After sleep, mac opens with white screen, have to manually reboot. what's the deal?

after 15 minutes, mac goes to sleep. when I go back to it I have white screen and have to manually reboot.

Hi georgenjr,
Welcome to the Apple Support Communities!
I know this article doesn’t list the exact issue you are experiencing but I would suggest the steps to troubleshoot.
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/ts2570
I hope this helps,
-Joe

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Opens with white screen

When laptop turns on it opens to a white screen.
Can I reboot?

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
Step 1
The first step in dealing with a startup failure is to secure the data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
a. Start up from the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.”
b. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
c. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. The easiest way to deal with the problem is to start up from an external drive, or else to use either of the techniques in Steps 1b and 1c to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If you use a wireless keyboard, trackpad, or mouse, replace or recharge the batteries. The battery level shown in the Bluetooth menu item may not be accurate.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a Fusion Drive or a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 10. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then restart as usual.
Step 9
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 10
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 11
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 12
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

What's the deal with dual processors???

The whole dual processor thing has been bugging me for some time now. If I have a dual 500mhz processor, is it the same as a 1.0ghz processor, worse than one, better than one?! Are there other factors at play? In my limited scope, if you had a dual 500, 533, whatever, it would be the same as a single 1.0ghz - and yet these dual processors are priced much cheaper. I really am at a loss as to how computers do their processing, and how to compare single processor G4's and dual processor G4's when making a purchase.
Insight would be greatly appreciated!

And you shouldn't forget, the future is multiprocessors. There is a limit to miniturization, and the solution seems to be multiplication. So operating systems and applications are increasingly going to be multiprocessor-aware. Maybe a perfect example is the upcoming MacOS release, Snowleopard. Apparently, there will be almost no cosmetic changes. The changes will essentially be 'under-the-hood'. And you can bet, that some of those changes will be increased efficiency with respect to multiple processors.
So what's the deal with airplane peanu...err, dual processors?
The advantage, theoretically is, having more workers to do the work. Your 1ghz processor is like a worker who can lift 100kg, and your 500mhz are like workers who can lift 50kg each.
So where's the advantage? If you have a farm with 40 kg hay bales in the field that you need to pick up, your better off with two workers than one right? Or 8 workers in the case of a 8-core MacPro. So an multiprocessor-aware operating system, doles out the work much more efficiently, spreading the tasks around, or spreading a single task around in pieces (if the app is so written).
You've heard of render farms? The multiple computers used to render the frames of animated movies? Its the same principle. Having computer 1 render the first 1000 frames and computer 2 the next, the project gets done within a lifetime. If they had had only one computer, ToyStory would still not be finished.
Its the future. Just wait till the end of this year for example. Nehalem chips will be sporting even more processors.
Try these;
http://discussions.apple.com/thread.jspa?threadID=1619399&tstart=0
http://arstechnica.com/news.ars/post/20070605-intel-updates-compilers-for-multic ore-era.html
Nehalem; http://techreport.com/discussions.x/12130

Mac stuck on white screen after software update

I updated to snow leopard and then then to 10.6.8. After the updates had installed, my computer restarted and now it's stuck on a white screen. No key shortcuts work at all, I've tried. None of them work. Every time I try to turn it on it's just frozen on a blank white screen. Twice it's gone to the apple logo and been able to start up after 20 or so minutes of being on the white screen but each time it froze. I don't know what to do.

There have been problems with the Apple servers not linking to support articles, so some links may not load the first time.
Startup - Gray, Blue or White screen at boot, w/spinner/progress bar
Startup – Computer Stops or Delays
Startup Issues - Resolve
Startup Issues - Resolve (2)

I have a problem with my mac, lit with blank screen loading bar and then goes out, I need assistencia on line or contact the Technical Support Service in Argentina

I have a problem with my mac, lit with blank screen loading bar and then goes out, I need assistencia on line or contact the Technical Support Service in Argentina

Priscilla,
if your Mac is still in warranty, then you should contact the Argentinian technical support service. If it is out of warranty, then we can try to lend a hand. (We’re just fellow Apple product users here.)

Mac stuck on white screen after booting.

My Mac boots and after the spinning wheel at apple logo vanishes it gets stuck on white screen..
I was running the following commands in terminal when my mac froze and I had to restart it.. After that it is on the white screen..
The commands I ran :
cd Applications
cd XAMPP/xamppfiles/htdocs/experiment
ls -l
sudo chmod 0644 /
And after that my Mac froze and I had to force restart by holding the power button.. After restart its stuck on white screen just before the login screen.

I am able to boot in Recovery HD.. did the repair permissions but that sudo command had affected the entire drive.. Reinstalling was the only option left..
Although I had to do
sudo chmod 0644 /Applications/XAMPP/xamppfiles/htdocs
but ended up pressing the return key just after the first "/"
Thanks for your help.

I have a white screen and i tried rebooting the ipod touch by holding the home and sleep button simoltaneously but it still jus tappears white. i also attempted to connect my ipod to itunes but my itunes wont even recognize my ipod touch 4g

i have a white screen and i tried rebooting the ipod touch by holding the home and sleep button simoltaneously but it still jus tappears white. i also attempted to connect my ipod to itunes but my itunes wont even recognize my ipod touch 4g. What should I do now?

Just let the battery drain until the screen shuts off. When you charge it back up it should boot up normally.

After iOS7 update I cannot launch the music app. It crashes after a few seconds of white screen. What to do?

Just updated my iPhone 5 (16g) to iOS7 and now I cannot launch the music app anymore.
It opens and then just crashes after a few seconds of white screen.
Also If I go to Settings General About the phone crashes all the time after just a few seconds. :-(
Andreas

The same for me. iPhone 4S, itunes match and upgrade to ios7 by air.
So what we have:
1) Music app does not launch (white screen then close)
2) About screen crashes (I guess once it tries to calculate music space)
3) Spotlight does not show any results (no care what I set to search in in the preferences)
4) iTunes Match slider can not be set to Off. However, it is possible to logout from AppleID, then it off. But this does not change the situaton at all
5) Podcast app does not launch
I tried to reboot, to sign in with another Apple ID, to turn off itunes Match, to reset all preferences. Nothing helps.
Things to try:
- reset all preferences and content
- reinstall ios7 with itunes from scratch
- switch to windows phone

Apple Hardware Test Stuck with white screen

hy every one..............
i am unable to start the apple hardware test ,i've done anything ,holding d at start up with inserted installation disk,also with holding c........
also inserted application cd....
apple logo appear and after some time with spinning wheel it stuck with white screen....What that means
please help me out....
what can i do???

If you are still using Snow Leopard -
Shut down your computer and disconnect all peripherals (keyboard & mouse if pertinent) from your computer. Now reboot.
If the Mac starts up normally, shut it down again and then plug in one of the peripherals (keyboard or mouse first) and start up your computer again. If it does so successfully repeat the process, adding one peripheral at a time until your Mac acts up. At that point, disconnect the last peripheral you added, reboot your Mac and search the peripheral vendor's website for an updated driver.
If no driver exists or the problem remain after installing the new driver, try a different cable or a different port on your Mac.
If none of the above works, again disconnect all peripherals from your Mac, hold down the "shift" key to start up in "Safe Boot" mode.
If the Mac starts up correctly, restart without pressing the "shift" key.
If your computer still does not start up properly, shut it down and restart it while holding down the Apple+Option-P-R keys; keep holding "all 4 keys" down until you hear the startup sound "twice."
If none of the above work Disconnect all peripherals from your computer. Boot from your install disc & run Repair Disk from the utility menu. To use the Install Mac OS X disc, insert the disc, and restart your computer while holding down the C key as it starts up.
Select your language.
Once on the desktop, select Utility in the menu bar.
Select Disk Utility.
Select the disk or volume in the list of disks and volumes, and then click First Aid.
Click Repair Disk.
(If Disk Utility cannot repair, you will need a stronger utility (3rd party) - Diskwarrior or Techtool PRO)
Restart your computer when done.
Repair permissions after you reach the desktop-http://docs.info.apple.com/article.html?artnum=25751 and restart your computer.
Remove any 3rd party ram.
Reinstall Snow Leopard - This will install a "fresh" copy of Snow Leopard without archiving old system files but leaves the rest of your files in place.
If your computer is still under warranty or you have Apple Care, take full advantage of it by letting tech support deal with your problems. It's what you're paying them for.
Out of warranty - take the computer to an Apple store or an AASP. Whichever is more convenient for you.

Mac Mini blank white screen. Did Cmd+R reprograms but doesn't leave the white screen!!

Mac Mini blank white screen. Did Cmd+R but doesn't leave the white screen! I tried Cmd+Option+R, this allows reprogramming but after 34 or so minutes it remains in the white screen! Any ideas?

Unfortunately, the white screen will not go away! Therefore, I do not have the option to the Disk Utility!! I wish I could! I would have already erased the disk and reinstalled the OS. Side note here is that an Apple Fan told me that she and her husband had a similar scenario with a new iMac!! Turned out (after 3 attempts by Apple Techs to fix) to have to replace it! They related to me that there was an issue with the connections between the Logic Board and the Hard Drive! The hard drive got burnt out and so did the Logic board on different occasions. I have been a PC user for years until I got tired of all the maintenance and wanted to try Mac. So many thrilled fans claiming they never get issues as often as a PC. Well, here I am six weeks after buying the Mac Mini having issues...I guess a machine is a machine, is a machine! I was thrilled with the Lion OS and all the interaction I was having with it! I truly thought that this was a highly superior computer. I expected quality control to have equally a superiority that one would expect from an Apple product. It could be that this unit is a lemon! It happens! Because I also have iPad and iPhone that have given me the best performance ever!! So I hope that I will someday see the same from this Mac Mini that is just over 40 days old!
If you know another way to get thru the white screen to get to the Disk Utility...I would love to try it. In any case, I am waiting for a call back to confirm an appointment date and time to visit a Mac store for repair.

Adobe Windows Fireworks CS5 opens to white screen

I had Adobe Creative Suite 5 Design Premium installed and working fine for over a year. All of a sudden today when I click the icon to open Fireworks it opens to a blank screen "white".
I can see my icons for Windows 7 at the bottom but nothing but a white screen. It appears Dreamweaver is doing the same. I tried uninstalling FW and re-install and the problem
continues. Help

I checked the above article and it wasn't relevant to the problem stated at the beginning of this article, first off that person was using an iPad (there is no blue icon on the right side of the browser window on a computer) and 2nd, what is needed is preventing small images opening in full screen mode instead of the image loading in screen the same size as the image. The above article shows how to get in and out of full screen mode but that doesn't address the issue in the original post because the image is still placed on a too large screen. When the image is only 3x2 inches you don't need the page opening as large as a full size screen on a 27" monitor. When that happens you have to click on the tiny, miniscule, hardly attainable 1 pixel spot at the lower right corner of the screen and resize the page manually so it doesn't take up the whole screen so you can see the other documents. when you are opening multiple images this is very annoying.
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Mac Book with Additional Screen

I have mac book with external screen. I have attached cables to screen and have power. How do I get screen from mac book to show on larger screen?

I wonder if you are asking how to get any image on your external screen at all (rather than how to make it mirror your MB). You did not say what connection you are using (VGA, HDMI or DVI), not whether you get any response from your external screen, but the first place to go is to the Displays panel in System Preferences. There, you should be able to see that the external display is recognized and you can select its resolution and position it in relation to your PB screen (or set it to "mirror") if wanted.

When i click on messages the application opens a white screen and don't open it.

when i click on messages the application opens a white screen and don't open it.

Hi aldamtgf,
Thanks for visiting Apple Support Communities.
If Messages is only displaying a white screen when you open it, first force close the application using this method:
Double-click the Home button.
Swipe left or right until you have located the app you wish to close.
Swipe the app's preview up to close it.
These steps come from this article:
iOS: Force an app to close
http://support.apple.com/kb/ht5137
If Messages still does not open normally, restart your iPhone next:
iOS: Turning off and on (restarting) and resetting
http://support.apple.com/kb/ht1430
All the best,
Jeremy

I have recently purchased my mac book with retina.i have explore all the feature but couldn't able to understand how to use my facetime. plz assist me

i have recently purchased my mac book with retina.i have explore all the feature but couldn't able to understand how to use my facetime. plz assist me
rahul

Greetings rahul81,
After reviewing your post, it sounds like you want to know how to use FaceTime. I would recommend that you read this article, it may be able to help the issue.
FaceTime for Mac (Yosemite): Make and receive FaceTime calls
Thanks for using Apple Support Communities.
Take care,
Mario

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Hi There,
I purchased a new iPhone 3GS from iStore in India on 27th Dec 2011 and got a problem saying phone was getting restated automatically. Later got a new device replaced by Apple and now it started a new issue from the day one, with a temporary white screen of death.
It happen, whenever the phone is kept on stand by for a longtime, mostly in nights. Further after receiving a call/text kept the phone idle and by the next call come phone turns white and to get rid of it need to press power button once and then press the home button.In the white screen mode touch is not responsive.
Please let me know what can i do. Tried restoring device from back up, via itune... everything is done. but not getting a solution.
Is it the problem of iOS5.
Any help... please suggest.
Thanks
Venkat

Hi... Posted there please try to upgrade your OS, I hope this will resolve your issue but if it doesn't please reach out to a nearest apple care and check for a solution, as ur phone is from US, these guys cannot help :(

After sleep, mac opens with white screen, have to manually reboot. what's the deal?

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