OS X :: Graphics Hiccup At Startup - Need To Reset NVRAM
Aug 27, 2010
Unless I reset the NVRAM, there is a screen hiccup at startup. Right after the Apple logo, but right before the blue screen, there is a graphics glitch where there are a bunch of gray lines/marks for a second, then it starts up normally. It goes away after resetting the NVRAM. I did a clean install of OS X Snow Leopard to see if it would go away, but it's still there. I don't want to reset the NVRAM again because I don't like how the computer starts up at a bright setting.
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Aug 9, 2009
I have already covered these steps:1. I have tried a safe boot. 2. I have tried to reset the NVRAM and the PRAM.3. I have tried to reinstall OSX from the Install Disk.4. I have tried to repair the HD and tried to repair permissions using the Disk Utility. he issue started out as the flashing Apple/Question Mark Folder/"No" sign. I attempted to follow the steps on the Mac Support Forums (ones listed above) and the issue developed into the picture shown.
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Dec 22, 2007
Strange problem since I got my MB back from the apple store (got a new hd). Now, every so often, the cursor will jump to a different part of the screen, often when I'm typing. You can imagine how frustrating that can be!
Was the case put back together wrong? Hiccup with the motherboard?
First gen white Macbook 1.83 with 2 GB, running 10.4.11
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May 28, 2012
is there any way for me to restore my air to factory settings without the startup usb it came with? if not will apple charge me to take it in and have them restore it for me?
Info:
MacBook Air
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Jan 1, 2011
I was using it in my bedroom, it was plugged in. I went to make some food, and upon my return I am greeted by a blank screen, probably just a hiccup right? So I held the power button down expecting it to spring back in to life. But it didn't. It wouldn't turn back on. At all. Luckily, I thought, I have my old 2006 Macbook that I keep as a back up just for times like this. As it hasn't been turned on for a while, the low battery warning comes on, so I plug it in. 10 seconds later, it hibernates. I switch it back on, but it keeps hibernating for no good reason. So I think restarting it will solve the problem. It didn't. It too, now wouldn't turn back on. At all.
In the space of a few minutes, they both completely died. I've tried resetting SMC, PRAM, everything I've found on Apple's support page and forums like this. Nothing has worked. The light on the power cable glows orange when plugged in, so it is still charging, and the battery indicator lights on the side of the MBP work fine. Aside from that, they are both completely lifeless...........
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Feb 4, 2009
Maybe, I did not notice this earlier, but I notice that hard drive is pretty quite but every 10-15 secs, it almost has this faint click noise. Is anyone else experiencing that? Its not that loud, but loud enough to hear if you are in a quiet room or library.
Seems like a click noise every 10-15 secs even when hard drive is idle
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Mar 31, 2012
How do I reset the admin password without the startup disc? My dad just gave me this old gem but it has not been updated in years. He cannot remember the password and he no longer has the startup disc!
Info:
iMac, Mac OS X (10.5.7)
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Jun 5, 2012
Is it ok to have a PRAM and NVRAM reset two times a week?
Info:
MacBook Air, Mac OS X (10.7.4)
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Jun 26, 2012
I lost the startup tone a couple days ago. I repaired permissions, did an SMC and PRAM reset and it makes the tone while doing the PRAM reset but the next time you turn it on it doesn't make a sound.
Info:
iMac, Mac OS X (10.6.8), 3.2 GB Dual Core
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Jul 6, 2009
Few months ago I modified some plist somewhere to force verbose mode booting. It was not the NVRAM command. I remember adding a <string>-v</string> somewhere. But now I have no clue where it was.
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Jun 2, 2010
i use silverlight to watch instant netflix but i didn't know it is such a memory hog. i should have noticed that when i watch instant netflix on one window and browsing regularly on the other that the movie would hiccup each time i click on a link in a website or each time i visit a new web page. it doesn't slow down the computer or anything to make it unusaeable. but, i am concerned of the page outs since i don't want my harddrive to work overtime. is this something i have to live with?
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Jul 1, 2012
Running 10.7.4, MacBookPro Mid 2010. Â
After hardware failure (read heads on HD gave out. AppleCare replacement of HD. Third party data recovery and reinstall on my new HD.) I connected new Ext HD for Time Machine, and Time Machine has corrupted my startup volume.Â
Took to the repair shop and they said the Time Machine preferences file was corrupted, which left all my system drive data in a read-only state after backup. They trashed the pref file, and reset the permissions/read-only flags on my startup volume.Â
1) How do I reset the file permissions myself? (so I can nuke my Time Machine backup, manually back everything up, and manually recreate my entire system drive?)
2) Do you think since the data recovery place (Apple Authorized BTW) rewrote all my original data to the new HD, some "random" corruptions were copied over? Or is this a problem with Time Machine? (Which is why I want to do a manual reinstall/restore.)
Info:
MacBook Pro, Mac OS X (10.7.3)
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Sep 3, 2010
I have a 2006 Mac Pro and recently my firewire ports stopped working (front and back). I did a little searching around found a suggestion to try resetting the Mac's PRAM and NVRAM by holding the Cmd-Option-P-R keys down while booting. I have tried this numerous times and it doesn't seem to do anything (i.e. the Mac just loads OS X and doesn't re-boot like the instructions say). I'm using a MS Wireless Comfort Keyboard for Mac. Can you reset using a wireless keyboard?
Since I wasn't making any progress with that, I was toying with bringing in the Mac to a genius bar. Never having used the genius bar before - how does it work? Do I bring the computer in and leave it with them? Do they work on it while I'm there? I don't have an extended warranty so do they charge time and materials? I'm wondering if that might get awfully expensive and if I ought to just buy a PCI-X firewire card instead.
Any suggestions?
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Jun 17, 2014
I have a mid-2011 iMac (with Mavericks OS), and am doing a clean install before giving my computer to a relative. I performed a secure erase of my entire harddrive (using disk utility), reset the NVRAM / PRAM (but it only chimes once even after I tried several times), and now I get the grey screen even when I try to boot from CD, safe boot, or any other commands. I can't even get back into the disk utility.
On a side note, I have the install DVD in the DVD drive and I can't get that out.
Info:
iMac, OS X Mavericks (10.9)
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May 15, 2012
how do i reset admin password if i forgot password and do not have start up disk
Info:
iMac, Mac OS X (10.4.11)
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Jul 4, 2012
It has been a while i havnt used my MacBook Air. I forgot my passwords to enter.How do I completely reset my computer so that passwords are disabled or just reset?
Info:
MacBook Air, Mac OS X (10.7.4), TalkTalk; Huawei Echolife HG532
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Sep 11, 2014
on startup, macbook pro showed flashing gray folder with question mark, but no startup. After several retries, now shows circle with diagonal diameter, and still no startup. worked fine yesterday.
Info:
MacBook Pro
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May 7, 2012
I have Black MacBook with 10.7.3 in it when i press alt/option while starting the laptop the startup manager wont come and OS X boots.
Info:
MacBook (13-inch Early 2008), Mac OS X (10.7.3)
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Jun 6, 2012
I am attempting to select a different startup volume. I restarted my Mac Pro while holding the Option key. The Startup Manager screen never appearded for me to make a selection. I have two bootable volumes on separate internal disks available. I see them displayed in Disk Utilities.Â
Info:
Mac Pro, Mac OS X (10.7.4)
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Jun 19, 2012
6 month old MBP 15", been running 100% fine, plugged it into a projector the other day and it auto changed the screen resolution. I unplugged the device, went into settings and changed my screen resolution back to it's factory size as well as command & the minus key to make sure I wasn't zoomed in on anything.Â
I then did a system update for the following; Airport utility, Safari, Ricoh Printer, Digital Camera Raw, java, Itunes.Â
Restarted the computer as the updates had finished, then when turning back on the loading screen with the grey background, apple symbol and rotating loading symbol was zoomed in as much as the resolution would allow. So i restarted a couple more times, still the same thing - every time i turn the computer on the loading screen is massivly zoomed in, once it's done loading and moves to the log in screen it is fine.Â
I've tried plugging into the projecter again and editing my settings, that did nothing. It's like because i updated while the settings where wonky it's saved it somehow?Â
Info:
MacBook Pro (15-inch Late 2011), Mac OS X (10.7.4), Only on loading screen!
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Apr 5, 2007
My brother's iBook G4 (I think it's a 2003 model) has a problem with the screen. When the computer is turned on, the screen stays black, although the backlight is on (the apple glows). Sometimes, on start up, the screen works normally for a random amount of time before going fuzzy and then black again.
Any ideas on how to fix this? Is it likely to be a problem with the hardware in the actual computer, or just the screen? Or is it a software thing?
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May 28, 2012
How do I clean my start up disk for more space? I have I cloud but don't really use it.
Info:
MacBook Pro, Mac OS X (10.7.4)
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Apr 13, 2010
What the heck is the difference between the integrated GFX card in the first and 2nd 15" MBP?
I can't figure it out
EDIT: Nevermind, it's not even worth figuring it out. It's a $60 difference for the higher spec'd MBP after student discount difference ($100 vs $150 off). I'll pay $60 for that
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Apr 23, 2009
I bought an early 2008 Mac Pro, and I am wondering if it will have the 802.11G or 802.11N graphics card, is there a way to tell?
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May 1, 2009
I replaced my macbook pro last week with a MacPro 8 core.
For the last few days the GT120 graphics card was connected to two 24" dell monitors (2407 and 2408).
The 2407 is my main display and was connected via the display port to a display port to DVI-D adaptor and then to the DVI-D port on the screen. The 2408 was connected using the DVI-D on the graphics card straight to the monitor. This setup was great as I couldn't even tell if my mac was on or off because I couldn't hear any off the fans.
The only problem was that when running full screen video (EyeTV/Quicktime), the picture would sometimes stutter. After looking at the apple store website, a new GT120 was �99 for students so I picked one up yesterday.
The original GT120 is in slot 1 and is connected to my 2407 (main display) via DVI-D, the second GT120 is in slot 2 and connect to my 2408 via DVI -D. Now the problem is noise! I can now hear my mac whirring away all night (MacPro in my bedroom).
Any idea what the problem could be? When i run iTunes visualizer, both displays average at about 63fps and there is no stuttering of the picture. One thing I have noticed (using hardware monitor) is that when play itunes visualizer on full screen the GT120 in slot one uses 22% and the GT120 in slot two uses 99%.
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May 3, 2009
Like is having a higher end GPU only good if you play games? Will it still boost the computers performance even if I do stuff that doesn't involve videogames?
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Jun 17, 2009
I have two issues with my present X1900: it's not going to be OpenGL compliant come September, and more pressingly on a day to day basis, for some reason Eve Online, the game I'm rather addicted to, doesn't like me using two video cards - a stock GeForce 7300 and the Radeon.
I haven't been able to troubleshoot my way to confirming why I have the issue (and I've posted on Eve online forums - no one else seems to have the issue) but I get really odd graphics glitches when I have more than 2 screens 'detected'. Rather, when I have screens on more than 1 video card. I think it has to do with an ATI/nVidia conflict while running a Mac port of the Linux Port of Eve.
So I was hoping to get the 8800 perhaps, but they're getting pretty hard to find. Any other suggestions? Performance-wise I've been happy with the X1900, don't really *need* to upgrade, but I'd like to maximize OpenGL and solve this confilct issue so I'm not constantly climbing in behind my desk to unplug and replug DVI cables - I now run 3x monitors and a projector.
Price counts for me, I'd like to keep this upgrade as cheap as possible - don't use 'Pro' apps. I'm not afraid to flash a PC card if there's decent instructions around somewhere. This is actually a PC X1900 with a custom fan/heatsink fitted (Xcellero X2 or something? It's been a while).
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Oct 8, 2009
i recently purchased a 15" macbook pro on ebay, advertised as the 'NVIDIA GeForce 9400M + 9600M GT with 256MB' model.
so when i opened up system profiler to check the specs, under graphics/displays i see 2 video cards:
Chipset Model:NVIDIA GeForce 9400M
Type:Display
Bus:PCI
VRAM (Total):256 MB
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Oct 26, 2009
The duo mini is actually a pretty nice machine for a web designer or print designer. It may chug a bit with high res files, but it is a pretty great option if you already have a monitor.
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Nov 23, 2009
I have a 7300 gt in my Mac Pro 1,1 and I am looking to upgrade. I am planning on getting a pc card and flashing it but am wondering what is the best card the Mac Pro 1,1 can handle. Should I just stick with the Ati 4870 or can I go bigger.
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