Fixed: MacBook Pro EFI Firmware Update 1.9
 

http://support.apple.com/kb/DL1098

This update seems to have fixed my issues with my MacBook Pro i7. I can unplug/reboot and not hang or crash. :)

No joy here with the latest Snow Leopard updates and the new EFI firmware. Are you booting in 64-bit mode?

This is on a 15" i5 MBPro

I still get snow under certain conditions. Most notably when switching from the Nvidia card with an external display to Intel graphics on the built-in display.

How do you boot into 64-bit mode?

I can't remember how to make it the default, but to do it just once you hold down the 6 and 4 keys while the mac is booting up (before the apple appears). Holding down 3 and 2 forces it into 32 bit mode.

If you want to see what you are currently running open up a terminal and run 'uname -m' -- if it reports x86_64 then you are already in 64-bit mode.

My MBPro might just be cursed, because I have never had any luck even with the workaround of turning off graphics switching.

I do not think I am booting in 64 bit modeI am assuming this is not a default setting as I do not remember ever changing this.

Macintosh-74:~ tim$ uname -m
i386

So I guess I am in 32bit mode.

My computer used to hang when I unplugged one of the external monitors or lock up on boot if the external monitors were not hooked up. I would have to boot into safe mode and uninstall the displaylink drivers. then reinstall them when I went back to my desk and I wanted to use the external monitors. Basically I think what crashed it it before was when the video mode changed from nvidia to intel with the display link drivers installed.

I have a 24 inch monitor on the built in external display port, and a 20 inch (rotated to be vertical) on the Displaylink USB device.

I could get around the issue if I remembered to move my menu bar to the built in display on the powerbook, but I never remembered to this.

I am running 10.6.4 with all patches and the firmware patch. It seems to have eliminated the booting lock up if display is not connected, and the crash if I unplug the displays while the computer is on.

DisplayLinkDriver:

Version: 1.6b2 (24548)
Last Modified: 8/20/10 9:01 PM
Get Info String: DisplayLink Driver 1.6b2 (24548) - Copyright © 2003-2008 DisplayLink Corp. All rights reserved.
Kind: Intel
Architectures: i386, x86_64
64-Bit (Intel): Yes
Location: /System/Library/Extensions/DisplayLinkDriver.kext
Kext Version: 1.6
Load Address: 0x19b2000
Valid: Yes
Authentic: Yes
Dependencies: Satisfied

Hardware Overview:

Model Name: MacBook Pro
Model Identifier: MacBookPro6,1
Processor Name: Intel Core i7
Processor Speed: 2.66 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache (per core): 256 KB
L3 Cache: 4 MB
Memory: 8 GB
Processor Interconnect Speed: 4.8 GT/s
Boot ROM Version: MBP61.0057.B0C
SMC Version (system): 1.57f17
Sudden Motion Sensor:
State: Enabled

GUC2020DW6:

Product ID: 0x0053
Vendor ID: 0x17e9 (DisplayLink (UK) Ltd.)
Version: 0.02
Serial Number: 0053-108892
Speed: Up to 480 Mb/sec
Manufacturer: DisplayLink
Location ID: 0xfd131000
Current Available (mA): 500
Current Required (mA): 500

NVIDIA GeForce GT 330M:

Chipset Model: NVIDIA GeForce GT 330M
Type: GPU
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 512 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0a29
Revision ID: 0x00a2
ROM Revision: 3560
gMux Version: 1.9.22
Displays:
Color LCD:
Resolution: 1920 x 1200
Pixel Depth: 32-Bit Color (ARGB8888)
Mirror: Off
Online: Yes
Built-In: Yes
DELL 2405FPW:
Resolution: 1920 x 1200 @ 60 Hz
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported

No luck
 

Apple Macbook Pro 15" i7 - I get snow on boot after driver install. Have to reboot in safe mode and uninstall. Happy to provide log info if needed. Thx in advance, Jay

Bump. Just seeing if anyone has found success with an i7. My new Imation Link works for *every* other computer in our office but mine!

Thanks in advance, Jay