cryptcmer Posted November 10, 2020 Share Posted November 10, 2020 (edited) I have been experiencing a very annoying problem since a week ago or so. After waking up from sleep mode, the screen does not turn on. Although the keyboard and the os works. I have googled it and I have found a couple of people with the same problem, it all seems to point to a new security update Apple released with 10.9.3. NB: A friend sends me this URL https://appuals.com/mac-black-screen-on-wake-after-sleep/ hope the problem will solve. Edited November 17, 2020 by cryptcmer Quote Link to comment Share on other sites More sharing options...
swanduron Posted November 16, 2020 Share Posted November 16, 2020 Please share your hardware and bootloader (Clover and OC) Quote Link to comment Share on other sites More sharing options...
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