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display anomalies

218916 Views 1,117 Replies Latest reply: Jan 6, 2014 8:47 AM by Apple a day RSS
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rami bishara Level 1 Level 1 (10 points)
Currently Being Moderated
Sep 6, 2008 6:23 PM
hello everyone,
ever since the last two os updates, i'm getting these weird anomalies quite frequently,
if i resize the window, they go away

http://img187.imageshack.us/img187/9463/23pp6.png
http://img258.imageshack.us/img258/6839/picture1na5.png
http://img209.imageshack.us/img209/1881/picture2uh8.png
http://img186.imageshack.us/img186/9100/picture12oe2.png
http://img187.imageshack.us/img187/9364/picture98rs1.png
http://img381.imageshack.us/img381/3382/picture123sp6.png

i looked around, but no one seem to be having the similar problem,
my vga is ATI Radeon X1600

thanks in advance,
cheers
mbp, Mac OS X (10.5.4), 2.16 ghz // 2 gb ram
  • Baker2g2005 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Sep 9, 2008 3:39 AM (in response to rami bishara)
    Do you have your MBP connected to an external display.
    MacBook Pro, Mac OS X (10.5.4)
  • Baker2g2005 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Sep 9, 2008 4:16 AM (in response to rami bishara)
    Have you done a hardware test and everything check out just fine.
    MacBook Pro, Mac OS X (10.5.4)
  • StevanE Level 1 Level 1 (5 points)
    Currently Being Moderated
    Sep 26, 2008 8:15 AM (in response to rami bishara)
    Well, it is nice to see that I am not the only one having this problem. At first, I thought it might be a memory problem, so I swapped out both DIMMs. That is not it. The problem persists.

    The other thing I suspected is the GPU heat. Temperature Monitor says the GPU Processor Chip is in the high 60C range as well as the Graphics Processor Heatsink. The behavior seems to start as the temperature rises from the mid-50C range to nearly 70C.

    The one thing you did not note is that the anomalies do not go away when you refresh a page in Safari or any other app. You have to close the window with the garbage and reopen a new window to make the graphics return to normal. By the way, it is not limited to apps, it also happens with wallpaper.

    I have the original MBP from 2006. Any other theories about this would be appreciate as it is annoying and not normal at all.
    MacBook Pro, Mac OS X (10.5.5), Cube, Mini (PPC), many other Macs
  • StevanE Level 1 Level 1 (5 points)
    Currently Being Moderated
    Sep 29, 2008 2:43 PM (in response to rami bishara)
    There are definitely others reporting this same behavior. I had it happen again yesterday when I ran Photoshop for about 30 minutes and the GPU temperature hit 65C.

    Check these other threads.

    http://discussions.apple.com/thread.jspa?threadID=1732374&tstart=15
    http://discussions.apple.com/thread.jspa?threadID=1726184&tstart=30

    I do believe these are all related and have something to do with GPU temp.
    MacBook Pro, Mac OS X (10.5.5), Cube, Mini (PPC), many other Macs
  • 3DArts Level 1 Level 1 (0 points)
    Currently Being Moderated
    Sep 29, 2008 8:33 PM (in response to StevanE)
    I'm experiencing EXACTLY the same problem on my 3.0 ghz dual quad with 30 inch HD display. It only occurred after updating to Leopard. This problem does not affect my powerbook.
    Mac Pro, 8 core, 4 gigs of ram, Radeon X1900, Mac OS X (10.5.5)
  • Spidr Level 1 Level 1 (5 points)
    Currently Being Moderated
    Oct 5, 2008 1:09 PM (in response to rami bishara)
    I have this one also. Mine is a Core Duo 2Ghz MBP with the ATI x1600. Has anyone sorted this out?
    Macbook Pro, Mac OS X (10.4.7)
  • 3DArts Level 1 Level 1 (0 points)
    Currently Being Moderated
    Oct 14, 2008 9:27 AM (in response to rami bishara)
    Same problem, no solutions and getting worse!
    Mac Pro, 8 core, 4 gigs of ram, Radeon X1900, 30" HD Cinema Display, Mac OS X (10.5.5)
  • macuser128 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Oct 14, 2008 3:14 PM (in response to rami bishara)
    Hello,


    *under 10.4 i experienced a green pixel written into the graphic cards ram* (could drag this thing around in a window just as it works with the lines or color boxes)

    this problem was definitively heat related, was linked to massive CPU. It disappeared after cleaning the fan and cooler unit.

    *now i have exactly the same problem since 10.5.*

    i tried:

    - switched RAM
    - cleaned FANS
    - reinstalled OS

    - Heat seems to be ok, around 60° C


    Don`t know what to do, i am out of warranty and a new MBP logic board for my MBP is expensive and still doesn`t take more than 3 GB of RAM so there is no reason to invest in this any more.

    has anybody a solution for that or can anyone point it out to heat related problems? if so i will try tune the temperature by using something like FanControl, increasing the BaseSpeed (i try this at the moment and it doesn`t look so bad) or switch fans and cooling unit.

    looking forward to your auggestions
    MacBook Pro, Mac OS X (10.5.5), strange horizontal lines on display / in memory / dragable
  • macuser128 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Oct 16, 2008 2:29 PM (in response to rami bishara)
    Hi,

    I tried to cool the machine down using fancontrol with increasd base speed, as explained above. It looks like the problem is starting at 54°C (GPU Heatsink) and higher, at 60°C you will get this effect very often.

    *Below 55°C this doesn't happen on my machine*

    I used my mac very much (6 Month ago) and my GPU heat reached up to 89°C with no results like this before.

    First thing under Tiger i expected was that tiny green pixel (4 Month ago), but same effect (dragable failure) what turned me crazy because i could not explain this behaviour.

    now, under leopard (3 Month ago) i expecting the crap explained above, also dragable errors in the Vid Memory. In conclusion one question:

    +Did you used your mac very hard for long times (something like playing WOW, using a renderer, 3D Engine or any kind of this)?+

    Maybe long hot usage of the mac *destroys the heat-conductive paste* and u have to replace it. Maybe the GPU is even hotter than it looks like.

    good Luck
    MacBook Pro, Mac OS X (10.5.5)
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