GPU Restarts / Logged out of account 960GTX El Capitan

[DJLunacy]

I've been trying to track down the exact cause and reason for these Kernel Panic / GPU restarts for a while.

MB: Gigabyte-GA-Z77X-UD5H - Video Card: Gigabyte 960GTX 2GB / Running 10.11.3 / Latest Build Of Clover as well as the nVidia Web Drivers.

Sometimes I can run the machine for a couple of hours depending on usage. Others it can be 5-10 minutes if I'm quickly switching windows/tabs or try resizing a window book.. GPU resets and I have to log back in.

I've read through a lot of posts and suggested ways to fix this issue and can't seem to nuke it for good.


Here's a couple of the errors I pulled from the log: This was right before the 10.11.3 upgrade, but the issues are still happening.

Event: GPU Reset
Date/Time: Mon Feb 1 05:48:58 2016
Application: WindowServer
Path:
OS Version: Mac OS X Version 10.11.2 (Build 15C50)
Graphics Hardware: NVIDIA Chip Model
Signature: 20

Report Data:

NVDA(Graphics): Channel exception! Exception type = 0x20 DMA Engine Error (PBDMA Error)
Channel Info: [7, 0xe, 0x2, 0x6997df]
Version Info: [com.nvidia.web.GeForceWeb, 10.0.9, 0x5e5f4c655b, 20253640, 346.03.04f02, 1]

Resource Manager Info:
4443564e 000000d0 59d9f075 f150994f 00000001 00000014 d3793533 46d3a4a6
4614f297 e71edccf 00088301 00000099 12f2210a 081c0a1e 1002e397 20001810
30002800 2aa83800 482aa840 58005000 0a00601d 00149a03 13820c0a 50031809
90004801 3d0a0101 0a3a1392 00002438 00000e00 00e00100 00224900 00000100
00124900 00000000 01044700 0000ff00 0000ff00 0000ff00 0000ff00 0000ff00
0000ff00 c2220a00 00081f13 a8180010 0bf7a080 20280e20 00380330 9b95a850
4fd7a696 48028040 00000012 4443564e

Accelerator Event History:
0a0808001a04080010010a0808001a04080310010a2a0800122608bc80021080ece1ce
87f0ffffff0118c18dc08efc80800720a0bf8180b0f41728e0afa683200a230800121f
08c080021080ece1ce87f0ffffff0118c18dc08efc808007208180800828000a080800
1a04080310000a0808001a0408001000

Mon Jan 25 11:34:07 2016

Event: GPU Reset
Date/Time: Mon Jan 25 11:34:07 2016
Application:
Path:
OS Version: Mac OS X Version 10.11.2 (Build 15C50)
Graphics Hardware: NVIDIA Chip Model
Signature: 0

Report Data:

NVDA(DMA): Channel timeout!
Channel Info: [9, 0xe, 0x7, 0x494f08]
Version Info: [com.apple.GeForce, 10.0.8, 0x7d780b0a, 18894120, 310.42.15f01, 1]

Here's some info on the setup.

iMac 13,2

Model Name: iMac
Model Identifier: iMac13,2
Processor Name: Intel Core i7
Processor Speed: 3.40 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 8 MB
Memory: 16 GB
Bus Speed: 400 MHz
Boot ROM Version: IM131.010A.B05
SMC Version (system): 2.11f14
Serial Number (system):
Hardware UUID:

NVIDIA GeForce GTX 960:

Chipset Model: NVIDIA GeForce GTX 960
Type: GPU
Bus: PCIe
Slot: Slot-1
PCIe Lane Width: x16
VRAM (Total): 2047 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x1401
Revision ID: 0x00a1
ROM Revision: VBIOS 84.06.0d.00.77
Displays:
EQ276W DVI:
Resolution: 2560 x 1440 @ 60 Hz
Pixel Depth: 32-Bit Color (ARGB8888)
Display Serial Number:
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported


Thank You In advance for any help guys!

 

[kwlgoal]

I got the same problem. Im using GT640 and the latest NVIDIA Web Driver

Event:               GPU ResetDate/Time:           Wed Feb 10 08:48:06 2016Application:         WindowServerPath:                OS Version:          Mac OS X Version 10.11.3 (Build 15D21)Graphics Hardware:   NVIDIA Chip ModelSignature:           20
Report Data:
NVDA(Graphics): Channel exception! Exception type = 0x20 DMA Engine Error (PBDMA Error)Channel Info: [6, 0xb, 0x2, 0x9b5]Version Info: [com.nvidia.web.GeForceWeb, 10.0.9, 0x5e5f4c655b, 20356384, 346.03.05f01, 1]

 

[tomchak]

I have found several posts that mention this problem but no solutions yet.

@DJLunacy, did you ever find a solution?

What worries me is that because I'm not finding any solution anywhere that works, maybe this is a problem that can't be fixed.