Previous 1 6 7 8 9 10 Next 149 Replies Latest reply: Nov 27, 2015 4:50 PM by iGary Go to original post
  • thouwlin Level 1 (0 points)
    I did not have this issue with the 2600HD but I upgraded to a 5770 and now I get the static and I seem to have fixed mine. So my main screen would show white noise every time I came out of sleep mode. I did not have a screen saver just the power saving sleep after 10mins. So I turned on my screen saver at 10mins and power saver at 15 mins and the static has not occurred since(5 sleep cycles).
  • Andi-0815 Level 1 (15 points)
    I had the noise after booting from Windows to Mac OS, and when starting the Mac after power on. Shutting off the Monitor (DELL, DVI) does never help, so I use to use the hot-corner-workaround after having logged in blindly.

    No problems with Windows, so far, so I think it's a big driver problem -- or an ugly hardware problem that needs a workaround in the driver.

    I own only one monitor.
  • Fjan Level 1 (10 points)
    I get this too on a 5870. I have two monitors attached, an Apple and a Dell and it only happens to the Dell.

    From what I picked up somewhere else the grey static is most likely caused by HDCP negotiation failing between monitor and card.
  • Spacecadetcraig Level 1 (5 points)
    I'm still dealing with all of these issues - anyone had Apple actually resolve anything yet?
  • grdh20 Level 1 (35 points)
    This does not not go away with 10.5.7 and I really suspect it is a Video card hardware bug shared between a few ATI models. Maybe something in the vid card connector itself? Then again, I think some have reported same problem on display port connectors too. In any case, my MP 2010 (5870) is set to not ever to go to sleep, but sometimes on start up, when I get to the desktop, I get snow/static covering the screen. If I unplug the DVI cable and plug it back in at the computer, then it returns to normal. I have tried a different cable. It doesn't happen allot, but does continue from time to time. very frustrating not to be able to pin down though.
  • grdh20 Level 1 (35 points)
    sorry I meant 10.6.7 above.
  • Spacecadetcraig Level 1 (5 points)
    I'm pretty sure the white noise issue is caused by poor HDCP verification on Apple's part. Many 3rd party displays that have HDCP support are showing this - however - white noise doen't appear on displays that don't have HDCP in my experiences.

    Keep bothering Apple about it.
  • grdh20 Level 1 (35 points)
    I don't understand what HDCP - High-Bandwidth Digital Content Protection would have to do with getting infrequent static at boot on the desktop? I don't think that is it unless I'm missing something. Also, my static has nothing to do with sleep whereas most others report this from sleep. Do you still think it is the same issue?
  • Spacecadetcraig Level 1 (5 points)
    I can't be 100% sure it's HDCP issue but I feel confident about it. I'm in the same boat with you: sleep isn't the only time static hits me - it can happen utterly randomly.

    The white noise is usually what happens when the HDCP technology doesn't think you have permission to be viewing the content on the screen (which is ridiculous). It's a form of DRM for displays. I don't think Apple spends much time (if any) testing HDCP compliancy on 3rd party products and this may be why it's happening only to people on 3rd party products and not Apple's own displays.
  • grdh20 Level 1 (35 points)
    I wonder if anyone has figured out a way to disable HDCP on a mac?
  • jlow00 Level 1 (0 points)
    I've put up with this since November, I'd love to see if someone can disable HDCP to see if that really works. I'm betting that a driver replacement may be required and is likely prohibitive and totally not supported. Has any body else called apple on this to see what the status is?
  • YeeHa! Level 1 (110 points)
    I called tech support yesterday. The guy that answered knew nothing about any problems with static/snow display... Suggested that I make an appt to take it in to an Apple store. Also suggested that I try resetting the SMC. Anyone try that?
  • grdh20 Level 1 (35 points)
    yes I have tried resetting SMC for other reasons and the problem I have as since IO don't use "sleep", the problem is not infrequent enough to be able to show anyone from Apple or do any real troubleshooting. For anyone who can repeat this reliably, you should probably bring it is to show at an Apple store if it is possible. To Apple, this probably sounds more like a rumor than a real issue unfortunately.
  • tomk94 Level 1 (0 points)

    I have the same problem with my iMac 21.5" from 2010(cheapest model) connected with a Mini Displayport to DVI adapter and cable with the LG E2240. 50% of the times i turn the screen on after startup or after sleep the screens shows white snow/noise.


    It's very annoying. I hope there will be a solution soon. Will it be usefull to RMA the Mini Displayport to DVI adapter?

  • Forrest Level 1 (5 points)

    I have a new Mac Pro with a Samsung monitor.  I experience the "snow" phenomenon -- but not always.  When it happens, I simply power cycle the monitor and it goes away.   

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