me, though not convenient for everyone): I connected my old Apple Cinema Display to my old Mac running a pre-10.9 system, which allowed me to successfully turn up the brightness to the maximum level. Then I connected the display back to my new Mac mini, installed an App called 'Shades' (there seems to be alternatives available, all for free or next to no cost), which allows me to dim the brightness to my desired level, and subsequently adjust it as desired.

'New' solution With the release of 10.10 Yosemite the kext re-install hack seems to have ended, when I try my system works much more slowly and has random crash issues. I have found another workaround that requires a Windows virtual machine to be installed on the computer. I know it works with Parallels but may work with others. Maybe, just maybe if we start asking the dev, he'll work to create a Mac version or work with a Mac developer to create one. I don't know the guy, I just found the app and donated $20 to him for his efforts. The following is a crosspost from the Apple Forum - just in case someone like me did the trick, losing both brightness sliders due to cache and PRAM: I can confirm that this solution brought back the missing functionality - thanks a lot for sharing this information.

To whom it may concern: the first time I tried this hack, BOTH monitors lacked the brightness slider, even after copying back the original 10.9 ktext files! It turned out that I had to delete the boot caches (used the 'Onyx'-software for this) and the PRAM to get it going. Now lets hope that we don't need to repeat this fix every minor update.