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Mac Pro sometimes displays static after displays wake up from sleep

74402 Views 148 Replies Latest reply: Apr 6, 2014 4:18 PM by Mark Scott RSS
  • Scott Thomas3 Calculating status...
    I have two of the same Gateway FHD2400 monitors.

    Even under OS X 10.6.2, I STILL get the snow. I have had this problem now for more than a year now.

    I've checked Gateway's website. In their support forums they talk about seeing snow when the DHCP part of the monitor loses its connection with the device providing the image. (In the case of their support page, a BluRay player) There is little info otherwise.

    As far as I can tell, there are no firmware updates for the monitor.

    My problem is still like this: When the computer boots, the primary display turns on and displays fine. The second display, when it's turned on later, 100% of the time, will display snow. When the computer is put into sleep, or just the displays are slept, they both will display static.

    It takes between 1 to 6 power cycles for the monitors to finally display the image.

    Like I said, this has been going on for more than a year. It's probably one reason why I use my laptop more around the house, and shy away from working on those projects I'm supposed to be doing on the Mac Pro. Perhaps I should just set my G5 back up. It didn't have these issues... with the same monitors!!!!!!!

    I'm in the process of downloading the 10.6.3 update again. My last attempt, the last time I used the Mac Pro, failed. Hopefully the download won't get corrupted like last time.

    Sorry for venting.

    Message was edited by: Scott Thomas3
    Mac Pro Early 2009, Mac OS X (10.6.2)
  • Scott Thomas3 Level 1 Level 1 (5 points)
    OK, just let the machine do the OS X 10.6.3 update.

    The machine booted up with BOTH displays. That is different, and a positive change.

    Wake from sleep wasn't as successful. Both displays awoke with static. I've tried this a few times with the same results.

    Another positive change is this: When there is static on the monitors, a single power cycle seems to bring them back to life. This is different than the 1 to 6 or more times I would have to cycle the power before I could get them back.

    OK, bring on 10.6.4! Perhaps this will fix the issue once and for all... Just as I'm ready to upgrade to the newest Mac Pro, or whatever.

    Message was edited by: Scott Thomas3

    I spoke too soon. A second reboot took me right back to square-one. Primary display comes up ok, and the second is static. sigh

    Message was edited by: Scott Thomas3
    Mac Pro Late 2009, Mac OS X (10.6.3)
  • Scott Thomas3 Level 1 Level 1 (5 points)
    I suppose it's just a coincidence that 10.6.4 was released on the very day I returned to my complaint.

    10.6.4 seems to have fixed my issues. Rather than see snow, constantly, I now see the snow, then the machine seems to do the proper handshaking and clears up the snow.

    Only took one year. Glad this wasn't a production machine.
  • advres Calculating status...
    Just got a new mac mini and am seeing this. So far 3 out of the 4 times I tried to wake it from sleep this has happened. 10.6.4 DVI connected via mini displayport adapter.
    2.4 mac mini, Mac OS X (10.6.4)
  • dvolz Calculating status...
    I have a 27" iMac with the i7 processor and I have an attached 20" Acer monitor connected by a DVI to Mini DisplayPort adaptor. I did not have this issue while using a borrowed VGA to Mini DisplayPort adaptor. The rainbow static only occurs on the Acer monitor. I previously had the Acer monitor connected to my Mac Mini through a DVI cable so I know the DVI port on the monitor is functional.
    iMac 27", Mac OS X (10.6.4)
  • Dave Razorsek Level 1 Level 1 (5 points)
    Add me to the list. I have a slightly older Samsung monitor which was connected through the DVI port on an older MacBook Pro for years and worked flawlessly. I recently purchased a Mac Mini server and now I am also getting snow about 50% of the time when the display wakes from sleep. I am using the HDMI to DVI adapter which came with the Mini.
    Mini Server, Mac OS X (10.6.4)
  • s.m.t. Calculating status...
    I am still having this issue, but I have not upgraded to 10.6.4 (I am still at 10.6.3), I will try upgradeing and see if this goes away for me as well.
    Early 09 Mac Pro 2.66GHz Quad 640GB HD 8GB, Mac OS X (10.6.3), Early 09 iMac 2.66GHz 1.5TB HD 4GB RAM
  • s.m.t. Level 1 Level 1 (10 points)
    I am seeing the same behavior after updating to 10.6.4. The snow still appears each time I wake the display, but it now goes away on its own after a few seconds...
    Early 09 Mac Pro 2.66GHz Quad 640GB HD 8GB, Mac OS X (10.6.4), Early 09 iMac 2.66GHz 1.5TB HD 4GB RAM
  • marchou Calculating status...
    Mac Pro with 3 Samsung monitors hooked up to 3 seperate GeForce GT 120 cards.
    Static on only 1 of the 3 monitors when waking from sleep.
    Annoying as ****
    macpro, Mac OS X (10.5.6)
  • Andy Morris1 Calculating status...
    Same issue for me with ATI card. Computer works fine, the display goes to sleep, I move the mouse to "wake" it, and I get the static noise. If I power off the monitor and back on, it works again, but I can't do that since I have an external drive connected to the monitor. If I leave the static on the screen for a few minutes, it resolves itself and the computer works fine again.

    I have a Dell 2307 connected via DVI to my Mac Pro.
    Mac Pro, ATI 4870
  • labeck Level 1 Level 1 (0 points)
    I have a new 6-core and a 23" Samsung monitor hooked up via DVI. I get white snow/static when the MP goes to sleep. If I turn the monitor on and off again the screen comes back.

    My question is, does this happen with the 27" ACD? I have one on order and plan on taking back this Samsung. Has anyone got in touch with Apple regarding this issue? What have they said? Will a solution be a firmware update?
    Mac Pro 3.33Ghz 6-Core, 24GB RAM, 120GB OWC SSD, 27" ACD | 13" MacBook, Mac OS X (10.6.4)
  • Martin Stacey Calculating status...
    Add me to the list too. i only get it on my sony tv which i use to watch tv from my mac on. with that i have an underscan slider in the system prefs and messing about with that or changing the resolution usually sorts it out.
    2.8 Gghz Quad-Core Intel Xeon, Mac OS X (10.6.2)
  • Mattles Level 1 Level 1 (0 points)
    Same issue here.
    My macbook pro is connected vai the mini display port to DVI to Dell monitor. Dell swapped the monitor and still get the colour static after waking from sleep.
    Mac Pro, Mac OS X (10.6.4)
  • Emodro Calculating status...
    Ok same here, here's what I found. To be honest I thought it was a problem with my monitor as my 23" sync master would always do it, but my 22" Soyo would not. Today I got a new 23" HP monitor and it happens as well on both at the same time. I have an Nvidia 8800GT on my computer and both monitors are connected via DVI. This only happens when I boot to SL. If I force my displays to sleep (ctrlshifteject) and wait a few minutes I will get white snow (same if i let it turn itself off). If i force them to go black and quickly wake them I never get static. When experiencing static If i change inputs on the monitors or turn them off and on the static will go away, not the end of the world, just really annoying.
  • edenexposito Level 1 Level 1 (0 points)
    Hi!

    I have a Mac pro mid 2010 (12 core, 16gb Ram, Snow leopard 10.6.4, Ati HD 5870).
    2x Dell Wfp2408 Ultrasharp.

    I tried to connect both but static noise appear in the monitor that need conversion from Apple minidisplay port. I had tried with single link Dvi cable + dual Link DVI to Apple Mini DisplayPort official adapter, but i had static noise. I was thinking that maybe with a Dual Link DVI cable i could solve this problem, so i got a Dual dvi cable + dual link DVI to Apple mini display port official adapter and...... the same problem, static noise appear..... i thought that maybe could be a problem with Dell revision of monitor i have one monitor older than other and I thought change its conections and...... static noise appear on the other monitor!!!.... later i thought that something with conversion from DVI to minidisplay port are wrong... 100€ for apple dual link Dvi to minidisplay port and dont work!!!

    Dell display have a display port input... and Ati minidisplay port output.... well i thought that a Display port cable to minidisplay port cable could work, so i had bought this http://estore.circuitassembly.com/products/Mini-Displayport-to-Displayport-Adapt er-Cable.html and VOILA! no more static noise!!! problem SOLVED!

    There are people with expensive apple dual link dvi to minidisplay port converter had connected a dvi display without static noise problems?

    Last thing i have a Macbook pro mid 2009 and a samsung display (Syncmaster 245e) and with apple simple adapter from minidisplay port to dvi i had had same issues

    something with minidisplay port to dvi are not standard from apple. Not work.

    Message was edited by: edenexposito
    Mac Pro mid 2010, Mac OS X (10.6.4), Dual Display Dell Ultrasharp 2408
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