Currently Being ModeratedAug 17, 2012 7:14 PM (in response to Pete_in_Denver)
Before downgrading try dragging the logic control surface preferences out of the library and re scan and set up the logic control over again.
Currently Being ModeratedAug 17, 2012 7:16 PM (in response to Data Stream Studio)
I have deleted/readded it several times - no joy. It almost seems as only the output traffic is getting to the controller, but I nixed that when the play/stop buttons showed as working.
Currently Being ModeratedAug 18, 2012 4:03 AM (in response to Pete_in_Denver)
You can't really install Lion back on top of Mountain Lion and keep all your apps etc. You'd have to do a clean install of Lion and then re-load all your apps etc.
Alternatively, you can just go to your backup/image of your Lion install and reinstall that to be back where you were within 40 minutes.
Currently Being ModeratedAug 18, 2012 5:49 PM (in response to octopi)
Turns out that the problem REALLY WAS MOUNTAIN LION!
I had a clone of my Mountain Lion disk in my Mac Pro. I do a full clone every night, so I booted from that, and erased my primary disk.
Then, I used Time Machine to go back to just before I installed Mountain Lion and then booted from the Lion DVD that I had made when Lion launched (see Google for this). I recovered to my erased disk, and 2.5 hours later I had a full 10.7.4 system up and running on my primary disk. This WORKS!!! I have just tried Logic, and the problems I was having disappeared. The Mackie Control surface is now responsive, and I'll bet Logic doesn't run away anymore either. Great tools - Carbon Copy Cloner (I'm a registed user) and Time Machine saved my butt.
Currently Being ModeratedAug 19, 2012 12:23 AM (in response to Pete_in_Denver)
Cool.... somebody else who clones their disk, I'm on a twice a week schedule but I understand cloning every evening. Good to hear you got it up and running.
Currently Being ModeratedAug 19, 2012 9:28 PM (in response to Pancenter)
Let's call it paranoia ;^} It doesn't take much effort with Carbon Copy Cloner, and it has saved me more than once... Rolling back to Lion was the right thing to do - almost all the ills I was experiencing went away, including the worst, which was the failure to communicate with the Mackie Controller (in Logic mode). It seemed to work on the output side (would get labels and such to the Mackie), but no input response. Ack!
Currently Being ModeratedAug 20, 2012 11:04 AM (in response to Pete_in_Denver)
Looks like I'm going to have to roll back to Lion too (score another one for CCC).
This will actually be the first time I've ever had to roll back to a previous version of OS X - quite disappointing. But Logic is sadly unusable for me right now due to the UI lag; everything else is working fine, but trying to tweak a parameter and having it respond ten seconds later just isn't very practical...
Currently Being ModeratedAug 20, 2012 11:28 AM (in response to Miles Fender)
I used CCC to keep a copy of ML off to the side. I then erased my primary disk, booted off of the Lion DVD I made, and then used Time Machine to recover from last backup before ML.
I then used CCC to clone copies of both L and ML for safety. Belt and suspenders I say (I'm in the storage business).