Just as a sanity check, you are not booting with nv_disable=1 correct?
i use a early compatible gtx 780 so no my friend, and adobe have acknowledge an update will be necessary and to hold off or stay on Yosemite for now, Premiere and others will work but will not take full advantage of your gpu and some people will experience adverse effects in El Capitan. So for now Premiere pro is not fully compatible with El Capitan, glitchy graphics, usb, curser, are just a few examples people are having on the adobe forum. Open CL seems one of the main issues and have been told to use software render only for now while people on nvidia should select open GL mercury render but this for now will still not work properly until the adobe update coming later. ps Hope your sanity is restored i can only guess at the level your at, no scrub here lol!
This message below was from adobe...
Peter Garaway Re: El Capitan and Premiere Pro
by Peter Garaway on Sep 30, 2015 at 8:27:30 pm
Hi Steve,
There's a few known issues with OS X 10.11 and Premiere Pro. I would not recommend updating yet. Please keep a lookout for the Premiere team announces those fixes.
Best,
Peter Garaway
Peter Garaway
Adobe
Premiere Pro
OTHER NOTES OF INTEREST....
Premiere Pro CC: After reports of various issues with Adobe Premiere Pro CC in El Capitan, the Premiere team has posted a article on the Premiere blog (Premiere Pro CC and Mac OS X 10.11 (‘El Capitan’)). Product manager Al Mooney says: “We are working hard to resolve these issues in an forthcoming release but currently recommend users remain on OS X 10.10.x.” If you see graphics corruption when running Premiere, a suggested workaround is to switch the Mercury Graphics Engine to software mode, although that disables GPU acceleration.
It is not yet clear whether the above problems will need fixes in OS X or in the Adobe applications. In the past, a number of issues seen in Adobe applications were because of OS X bugs that were fixed by Apple in later OS X updates.
After Effects CC: The Adobe After Effects team has posted an article (After Effects ready for Mac OS X v10.11 (El Capitan)) that says After Effects CS6 through CC 2015 have been tested and no new issues turned up.
Metal: Apple claims that the new Metal API speeds up graphically intensive software. In presentations about El Capitan, Apple used Adobe After Effects as an example, citing an 8x improvement in rendering times. It is not yet clear how real these gains are across Adobe Creative Cloud applications. I’ve seen some on social media misinterpret Apple’s After Effects demo figure as if it means all Adobe software will see an immediate 8x speed boost; that’s a gross over-generalization. On Twitter, Adobe clarified that the Metal demo showed a “preview” of “1 possibility” in After Effects. We should probably not expect widespread Metal acceleration in current versions of Adobe software, but in the future Adobe will probably take advantage of Metal where it makes sense, as they recently have in several applications with OpenCL graphics acceleration.
