Mysterious line of pixels

Can I trouble you for the fan control settings you are using? 🙂

This is all foreign to me...

Ok, disregard my request. 🙂 I see in your other post what you put your setting at.

I've installed it and on a whim (before I re-read your info) I set the RMP at 1800. So far, so good. But it's still early and I'm not doing much. Time will tell...

http://ronwessels.com/smcfan_settings.jpg 🙂

Thank you, thank you, thank you. 2 nights in a row I've been using smcFanControl and my MBP has been running like a dream.

It still gets pretty hot (but I understand that's normal for this model), but the fans appear to actually be doing their job now. No overheating, no mysterious lines of pixels, no turbo-sounding fan noise, and no freezing up.

I hope more people with this problem read this post and install smcFanControl.

Thanks again!!!

Ditto for me. Radeon X1600. MB Pro 2Ghz Core Duo. I get the same artifacts and lines and freezes. TechTool Pro 4 says there's nothing wrong with the GPU or anything else, so it may very well be a heat and software related issue. When it crashes, the top near the display is roastingly hot.

I would very much like to find out what's causing it for all of us.

Yep, same here... artifacts and sometimes screen freezes...

Radeon X1600 Driver 2.16 GHz Intel Core Duo Macbook Pro - MacBookPro1,1

similar thing started to happen on my machine shortly after I bought in back in 2006, the most annoying thing was that the lines got stuck in pictures when using iPhoto.... technician ended up changing the logic board and said the GPU (X1600) was at fault

after the change those lines never occurred again

Hi,

you may know the discussion here.

http://discussions.apple.com/thread.jspa?messageID=8507642#8507642

You experience is a proof on concept for our theory discussed there. Did you replaced this thing on guarantee? If you didn't how much did you paid for the board?

goodluck everyone

Hi you,

I have a new guess about that problem!

one my USB-Hubs wracked down today completely. This things are cascaded in 2 levels. I noticed malfunctions using the mouse and keyboard when switching from one machine to another with a Belkin Dual Link Dvi Switch.

by the way i never reproduced the graphics-error we are talking about when i was outside on battery.

The mouse response was as expected by energy problems, unsteady blinking or nothing.

so i plugged that thing directly to the right port and the same happened again.

USB Controller at low energy? i have plugged a lot of devices and hubs which are are supported by power supplies each, but it seems like this. at the other side, low energy on the logic board can cause wired behaviors i expected earlier. That seems possible. i removed all the usb hub cascades and unplugged all the harsddiscs and stuff.

The failure is gone here now . . . ??? unbelievable. I was 1 step away buying a new board at ebay . . . phew!!!!

Test this:

Unplug all your Peripheral things! check out what device is wracking your machine. I hope thats really the problem!

** steady energy support! doesn't seems to be bad turning devices off sometimes.

Please report back here, good luck!

Hi you,

I am sorry but the effects just came back. Today Apple Released a new Patch

http://www.appleinsider.com/articles/08/12/15/applereleases_mac_os_x_10_5_6update.html

including:

Graphics

* Includes general improvements to gaming performance.

* Includes graphics improvements for iChat, Cover Flow, Aperture, and iTunes.

* Includes fixes for possible graphics distortion issues with certain ATI graphics cards.

Hope that helps

I still have this problems with my MBPro after 10.5.6 update. There is no any changes for me.
I still have artefacts like on image http://img187.imageshack.us/img187/9364/picture98rs1.png
😟

Please, help me!

We are all crying for Help so you are not alone,

After applying the patch and hard working and testing the machine:

- The machine didn't freeze till now, ok, i can wait for it.
- no changes after the Update, effecting the other problems Graphics are still, how had apple called it "graphics distortion issues" , yes distorted, very matching description, thanks apple, we couldn't do better. Can not believe we and Apple talking about different problems.

Apple please:

is there a ATI firmware update or can i underclock that thing, is there anything i can do to get rid of the problems? I don't wanna play i need this thing to work with.

thanks

SOLVED!!!!!!!!!

Had the issue and suspected the temperature. Mi wife has the same laptop purchased on the same store same date as mine. Her serial number differs in only one or two digits. My laptop has the abnormalities and my wife's laptop is ok. The only difference is that for unknown reasons her laptop usually works much cooler than mine.

I used SMCFan Control up to 5.5k with no success. Still believed it was temperature related so I re-applied thermal paste and puchased one of those USB powered laptop coolers. The ones that have a couple of fans blowing air to the base. The issue has dissapeared (have not applied osx patch 10.5.6 yet). I don't think the thermal paste did the trick, the cooling base was fantastic dropping the laptop temperature to 40~50 degrees C depending on the load with fans fixed in SMCFan Control at 2000 RPM.

I suggest getting one of these bases and NOT reapplying thermal paste. It is too risky. Hope it helps.

I am also experiencing horizontal lines of pixels and freezing with my Macbook Pro Radeon X1600. I've reapplied the thermal paste, but my problem's still there. Did anyone fix theirs?

Hi you all,

there is a thread out:

http://discussions.apple.com/thread.jspa?threadID=1697470&tstart=0

We are at the and of the discussion yet.

1. Your Logic Board is broken, precisely the GPU is damaged
2. it Heat related but its getting worse over time till your MPB is unusable
3. it will lead to horizontal stripes, CYMK Gradient blocks, Stretched screencontents, at least hangups
4. We have some people in our thread replaced the board by apple care. Only answer: Logic Board replaced due to "distorted Video"
5. Only solution: Replace logic Board

There is nothing u can do about that issue than putting your MBP into a refrigerator and hope.

OR


I am wondering that thru:

http://support.apple.com/kb/TS2377

People with a NVIDIA GeForce 8600M GT and a similar issue got a replacement for free AND they got their money backwards if they already paid for it, before releasing this apple article:

quote:
*Apple is issuing refunds to customers who may have paid for repairs related to this issue. Please contact Apple for details on the refund process.*

Please help and:

1. Join our thread. Everybody of you should post a
"Same here, ATI X1600" Message to get it on moving there

2. Do a feedback about that to apple - click:

http://www.apple.com/feedback/macbookpro.html

there you can send a feedback report to apple. Please do this, write down your problems and paste a link to

http://discussions.apple.com/thread.jspa?threadID=1697470&tstart=0

into it. If there are enough bad feedbacks pointing to our problem, they maybe will start reading this thread.

regards