Incompatible keyboard with the update to El captain

iMac, Retina 5 k screen

16 gig RAM

Fusion 3 t drive

4 ghz core i7

Since the upgrade to el captain, I had erratic behavior constantly with the keyboard when coming out of sleep mode. The keyboard will often freeze and will not let me type my security code. He types too often a lot, a lot, a lot of asterisks. (SE) audit will often require a HARD REBOOT. Really a bad situation, with a connected external hard drive.

Once everything using Aperture 3, he picked up the arrow and moved through images on its own.

I ran repair disk utility, and it reports good condition. Tech Apple had me start in safemode and it seemed any sort of software problem. Since safe mode I run again and he'll leave in SafeMode overnight.

Preferences energy saver could be a problem. When I check the first preference (do not let the hard drives) sleep when the monitor is turned off, sometimes this problem does not occur. But it's really inconsistent.

I el captain on a macbook 17 inches like pro with 4 GB of ram and 500 GB hard drive. So far the problem has not occurred there.

I appreciate any guidance on this issue.

Thank you

Update: I did troubleshooting. Started in safe mode. Back up to the Standard startup. Then started and reset the NVRAM aditional.

NONE OF THIS HAS DONE ANY GOOD. But it has.

When I try to put my security after the sleep code if the keyboard starts with a lot of asterisks, I found that if I turn off the keyboard and then turn again, I can get control of the process and put in my code.

If that sounds like a hardware problem (same mother) or software? Remember that I mentioned in my initial post, I don't have this problem with the old macbook pro.

Thank you.

iMac, Retina 5 k screen

16 gig RAM

Fusion 3 t drive

4 ghz core i7

Tags: Mac OS & System Software

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