Software :: No Login Window Just A Blue Screen?

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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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.

[URL]

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:
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Jan 7, 2009

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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:
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// 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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Dec 26, 2008

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no interval found for . Using 8000000 

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