Mac Pro :: Login-window Crashes With Blue Screen And Sudden Log-out?
Apr 2, 2012
I have faced some known symptoms of a problem for which I was not able to find any sound resolution. I have an account with which I am unable to login. When I enter login details for a session, the system immediately kicks me out showing a blue screen, logs out and goes back to the login window. An interesting observation during a sudden logout is that I spotted a vague image or window of an open application (probably Finder) at the background which is like 95% transparent in comparison to the Mac's desktop and therefore barely visible. The white-ish edges of that window is more distingushable though for a short duration.
I can ssh to this username and work remotely. But there is another username which has not been affected with this issue and works fine. The console logs show that loginwindow process is crashing everytime. Look at the output below. There have been notes with similar effects but with specific causes (e.g. MS Excel 2004 inc Rosetta, Blootooth peripherials, eBook Studio, Photoshop CS3 etc.) which might be related cases.
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I have already tried booting in Safe Mode, deleting loginwindow.plist without success.
Process: loginwindow [52]
Path: /System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow
Identifier: loginwindow
Version: ??? (???)
[code].....
Info:
Mac OS X (10.4), Unlimited Client Server
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Apr 22, 2010
I love customizing my Mac and tinker with its preferences so I guess I had this one coming, although it's my first major mistake.
I'm running Mac OS 10.5 and I downloaded a loginwindow.bundle from deviantart to customize my login window but I realized too late that it was for Snow Leopard. What I ended up doing was:
- I replaced the original loginwindow.bundle with the one I downloaded; and
- I replaced the original com.apple.loginwindow.plist with the one included above.
- Thankfully, I made a backup of the original files which I kept in my Documents folder.
I then logged out and ... the login window never appeared, just a black blue screen and that round loading thingy at the bottom. I'm sure that's the only cause of my problem. (If it helps, I don't have autologin enabled, so I have two accounts to choose from before I can login.)
I've tried booting in single user mode and in safe mode but neither works.
I've narrowed down my options.
1. Use some commands in single-user mode to replace the new loginwindow.bundle and loginwindow.plist with the old ones, which are in my Documents folder (like in Terminal). Thing is, I don't know how to do this, if ever it's possible; OR
2. Use my Bootcamp partition (thank God for Bootcamp!) to manually do the abovementioned option with Transmac, which I already tried. Unfortunately, I can't write to my Mac OS partition since it's read-only, which leads me to the problem of having to change it to read-write via single-user mode.
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Jul 15, 2010
After what seemed to be an improper shutdown my Macbook will not boot. I have tried using fsck to no avail. Booting to the leopard dvd causes it to restart. Flashing PRAM doesnt seem to help and it will not boot into safe mode.
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Sep 28, 2009
I am on a brand new 3.06 GHz iMac. Installed Snow Leopard, 10.6.1. In general I don't experience any of the problems other people seem to have. But twice now my screen has turned blue while I am in the middle of something. All the open apps disappear and the Finder seems to relaunch. It only takes a few seconds. I don't have steps to reproduce it. Both times I had several apps open and had video/DVD running in the background.
Has anybody seen this?
I am a notorious file-saver which means I haven't lost much work through this but if it keeps happening I might have to go back to Leopard.
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Jun 19, 2010
My parents bought my younger sister a new MacBook a couple of days ago. She wanted me to install Windows on it so that she could play some games that she has.
So, I ran Boot Camp assisstant and installed Windows XP. XP itself runs fine. However, when I put in the disc from her MacBook that installs the Boot Camp drivers it gets to about Cirrus Audio (or something) and then crashes to blue screen. I tried installing the drivers a couple of times and then tried to reinstall XP and try again.
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Jan 8, 2010
Today my imac done something wierd. When powering on it got to the blue screen before the password login and it just froze on the blue screen. I done a hard restart and rebooted a few times. Didn't do it any more after that.
Should I be worried? It's only a few months old.
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Jan 7, 2009
My iMac G5 (running 10.4.11) freezes at the blue screen, after recognizing the mouse, but before the login window. Some form of energy saver must be working because after the blue screen dims, moving the mouse will brighten it.
Steps I've taken:
Hardware test - everything passed (RAM, logic board, airport, display, etc...)
Zeroed the computer (7 times) and fresh reinstall
I CAN boot up in Safe Mode, Single User Mode, and Verbose mode. I can boot from CD, Knoppix CD, and into Target Disk mode (thank god for this MacBook I'm on now...)
Here's the system log (I've edited in comments and out personal info):
// reboot and power on
[SIZE="2"][FONT="Tahoma"]Jan 6 21:19:02 users-imac-g5 shutdown: reboot by user:
Jan 6 21:19:02 users-imac-g5 SystemStarter[102]: authentication service (110) did not complete successfully
// gray apple screen with spinning progress bar
Jan 6 21:19:35 localhost kernel[0]: standard timeslicing quantum is 10000 us
Jan 6 21:19:35 localhost kernel[0]: vm_page_bootstrap: 124630 free pages
Jan 6 21:19:35 localhost mDNSResponder-107 (Mar 20 2005 20: 31:47)[38]: starting
Jan 6 21:19:35 localhost kernel[0]: mig_table_max_displ = 70
Jan 6 21:19:35 localhost kernel[0]: 89 prelinked modules
Jan 6 21:19:35 localhost kernel[0]: Copyright (c) 1982, 1986, 1989, 1991, 1993
Jan 6 21:19:35 localhost DirectoryService[36]: Launched version 1.8 (v346)
Jan 6 21:19:35 localhost kernel[0]: The Regents of the University of California. All rights reserved.
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Aug 31, 2010
My Mac OS x is stuck on the blue login screen. I have tried unplugging, cmd-alt-p-r which still takes me to the login screen, held down until I heard the chime three times as suggested but went to login screen. Tried going in to safe mode by holding down shift key at start up still took me to login screen. Tried to fix with boot disc and nothing comes up. By the way I wasn't really doing anything. Was checking my emails but hadn't even clicked on one when the screen totally froze. When I powered down it came back to email page. I had to force a shutdown several times and no can't get past login screen.
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Sep 11, 2010
I have a macbook with tiger software. I used it recently and the internet and itunes were intermittently freezing. I shut the computer down and when i tried to turn it on again, it gets to the logon stage,recognises my logon, but then it goes to the blue screen and nothing happens.
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May 29, 2012
After upgrading from Leapard to Snow Leapard a few weeks ago on my macbook there has been a blue screen flashing before the login screen. Is this normal? Or am I being peranoid? could it be that i installed app cleaner? I unistalled app cleaner and it still did the same.
Info:MacBook, Mac OS X (10.6.8)
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Feb 19, 2009
Everytime I start skype while in windows, the computer crashes and I get the blue screen... I think it has to do with the sound drivers, because when I'm using msn messenger also in windows suddenly the microphone mutes itself.
I tryed updating the realtek drivers with no help, updated skype, no help, I uninstalled the realtek drivers and the laptop did not crash anymore but I had no sound, any advice like for example how to get the microsoft drivers to work on the laptop without using realtek??
For whatever reason with the microsoft drivers,I think the sound is trying to come out of the digital outlet, I can see the ligth inside the jack, but nothing comes out of the laptop's speakers...
By the way, the vista version is Home basic.
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Dec 26, 2008
I created a new user the previous evening and shut the computer down as normal, now when i start up I get nothing but a blue screen no login in screen nothing. I tried going into the command as root, have done fix disk errors no problems there, then tried lunchctl load/Users/System/Library/LaunchDaemons/com.apple.... plist cant rember the bit in between. I did this from the apple website, but all i get is no file to load, so anyway continued to do ls users/ get the names and tried reseting the password for the login's and i get a odd error. I have no idea where to go from here, as i cant find the original discs, can i use mybrothers os x 10.5 discs to re-install and save the files i want to keep and do a clean install?
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Dec 22, 2009
Have searched forums and found no direct answer for my Q which is ...
How do I change the background fill on the login screen window from solid to transparent or translucent?
Reason is cosmetic ... solid window is screen centered and blocks too much of HD wallpaper.
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Sep 23, 2010
I have an old G4, think its a powerMac, not sure. It was given to me. When i try to boot up, its loading up, but its stuck at "login window starting" screen.
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Mar 7, 2012
when I tried to launch the macosx lion, after display the login window, the whole window become black.
Then I inject the U-Disk that has MacOSX Lion Installer in it, after the white screen, it become black too. So I can not re-install macosx.
Then I tried press `shift` at login. It also didn't solve the problem. At last I tried the single user mode. It appears some problems:
... USBF ... The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of Hub at 0X24000000)
no interval found for . Using 8000000
USBF: 9.62 AppleUSBEHCI[0Xffffff800ba92000]::Found a transaction which hasn't moved in 5 seconds on bus 0X24, timeing out!(Addr:0, EP:0)
...(it appears 5 times)
USBF: 51.642 [0Xffffff800c4eaa00] The IOUSBFamily was not able to enumerate a device.
Info:
MacBook, Mac OS X (10.7.3)
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Mar 28, 2012
I'd like to set the screensaver to the loginwindow. But I'm not sure. Is it save? Or are there some risks? And how can I disable the screensaver at the loginwindow? (I haven't got workgroupmanager.)
Info:
MacBook
Pro, Mac OS X (10.6.8)
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May 9, 2012
recently a friend of mine offered to update my 2009 MacBook to Mac osx Lion. when I received the computer back from him, it required a rather large update that has put my MacBook in a terrible state.
upon rebooting from the update, it froze at the grey Apple loading screen, and of course I thought nothing of it and gave it a little restart. Since then I cannot get it past the grey screen or the login window. it seems as though I cannot type in my password or click 'sleep' or any option the window gives me. I've been working on this issue all day, and I've tried countless things from the apple support community, with no avail.
I've tried clearing the cache, I've tried safe mode, I've tried the command+option+control+enter trick on the login page, I'm even trying to boot from the install disc my friend gave me...and it's just refusing to move past the grey screen.
Info:
MacBook, Mac OS X (10.7.3)
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Jul 11, 2009
I have a late 2009 Mac Mini with 8GB of OCZ 1333 RAM and an Intel X25-M 160GB SSD. Running 10.6 fully updated and installed from scratch.I have been getting out of the blue crashes while the system is most of the times idle. Can it be the RAM? It's reported fine as 8GB 1333 DDR under the system info. The Intel SSD runs latest firmware.
This is the log from the last crash which happened a little ago.
Interval Since Last Panic Report: 139426 sec
Panics Since Last Report: 1
Anonymous UUID: 01A96B0F-D497-443A-8E19-9111DF3604EE
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Mar 29, 2012
I have iMac 27 and screen problem on start up i have blue vertical lines, when it start i have a lot of blue dots and nothing else. when I connect outside monitor its showing the same.
Just installed lion and still the same problem when it starts blue dots, when startup in safe mode loads of blue lines and dots on the screen.
Info:
iMovie (iOS), Mac OS X (10.7.3)
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Dec 19, 2010
When I turn on lap top (iBook G4 Mac OS x 10.3) i get the following message "Login Window Starting" I followed Apple support guidance - specifically safe start and performing the fsck then reboot process and neither works for me. I don't have the disks any more so I cant use them for reloading the software. I want to sell the laptop so i just want to format the HD. Is it possible to format from command lines?
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Apr 13, 2012
My login password does not work all of a sudden. I have changed my Apple ID password several times but it has not helped. What should I do?
Info:
iMac, Mac OS X (10.7.3)
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Sep 17, 2010
while i am using my macbook the screen will suddenly go blue and flash between different blue colors like it is trying to work. sometimes it comes back on but most of the time it stays like that. I have to force shut down with the button and then restart...about half the time it is still flashing blue after the restart and if it does work, it goes blue eventually.
dont know if its a problem with the screen or what because the computer continues to work...if there is a movie on, you can here it in the background and the screen just flashes.
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Jan 1, 2010
I just got a new mid 09 macbook pro no matter how I calibrate the screen. the dark/deep blue will always look like purple colour.
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Feb 13, 2010
when i had leopard i had changed my login wallpaper to something else besides that old pic but when i upgraded to snow leopard it is just blue and it wont change.
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Aug 26, 2014
I'm running a late 2009 iMac, 2.8 GHz Intel Core i7 with 8 GB memory with 27 inch ATI Radeon HD 4850 512 graphics card running 10.9.4 OSX.
I will get spontaneous crash of the system that causes small blue squares over the entire screen. The problem will resolve after 1-2 restarts. I ran the system diagnostic disk and found no problems on the long and short versions. It is an intermittent problem as the display and system are running fine now but daily will have the crash occur. Once the spots are present the computer will be frozen with no response to keys or mouse.
Info:
iMac (27-inch Late 2009), OS X Mavericks (10.9.4)
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Jul 4, 2012
Every time I try to login into the iTunes store iTunes chrashes en restarts. Then I get the screen to login for automatic downloads but my password doesn't get accepted. After a few tries iTunes crashes again and restarts. Force quit iTunes doesn't work. It keeps restarting.
Info:
iMac, Mac OS X (10.7.4)
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Jun 20, 2008
Hi! Im new to the forums but i really need help with something and i was hoping someone here could help me out. So I just installed Tech Tool Deluxe onto my macbook and then shut it down later. I went back to use it again and when i turned it on a login screen appeared asking me to put in my password. I did that and the screen turned blue (looking like it was loading) and then went back to the login screen. Every time i put in my password it just takes me back to the login screen. I have had my mac for a while and i dont want my hardrive to get wiped out so what do i do? Thank you for looking
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Dec 29, 2008
I can't seem to deactivate the automatic login that occurs upon opening my MacBook. It worked fine on my previous OS X installation, but now the login window will not appear. I've tried adjusting differing Login Options settings and restarting.
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Mar 29, 2012
I have a Mac Mini running 10.7.3 that I made the mistake of unchecking the show input menu in login window. Now I can't log in at all. I have tried to delete the "com.apple.loginitems.plist" using screen sharing, Lion in all its wisdom tells me I don't have permission.
I then tried to create a start up disk on one of my 2TB disks, somehow the system wasn't installed, just all the included apps. I then tried reinstalling lion on the Mac Mini, after over an hour it restarted with the same blank screen. Now when I go to the App Store Lion is no longer available to me.
Info:
Mac mini, Mac OS X (10.7.3), 4Gb, 500Gb Internal HD, 6Tb extHD
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Jan 20, 2009
When i try to select an standard Apple screen saver in my preference panel it crashes. I can select screen savers that i imported myself.Anyone got some ideas what might causing this?i got this crash report.
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