Home › Forums › Macs › Desktops › Mac Pro › “Headphones” does not work…This topic has 4 replies, 2 voices, and was last updated 7 months, 3 weeks ago by Robert.Viewing 5 posts - 1 through 5 (of 5 total)AuthorPosts RobertParticipant1st October 2021 at 3:51 am#1411591Hi Charles Thank you very much for providing a new OC again, so that cMP can continue to work. I replaced the new OC and upgrade to 11.6, But found that there is only one output left in the “Sound”,”Headphones” does not work, see the picture. What steps do I have wrong, help me please, thank you!Attachments:You must be logged in to access attached files. CharlesKeymaster1st October 2021 at 8:13 am#1411595Hi Robert.Ah okay, that’s odd. Do you know if it was working after installing the update opencore before updating macOS? RobertParticipant1st October 2021 at 8:42 am#1411603Hi Charles. Yes, before this update, I always used the OC version you released in November 2020, and everything will work. CharlesKeymaster1st October 2021 at 9:49 am#1411604Appears to be fine for me on 11.6. Did you use the single or dual socket EFI? Also which graphics card do you have please?1 user thanked author for this post. Robert RobertParticipant2nd October 2021 at 5:10 am#1411640I used the old steps to solve the problem, format the hard disk, reinstall the system (10.13>10.15>11.6), after many hot restarts, now it takes more time to install various applications. This new OC version has a great experience, and thank you again for helping me find the problem.Attachments:You must be logged in to access attached files.AuthorPostsLog in or Register to leave a commentLog In Username* Password* Stay signed inLog In Forgotten your password? | Register an account