Mac Pro keeps logging out since El Capitan

HI Kwizim,

i read your comments. I am also having a same problem., I installed the El captino yesterday and I am only on the log in page. I enter my password and again it goes balance for 2 minutes and Brings me to the same log in page. What do I do, if you can assist.

will this erase my data in my hard drive. I am so much worried about my data.

indont know that to do next.

Wiped the drive and reinstalled Yose. Now everything is functioning again. Really do not have the time to waste being Apple's debugging experiment. They have money, they should spend some of it on EC because it is a lemon. This adventure cost me about 8 hours of my time. Times several thousand people and there they have wasted some work years! Thanks, Apple CEO!

You can keep EC, but only with your monitors connected to ONE video card. Unplug any monitors from a second video card and EC will work. Can NOT run two video cards with EC- it will crash every time. If you need two cards, then you have no option but to dump EC and go back to Yose. Transfer ALL of your date to a backup drive. You will have to wipe the EC drive. Cannot install Yose over EC.

I can use two cards OK with the new Nvidia drivers and not using seperate spaces and one monitor on each card

Theodore Stacy wrote:

You can keep EC, but only with your monitors connected to ONE video card. Unplug any monitors from a second video card and EC will work. Can NOT run two video cards with EC- it will crash every time. If you need two cards, then you have no option but to dump EC and go back to Yose. Transfer ALL of your date to a backup drive. You will have to wipe the EC drive. Cannot install Yose over EC.

Aman Bro. About Apples shoddy programming. I had same problem a couple years ago with 2 video cards. They fixed it then. I called Apple support and got a knowledgeable person that said they will forward my problem to the programmers. That's better than the last time when the guy said I didn't need 2 video cards. I suppose I didn't but they sold it to me that way. And I want to use it that way. I had it this time and got rid of the mission control option. Plus all my startup apps. Plus upgraded nvidio cuda driver. the only thing that seemed to fix it was the mission control option. Apple must be trying to make the OSX & IOS desktops the same. Very dumb idea. Different type of users. Oh well I hear Windows 10 is getting better.

Just a quick post to add another voice to the discussion and keep this problem visible.

I'm using a Mac Pro early 2008 with a GT-120 and a (reflashed PC) HD5770. Three monitors and a Wacom Cintiq 13HD connected; normally seeing two to three crashes to login a day (normally at the most inconvenient time possible).

Extremely annoying - the early 2008 is showing its age but it's still a fantastic workhorse... hoping for a solution other than 'buy a new computer'!

What drivers are you using? Nvidia replaced new drivers 10/6

Do you have Use Separate Spaced checked in Mission Control?

two Nvidia GT 120

Mac Pro early 2009

Separate space is off

new drivers from Nvidia installed October 6 release

Running one card is two slow for rendering was slow with 2 cards.

Only fix until code re-write is going to be re-install of Yose if you want to use more than 2 monitors. I did a clean install of Yose and now have my 4 monitors back. EC is limited to 2 monitors at least on older systems. One or two cards, makes no difference it seems. I had 2 on one card. Going to other card resulted in constant crashed. It is not the drivers - I installed the updates. It is the basic coding for how EC handles video from multiple inputs and parses that out. Too bad, Nice idea..

Did anybody try OSX 10.11.1 beta 3 in this configuration (Mac Pro (early 2009) and two screens on two graphics cards (or similar)? Just hoping that maybe the log out issue got fixed there.

I just installed 10.11.1b3 and I still see the problem, yes.

I was happy to find a response from Apple to my bug report today. No solutions, but asking for more information, which I gave them. Hopefully that means we'll see a fix!

I should have been more clear. Can't have more than 2 monitors regardless of multiple cards, although on my early 2008 mp, 2x quad, EC just blanked the second card after batting around some garbled video. EC then just stopped feeding video out of card 2 and went into the reboot loop. 2 monitors on one card worked AFTER unplugging all monitors from card 2, that got EC working. But I have 4 monitors. Only solution was a clean install of Yose. Got my cards back and my 4 monitors. Will not use EC again unless Apple turns loose some cash and hires qualified programmers who can put out a quality product across the line. Caveat, maybe it's not the programmers! Could just be Apple's software management and marketing wanting to sell new machines by designing in a bug that trashes older machines. That's happened before- new systems obsolete the old machines incrementally. EC reflects Apples move toward integrating its OS across the line, mostly single or dual screen. Maybe it works on the new MPs and single screen machines, but I'm not shelling out 000s to get EC on a MP. Yose did the job as does my present cpu. For that matter, I could boot my old monster to Windows 10. My MBA running EC syncs fine with Yose running on the MP as does my iMac running EC. The MP puts up good numbers and does what I need it to do, so I'll keep it. Maybe in a year or two Apple will fix EC. I'm not wasting more time on it. If I just wanted a dual screen, I could just buy a thunderbolt adapter for the MBA and dump the MP. For that matter, I can run dual on the iMac. But I bought the MP for the real estate, and EC does not allow it, so it's back to plan one = Yose with 4 monitors.

You stated ". EC then just stopped feeding video out of card 2 and went into the reboot loop. "

Are really talking about rebooting? The problem discussed here is logging out, not rebooting.

It quite possibly could be be a reboot. While the majority of my errors were logouts, there were also some kernel panics resulting in a restart.

For me, since switching off separate spaces, the problem has not reoccured.

All drivers inc cuda have been updated etc, problem is instantly reproducible when s.spaces are turned back on.

Nvidia geforce 285 x 1 monitor and whatever the default card is x 2 monitors.