1 3 4 5 6 7 Previous Next 308 Replies Latest reply: Jul 1, 2008 11:36 AM by NEO_Sweded Go to original post
  • 60. Re: Graphic Glitches
    resistor Level 1 Level 1 (0 points)
    Why does how they were able to replace it so quickly make any difference to the validity of it? I took it in, the Genius looked at it and saw the same corruption I did. He went to the back, found that they happened to have a replacement card in the repairs room, and replaced it. Simple as that.

    How does the fact that my local Apple Store happened to have the replacement part in stock obviate the evidence that it fixed the issue?
  • 61. Re: Graphic Glitches
    jason kessel Level 1 Level 1 (115 points)
    Like I said, I'm not calling you a liar or trying to make any waves. I actually have more of an issue with APPLE at this point. They guy at the genius bar said even if they had the card in stock, they would have to run a diagnostic on the Mac before replacing the card. He even saw the friggin artifacts on the screen! Pretty inconsistent service if you ask me. Also... don't you find it rather odd that some of the people never had a problem until Leopard was installed? I mean, why would just the OS put enough strain on a 512MB video card to trigger a problem like this? Like I said... not trying to makes waves. It's just all rather interesting to me. If the OS is indeed triggering bad video cards that were fine in Tiger, Apple is going to have a lot of X1900s to replace soon!
  • 62. Re: Graphic Glitches
    resistor Level 1 Level 1 (0 points)
    My card was fine in Tiger before I installed Leopard.
  • 63. Re: Graphic Glitches
    resistor Level 1 Level 1 (0 points)
    Also, perhaps Leopard isn't exercising it more so much as using a different function/part of the card?

    My hypothesis (this is really a hypothesis, so take it with a grain of salt) is that chip Y on the X1900 happens to located near the oft-clogged heatsink, so is a likely recipient of heat damage. For whatever reason, the graphics drivers in Tiger didn't make use of chip Y (maybe it implements some particular compositing function that Tiger just never used?). Then you upgrade to Leopard, the graphics drivers of which now USE chip Y (to do crazy magic compositing or something). And so you see graphics corruption that you didn't see before, because the damaged part is now being used.
  • 64. Re: Graphic Glitches
    jason kessel Level 1 Level 1 (115 points)
    resistor wrote:
    My card was fine in Tiger before I installed Leopard.


    Case in point.
  • 65. Re: Graphic Glitches
    jason kessel Level 1 Level 1 (115 points)
    This could be true for sure. If so, Apple did something wrong in Leopard. The glitches we've been seeing are happening on a simple Window. Like the white space in Mail. Whatever it is... it's weird! Sure would be nice if APPLE would acknowledge it!
  • 66. Re: Graphic Glitches
    resistor Level 1 Level 1 (0 points)
    Wrong would be an overstatement. "Causes problems on buggy/damaged hardware" would be closer.

    Given that someone above noted that disabling Quartz Extreme fixes the issue, it seems increasingly likely that it is somehow related to compositing engine changes in Leopard. The whole point of Quartz Extreme is to use graphics card capabilities to accelerate on-screen compositing. Yes, even for simple things like text fields.

    I said it was a hypothesis, but I think it is fairly well supported by the (now 2!) pieces of evidence we have.
  • 67. Re: Graphic Glitches
    jason kessel Level 1 Level 1 (115 points)
    Good points indeed. The more we dig into this the more eager I am to get my Mac Pro back with a new X1900. I'll be reloading Leopard lickety split! Makes me wish I had left Leopard on it when I took it to the Apple store. The issue was more obvious... I had the tiny artifacts AND the stripes. Hurry up and fix my Mac Apple!
  • 68. Re: Graphic Glitches
    Oliver Gruber Level 1 Level 1 (0 points)
    I have a MacBook Pro Core Duio 1.83GHz with a ATi X1600. I have those horizontal lines too.
  • 69. Re: Graphic Glitches
    jason kessel Level 1 Level 1 (115 points)
    Key word... "ATI".
  • 70. Re: Graphic Glitches
    Dave Cook Level 2 Level 2 (355 points)
    Key word "Leopard". It's not like we have such a wide array of choices for video cards. I thought the advantage of a closed system was that everything "just works".
  • 71. Re: Graphic Glitches
    jason kessel Level 1 Level 1 (115 points)
    True... key word(s) ATI and Leopard.;)
  • 72. Re: Graphic Glitches
    slyhats Level 1 Level 1 (0 points)
    I have exactly the same problems, glitches popping up across the screen, they only happened once I installed Leopard. I have Tiger still installed on another disk and have been using that without any glitches. but when I boot up in Leopard again there are the glitches. I have the Radeon X1900 installed too. I doubt the hardware is causing the problem otherwise why is it still functioning perfectly well in Tiger. There needs to be a software fix, I can't afford to drop my Mac off for 3-5 days (minimum) at my local reseller to get this looked at and replaced when the same problems are sure to pop up. Apple needs another miracle software update with fixed drivers I think.
  • 73. Re: Graphic Glitches
    HudsonJohns Level 1 Level 1 (120 points)
    Ok. I'm on day 5 and I continue to have the graphical glitches; lines that run across a 30" monitor or the individual programs. Scroll in a browser and the lines move with the scrolling. I posted this complaint along with system freezes (which have disappeared now) and the moderators prompted removed it and sent me a message that the complaint was out of bounds.

    I want and demand that Apple fix this ASAP. I put out over $7,000 for this Mac Pro and the 30" Apple Cinema display and I depend on this machine to earn an income from graphic work. I can't take a screen shot anymore without getting those ridiculous lines and that means I can't send a such a graphic to a customer without sheer panic from them.

    Again, I want this fixed ASAP. I know the moderators are reading this and I don't care if they remove it again. I will keep posting it until Apple issues a fix. When you pay thousands of dollars for computer equipment then it better work or expect to face loud frustrated customers such as myself.

    I'm in a wheelchair. I don't own a car. I can't just throw the CPU into the car and drive it down to the Apple store and most importantly, I can't afford to be without the machine for any serious length of time (3 to 4 days).

    Jason, what is the result of your fix? Has your machine been returned and was the problem corrected?

    I am angry as **** with Apple that they didn't see this coming - especially for their high end customers. Why on earth would they release an OS upgrade that clearly resulted in such display problems and why didn't they alert those customers with high-end machines that installing Leopard would most likely result in the user having display problems? I am absolutely fuming over this.

    John
  • 74. Re: Graphic Glitches
    HudsonJohns Level 1 Level 1 (120 points)
    I just received a call from our local ABC news station consumer reporter and he wants to interview me and the problem with Leopard today. Perhaps if I can get this on Bay Area television we can get Apple to respond quickly. They want to schedule the interview this afternoon but I told them I was pretty angry and would prefer to cool down a bit before appearing on camera. The interview is tentative for tomorrow afternoon.

    John
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