5.1 Screensaver lagging

Discussion in 'Mac Pro' started by mgmtm3, Apr 11, 2017.

  1. mgmtm3 macrumors newbie

    Joined:
    Nov 12, 2016
    #1
    i have a rather silly but annoying issue with my 5.1. Half the time the flurry or other two screensavers like it turn on they lag around at a really low frame rate. The other half they are buttery smooth. If I go to the settings menu and preview any of them they always work great. I have a gtx 970 and a 144hz monitor that I'm thinking are the likely culprits to start with. Anyone else have this issue or even better a quick fix before I go down the rabbit hole on this? Already have reinstalled the OS. (Not for reasons involving fixing the screensaver :)
     
  2. PieTunes macrumors 6502

    PieTunes

    Joined:
    May 6, 2016
    Location:
    San Diego, CA
    #2
    I had similar issues with the Flurry screen saver on my 5,1 with a GTX 680 ever since Sierra first was released.

    When I upgraded from El Capitan, I started experiencing random desktop drawing issues. Screen saver (Flurry) would at random times be slow and choppy. Then the desktop would randomly freeze. Say I'd walk away from the computer for a few minutes, come back, click on a Dock icon to bring up an open app, and halfway through the "genie" popup visual effect, everything would freeze. Mouse would move but can't click or do anything. About 7 seconds later, everything would suddenly "catch up" to what I clicked or moved during the time it was frozen.

    It kept doing this off and on at seemingly random times. I didn't think much of it and kept upgrading the OS for each subsequent release, thinking "maybe it'll be fixed now." Kept doing it. I would keep Console open on the errors/faults page and watch it to see what was happening to the machine whenever the random lockup happened. It was a sort of desktop compositing or graphical error (wish I saved screenshots of it) that after some time, would start repeating the error but then incrementing by 1. It would get to 999 or close to it and then at that point it would do the freezing up.

    I wiped and reinstalled the OS a couple times. No problem at all for a few days then it would start up again. I uninstalled and reinstalled the Nvidia 680 drivers. Eventually I just stuck with the OS X drivers, and it still kept doing it. The machine was still usable but this issue was somewhat aggravating.

    When 10.12.3 dropped, it still was happening. Finally the last thing I tried was the only thing I never did think about, the only commonality between El Capitan and Sierra was that I stuck with the same screen saver. I changed Flurry to one of the "less taxing" photo slideshow ones. Never had the problem since. Not once!

    I can only guess that in some way, some sort of "timing subsystem" or whatever the heck that is somehow tied together with screen redrawing/compositing has some kind of issue with whatever graphical crap the Flurry and Arabesque screen savers use. Maybe something to do with how Metal is used to draw the screen with Sierra now? Who knows.
     
  3. mgmtm3 thread starter macrumors newbie

    Joined:
    Nov 12, 2016
    #3
    It's a super odd issue, your timing subsystem might be completely on point. Thanks for the reply! For now I have turned the screensaver off, it will always bug me that my mac can't draw a little screen saver correctly.
     
  4. PieTunes macrumors 6502

    PieTunes

    Joined:
    May 6, 2016
    Location:
    San Diego, CA
    #4
    The culprit seems to be however the Flurry and Arabesque ones are drawn, I haven't tried it but the Shells one might be the same. For me it was Flurry. Last week someone in another thread mentioned a similar issue he was experiencing. Said they were using Arabesque and the problem went away when they stopped using it.

    Another common link between yourself, myself, and this other person, is we all are also using Mac Pros with Nvidia video cards. I personally experienced the issue with either the Nvidia drivers or the default OS X drivers.
     
  5. honeycombz macrumors 6502

    honeycombz

    Joined:
    Jul 6, 2013
    #5
    Is this a universal problem with the GTX 680s and Mac Pros 3.1-5.1?
     
  6. PieTunes macrumors 6502

    PieTunes

    Joined:
    May 6, 2016
    Location:
    San Diego, CA
    #6
    I don't know honestly. If there are any other owners with similar hardware who are having similar issues, not very many have posted anything about it.
     
  7. honeycombz, Apr 16, 2017
    Last edited: Apr 17, 2017

    honeycombz macrumors 6502

    honeycombz

    Joined:
    Jul 6, 2013
    #7
    Have you tried different PCI slots? What kind of monitor are you using?
     

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