Mini DisplayPort to Dual-Link DVI Adapter creates jumpy mouse cursor

I hate calling because I don’t hear well on the phone. I don’t know where to submit a problem online. The one time that I tried to use an Apple online help form, about a permissions issue, the online form was only to schedule phone help which doesn’t help me. Major corporations tend to think that hearing impaired people don’t exist. However, this issue withstanding, the Apple DVD player closed captions/subtitles implementation is the best that I’ve ever experienced.

Second Act:

Go here to submit feedback online: http://www.apple.com/feedback/macbookpro.html

Done! (at http://www.apple.com/feedback/macbook.html as I have the MacBook not the Pro).

Another data point. I'm having the same issues:
1) Heat does not seem to be related. A cold machine is just a likely for me to get the 'Fuzz of Death' as I'm now calling it.
2) The mouse jitteriness does not occur in parallel with the 'Fuzz of Death'
3) The mouse, even when not jittery, is FAR less responsive than with just the built-in LCD in use (Dual Link DVI unplugged)
4) I have a Dell 30" Model 3007WP

I have this same issue, I am using a mini display port to dual link adapter. I was seeing this problem with my usb keyboard and mouse. I switched to the apple bluetooth keyboard and bluetooth mouse. The bluetooth setup is having the exact same issues with mouse jumping and system.log entries.

Just adding myself as a datapoint. I also experience the chronic "dp events 0x04" and mouse jumpiness. I have a 2.53 GHz MacBook Pro, OS X 10.5.6 with 30" Apple Cinema display. I've tried all permutations of connecting mouse to machine, with/without hubs, direct, etc.

Has there been any progress on this? Did anyone who submitted logs or calls to tech support/Engineering hear anything back? Any explanation for the multiple system log entries?

My hand is getting tired battling this jumpy cursor on the screen!

As of this very morning the Apple specialist who was helping me a few weeks ago called me with an update. He said that the engineers were aware of the problem, that it WAS widespread enough to take seriously, but not so widespread that there wasn't an expectation that replacement equipment wouldn't solve it. He set up an exchange for my laptop AND adapter. I asked him about it and he said that both of them needed to be replaced for there to be an expectation of success.

He had to ask me some questions, but they were a mere formality. I guess it's all good since I'll get an extra month warranty on my laptop, and of course, the hope that this will be fixed, but it's definitely a hassle since I just transferred all my data on to this one mere weeks ago.

Anyhow, that's my update....maybe they're not all bad?

wanderinghome:

While I wish you luck, you should keep in mind that I have tried two different MacBook Pros, two different 30" Cinema Displays, and two different adapters. Based on this, I'm convinced that this is a software issue or an inherent problem with the design. I think it's most likely software because the cursor is fine under 10.5.5.

It works fine when booted into Windows. Not. A. Hardware. Problem. I’m amazed on how much this bothers me and my aching hand now.

Second Act:

I just gave up and reinstalled 10.5.5. It works fine now and the writes to the system log are gone. This is obviously a software issue.

I'm missing out on whatever fixes were introduced in 10.5.6, but I just can't live with a jittery cursor.

I have NO doubts that you're all right, but worst case? I get another month of Applecare warranty, I'm eligible for the $10 iLife '09 upgrade, (I don't need it but I know someone who can), and MAYBE, if they announce it in time, a matte screen.

So I win either way, although OBVIOUSLY I hope the jitteriness goes away more than I hope for the rest.

If it persists, I'll call Applecare, tell them about it, and downgrade to 10.5.5.

Interestingly, it says right on the box of the adapter that it Requires Mac OS 10.5.6. I wonder why that is. I'm back on 10.5.5 and it seems to be working OK.

Grrrr... I can't stay with 10.5.5, because the new iLife and iWork require 10.5.6.

Back to the jumpy cursor for me. Apple, PLEASE fix this!!!

Although Apple has not fixed this yet, I have learned some interesting things. While on the phone with Apple, they had me run a Data Capture program to collect info about my system to send back to them.

While running the application, I had Console open so I could look at the system log. To my surprise, after running this application, the repeating dp events: 0x04 completely stopped and the mouse cursor behaved normally. The mouse continued to behave normally until I put the computer to sleep and woke it up again.

In summary:

1) The dp events: 0x04 messages are present when the mouse skips and not present when it doesn't. This seems like proof that the muliple writes to the system log are what make the cursor skip.

2) Running Capture Data.app (from the Apple tech) runs a handful of scripts that not only capture data, but also kills the dp events for some reason.

I have verified this four different times and reported my findings to the Apple tech I was speaking to.

Can anyone else who receive the data capture program from Apple give this a shot? Just have Console open and look at your system log before, during, and after running the program. Perhaps you'll see as I did that the dp events go away and your mouse works right (at least until sleep).