Fresh Upgrade of Mountain Lion is using 100% VRAM

Discussion in 'OS X Mountain Lion (10.8)' started by milbournosphere, Aug 1, 2012.

  1. macrumors 6502a

    milbournosphere

    Joined:
    Mar 3, 2009
    Location:
    San Diego, CA
    #1
    Is anybody else seeing this problem? Straight from boot it's using 100% of the graphic card's video ram, and I see no reduction. Screenshot attached, taken from atMonitor on my Mac Pro.
     

    Attached Files:

  2. macrumors 6502a

    Joined:
    Feb 11, 2009
    Location:
    Australia
    #2
    There are known problems with atMonitor and Mountain Lion, so what you're seeing could merely be a bug.
     
  3. jcampbell1070, Aug 2, 2012
    Last edited: Aug 2, 2012

    macrumors member

    Joined:
    Jul 12, 2010
    Location:
    NC
  4. thread starter macrumors 6502a

    milbournosphere

    Joined:
    Mar 3, 2009
    Location:
    San Diego, CA
    #4
    Yeah, I've seen a few different monitors all reporting the same thing. Either they all use the same\similar back-end and have the same bug, or ML is wiring all of the card's video memory at boot. Does anybody else see this happening on their box?
     
  5. macrumors 65816

    mabaker

    Joined:
    Jan 19, 2008
    #5
    The real question is are you experiencing choppy animations and poor app performance?
     
  6. thread starter macrumors 6502a

    milbournosphere

    Joined:
    Mar 3, 2009
    Location:
    San Diego, CA
    #6
    Not particularly. I also haven't had the time to try any more graphically intensive tasks (gaming, PS openGL stuff, etc.). The system is also very slow to login and kick off my login items, so maybe a clean-restore is in order anyway. I'm usually wary of upgrading OS's...this is my first time taking the upgrade path.
     
  7. macrumors 65816

    mabaker

    Joined:
    Jan 19, 2008
    #7
    I definitely would opt for clean install. Start a fresh new install. I bet it will be like night and day.
     
  8. macrumors regular

    concernedone

    Joined:
    May 26, 2011
    #8
    OK, there are people saying that:
    -they are still experiencing bugs/issues even after clean install
    -clean install vs. upgrade won't affect performances on a MAC as oppose to Windows
    -there's no discernible real life difference between a clean install vs. upgrade
    -clean install will solve all the bugs/issues or most of them

    Also, when people say clean install they tends to mean different things.
    1. ppl can wipe the disk clean and reinstall os and apps and put back only the files
    2. ppl can wipe the disk clean and reinstall os and time machine it back which includes all the apps and the old preferences

    So, I'm getting a LOT of conflicting opinions. So, can we have an :apple: guru or expert on this issue please?
    I want to know if clean install make any real life difference? Not just housekeeping sake.
     
  9. macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #9
  10. thread starter macrumors 6502a

    milbournosphere

    Joined:
    Mar 3, 2009
    Location:
    San Diego, CA
    #10
    FWIW, it is possible to discern what you want restored from a Time Machine Backup. Usually I will move my data back and not restore System Settings/Applications. This usually brings back preferences from 3rd party applications, but most of the low-level stuff is nice and clean. I still haven't found anything regarding my issue; I am going to try a clean install this weekend, mainly to see if my login times are quicker. I am leaning towards this being a reporting bug from iStat/atMonitor.
     
  11. thread starter macrumors 6502a

    milbournosphere

    Joined:
    Mar 3, 2009
    Location:
    San Diego, CA
    #11
    Okay, clean installed. System is performing better overall, boot times are much faster. iStat and atMonitor still show 100% vram usage. I've yet to see any other info about this probably-bug...does anybody else know of iStat or atMonitor fixes in the works?
     
  12. macrumors 6502

    The JTizzle

    Joined:
    Jun 14, 2009
    Location:
    Maine
    #12
    I spoke iStat devs right after 10.8 came out and they said it was a bug with apples video drivers and most likely can't be fixed on their end, but they reported the bug to apple and are keeping their fingers crossed for a fix. Your video card isn't going to explode, so no worries.
     
  13. macrumors newbie

    Joined:
    Jun 26, 2011
    #13
    I've noticed this bug too on clean 10.8 install after 2 weeks on ML. Last few days I see slow performance in VLC playing 1080p and some app animations. I decided to install atMonitor and check VRAM usage and got 100% without decreasing even right after fresh boot.

    It's not only view stats bug, this is a real trouble in using VRAM depended apps.
     
  14. thread starter macrumors 6502a

    milbournosphere

    Joined:
    Mar 3, 2009
    Location:
    San Diego, CA
    #14
    It's strange that you're seeing a performance decrease. I have the bug, but am not really suffering any problems because of it. Perhaps it's another issue unrelated to the driver bug to which JTizzle is referring.
     

Share This Page