Question for C2D owners

Discussion in 'iMac' started by puckhead193, Oct 1, 2006.

  1. puckhead193 macrumors G3

    puckhead193

    Joined:
    May 25, 2004
    Location:
    NY
    #1
    Can someone run Flurry the screen saver and look for a horizontal line. It sorta travels up/down. I want to see if its just the screensaver or if the display is messed up..
     
  2. Sobering macrumors regular

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    Aug 27, 2006
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    Canada
  3. Macmadant macrumors 6502a

    Joined:
    Jun 4, 2005
    #3
    Well i think you may be on to something mines doing it, however my powermac G4 does it aswell, but i've noticed in halo sometime the screen will split in half, when i move fast, but it's only for a split second
     
  4. polevault139 macrumors 6502

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    Sep 24, 2006
    Location:
    Illinois
  5. ViveLeLivre macrumors regular

    ViveLeLivre

    Joined:
    Sep 24, 2006
    #5
    Do you both have 7600's?

    Reminiscent of a V-sync problem.
     
  6. governor macrumors member

    governor

    Joined:
    Aug 31, 2006
    Location:
    Sweden
    #6
    That's NOT true..

    Flurry SUFFERS from screen tearing on the imac. Everybody knows that. You just haven't noticed it yet.

    Every newer imac i have seen flurry on, displays vertical screentearing. (the ones (6-7) at work, and also the 3 intel imac's i have unpacked the last month. + My friends imacs.. So please! don't try to fool anyone that your computer is unique.

    What you also will notice is that every G5/intel imac has brighter corners when flurry is on, when seen in a dark room. It's not the computers fault. It's just a buggy screensaver, even thou it's nice to look at!
     
  7. eva01 macrumors 601

    eva01

    Joined:
    Feb 22, 2005
    Location:
    Gah! Plymouth
    #7
    My dual 1.8G5 does this with my 2005FPW

    so it isn't just you, or just C2D owners.
     
  8. puckhead193 thread starter macrumors G3

    puckhead193

    Joined:
    May 25, 2004
    Location:
    NY
    #8
    good i'm glad i'm not the only one. I think its just the charateristic of the screensaver
     
  9. nightelf macrumors 6502

    Joined:
    Mar 25, 2003
    #9
    Just noticed my new iMac C2D had that... happened every couple seconds.

    I don't think is an issue.
     
  10. Macmadant macrumors 6502a

    Joined:
    Jun 4, 2005
    #10
    Yeah it is, my ibbok does it, my powermac does it and so does our C2D imac, so it's just th screensaver
     
  11. SpookTheHamster macrumors 65816

    SpookTheHamster

    Joined:
    Nov 7, 2004
    Location:
    London
    #11
    I always forget how hypnotising that screensaver is. I just spent quite a long time staring in amazement.

    And yes, it does happen on my C2D iMac, but not very often.
     
  12. generik macrumors 601

    generik

    Joined:
    Aug 5, 2005
    Location:
    Minitrue
    #12
    Can someone take a photo of screen tearing so we can see what it is all about? Also the bright corners, could that just be uneven backlighting rather than a fault with flurry?
     
  13. orangezorki macrumors 6502a

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    Aug 30, 2006
  14. tomacintosh macrumors regular

    Joined:
    Aug 25, 2005
    #14
    Yeah just checked, happens of my new C2D aswell, hardly noticable though, probably why I haven't questioned it on any of my previous G5 iMacs
     
  15. puckhead193 thread starter macrumors G3

    puckhead193

    Joined:
    May 25, 2004
    Location:
    NY
    #15
    thankss for looking, i was checking to see if could see any dead pixels so i thought i would run flurry and i notice this line, but no where else...
     
  16. MIDI_EVIL macrumors 65816

    MIDI_EVIL

    Joined:
    Jan 23, 2006
    Location:
    UK
    #16
    PowerBook G4 1.67 does it too.

    It's the screensaver not your video card.

    Rich.
     
  17. Sam0r macrumors regular

    Joined:
    Jun 15, 2005
    Location:
    Birmingham, UK
    #17
    Actually, its the screen.

    The reason (iirc) it tears is because the screensaver is running at a higher framerate than the monitor (Usually 60hz, which means it refreshes the image on the screen 60 times a second, although with TFT's it doesn't, but i'm not going into that.) can handle.

    So, if the graphics card is pumping out flurry at say 70fps, there will be a point where the screen is refreshing when the graphics card is half way through rendering a frame, then you'll only get half of the frame displayed, and half of the next one, which gives you a tearing effect.

    Most games have a V-Sync function which won't let the graphics card render over 60fps (Or whatever the refresh rate of your monitor is set at).

    So, yeah. There is nothing wrong with your machine, infact its a good thing that its doing that.

    Looks ugly though.
     
  18. Macmadant macrumors 6502a

    Joined:
    Jun 4, 2005
    #18
    Is a TFT display different to an LCD ? or am i getting confused
     
  19. Sam0r macrumors regular

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    Jun 15, 2005
    Location:
    Birmingham, UK
    #19
    I'm not sure, but as far as most people are conserned, they're the same.

    I know that TFT stands for Thin Film Transistor, and LCD stands for Liquid Crystal Display. I always thought a flat lanel monitor used TFT technology where as those little screens in digital watches used LCD technology. Although, I think the way TFT's work is basically the same as the way a LCD works.
     
  20. swingerofbirch macrumors 68030

    Joined:
    Oct 24, 2003
    Location:
    The Amalgamated States of Central North America
    #20
    i just noticed this and was about to post, when i did a search for flurry screensaver, who would have thought that there would already be a thread for something so esoteric! good to know not just me!

    btw, i have it occur on my 17" 2ghz C2D imac
     
  21. kgarchar macrumors 6502

    Joined:
    Sep 21, 2006
    #21
    really weird bug, never noticed it on my macbook or external display
     
  22. kgarchar macrumors 6502

    Joined:
    Sep 21, 2006
    #22
    sorry, just had to say

    DFA1979!!!!
     

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