Login screen is blank

Once my screen saver begins and I then wish to use my laptop again i tap the mouse pad and my screen is blank. As i move my mouse it slowly uncovers my screen pixel by pixel until i am able to enter my password and login. Any info provided would be great.

used terminal command: sudo defaults write /Library/Preferences/com.apple.loginwindow DesktopPicture "/Users/your_user/Public/myloginwindow.jpg" ommitted 'your_user' in lieu of my username and pic name. Ensured pic is 1280x800 .jpg (does that even make a difference btw); put it in my user public folder; ensured setting took in com.apple.loginwindow.plist; it did; Reboot. Still solid blue background. Sigh... what could be causing this?
BTW, all secrets supposedly does is change this file location, same as sudo command in bash. It's possible the 1st time I did it the pic res didn't match my screen res, should that matter? At worst, I'd think it wouldn't work, but not cause this...
Message was edited by: hakujin

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My login screen is blank/solid monochromatic. I can't change it...

Ever since I started messing with secrets pref pan, it's been nothing but trouble. It's supposed to me a GUI too to most common/popular command line hacks. So far it's been 0 for 2.
DS_Store files still propagated to Windows Shares despite hack... think I resolved that with doing hack manually, but what's really bothering me is my login screen. Ever since I changed it to another .png in Secrets it's been blank, a blue/grey hue solid color. Since then I've tried replacing the library file directly with another file, and no go.
I think the location where it looks has changed. I tried doing it the manual way here:
http://osxdaily.com/2007/02/22/customize-the-mac-os-x-login-screen/
but no go... I can't even see the spacey background anymore. Can anyone help me to get back to square 1?

used terminal command: sudo defaults write /Library/Preferences/com.apple.loginwindow DesktopPicture "/Users/your_user/Public/myloginwindow.jpg" ommitted 'your_user' in lieu of my username and pic name. Ensured pic is 1280x800 .jpg (does that even make a difference btw); put it in my user public folder; ensured setting took in com.apple.loginwindow.plist; it did; Reboot. Still solid blue background. Sigh... what could be causing this?
BTW, all secrets supposedly does is change this file location, same as sudo command in bash. It's possible the 1st time I did it the pic res didn't match my screen res, should that matter? At worst, I'd think it wouldn't work, but not cause this...
Message was edited by: hakujin

White screen and progress bar on login screen

Hi
I recently upgraded my Mac Air 2012 to Yosemite. That went fine with no issues. I then turned on FileVault and left the computer to encrypt and optimize the system drive overnight. I woke up this morning to find that the computer had crashed and automatically restarted sometime during the night. The FileVault screen in System Preferences says that FileVault is on for System. I am hoping that this means the the encryption and optimization process completed before the crash.
I only ask as now, whenever I login to my Apple Air, the login screen is blank white. When I enter my password a progress bar appears beneath the password box. When this progress bar has reached its conclusion, the computer logins in to my account and I can use it without issue.
I know that this white screen should not be there as I recently upgraded my Macbook Pro to Yosemite and activated FileVault. I can now login to that computer on a screen with a blurred image of my desktop behind it. Once the password has been entered, there is no progress bar, I am just immediately logged onto the desktop.
Any idea what might of happened and how this can be solved?
Ta.

Having spoken to Jigsaw 24 Tech support have solved the problem - just needed the PRAM resetting.

[SOLVED] Login Prompt Vs Blank Screen On Startup

Hello there,
Problem:
- When booting into Arch I am either presented with the Login Prompt (Yay!) or a blank back lit screen (Boo!). The pattern is completely random. I can boot up 2-3 times in a row successfully then go on a streak of blank back lit screens and am forced to constantly reboot until I get it to work (see below):
Boot Attempt => Result after selecting Arch from Grub
1) Blank screen
2) Blank
3) Blank
4) Login prompt
5) Login
6) Login
7) Login
8) Blank
9) Blank
10) Login
11) Login
12) Blank
13) Login
14) Blank
Its a fresh install up until this point in the procedure, Arch Wiki Beginners Guide, so no graphical elements have been installed yet only thing I have installed is firmware for the wireless Broadcom (which is working fine).
Display: Intel Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
Network: Broadcom BCM4311 802.11b/g WLAN (rev 01)
CPU: Core Duo ~2Ghz x86
RAM: 1.5GB
Memory Test: Success
sda
|------sda1 (Windows XP)
|------sda2 (NTFS partition [No OS])
|------sda3 (Arch i686)
|------sda4 (Swap)
Search regarding blank screen turned up this thread, https://bbs.archlinux.org/viewtopic.php?id=151240 , which seemed relevant. It led to KMS though not sure exactly what that does even after reading the Wiki so I decided to post here rather than tinker with it and risk making things 100x worse than they already are.
Any idea as to what could be causing my irregular boot behavior?
Last edited by notyourbuddy (2013-01-01 04:07:28)

cfr wrote:Although that thread seems similar, I'm not sure how this could be the same issue as I thought KMS required a suitable video driver. Still, you could try passing nomodeset on the kernel command line as described in that thread. The worst that will happen is that it won't work. (You can edit the line from the grub menu so if it doesn't work you can just reboot and be back to the same settings you had before.) I guess you'd have to boot a few times to know if it helped.
Hmm, that seems to have fixed my problem. 9 successful reboots in a row. Figured with my erratic boot behavior as opposed to 100% blank screening that my problem was far worse when in fact the solution seems to have turned out to be quite simple. Oopsie. My bad guys.
Followed these steps to make the changes persistent, https://wiki.archlinux.org/index.php/Kernel_parameters , and seems to be holding up well. Will go ahead and marked as Solved and hope no more monitor boot problems arise.
cfr wrote:So just to clarify: you have not installed any video drivers at this point, correct? And you haven't installed X? You definitely only have one graphics card?
Nope. Nope. Yep.
cfr wrote:You can try examining the log files to see what is happening on successful versus unsuccessful boots. journalctl will let you do this and you can filter it with various options.
Cool, first time I've heard of this and just tested that out. Looks to be a wealth of information. Will have to remember this next time I have boot woes.
Last edited by notyourbuddy (2013-01-01 04:12:26)

Blank WiFi login screen at various public hotspots

Whenever I'm at a public hotspot that requires a login (like, say, a Panera Bread), my iPhone detects the network, then pops up a Login screen. The problem is, that screen remains blank -- I never get as far as being able to actually log in.
I've tried resetting my network settings, resetting my phone, etc. -- no soap.
A possible clue: The *one* time it seemed to work was when there was no available cellular connection. Then the Wi-Fi login screen actually appeared. But when the cellular connection was recovered, I again found myself unable to connect to that Wi-Fi network.
Help!
TIA...

OK, I believe I may have solved this
When you can't log into public WiFi ...
with an iDevice running iOS7…
because the Server times out ...
or the login/registration page just won't load ...
********Simply do this***********
Go into settings> WiFi and tap the little info icon for the network you are trying to join
If you see two slider buttons, these are the cause of your woes
One says "Auto Join" (or similar) - you can leave this ON
The second button is "Auto Login" - you must turn this OFF (slide it left so it is grey not green)
Now go back and reselect the network.
If the login page doesn't come up automatically, open a Safari window and enter any address
Bingo!
I have reproduced this issue and solution in 100% of the public WiFi spots which I could previously not access. Please not that I also have "Block Pop-Ups" turned OFF in Settings> Safari, though I do not know if this is a necessary step.
I have filed a bug report with Apple. Feel free to contact them yourselves if this workaround works for you.
Also, please mark this as "Solved" if it works for you so that others will know how to connect to public WiFi.
Peace y'all

Getting blank screen instead of login screen for HFM

Hi,
i am trying to login into HFM, once i click the launch application, i am getting the Blank screen? i am not getting the login screen.
what is the possible reason for this error?
Thanks in advance
Kiran

Are you able to see the log in screen of Shared Services?
Rgds
Payous999

Getting blank screen instead of login screen for workspace

Hi,
i am trying to login into workspace, once i click the launch application, i am getting the Blank screen? i am not getting the login screen.
what is the possible reason for this error?
Thanks in advance
Kiran

Hi John,
Thanks for response.
if proxy settings are wrong not able to connect to any web related or we can not access only particular?
john, is there any chance java related problem for getting blank login popup browser.
Thanks in advance

He 19 2113 I can login but screen is blank

I've tried restarting/rebooting f10 and f8 and f5 saving changes restoring defaults and nothing works. I can login but the screen is blank.

Hello @susie528,
I understand that when you start your HP 19-2113w All-in-One Desktop PC running Windows 8.1 it is to a blank screen. I am providing you with an HP Support document: Computer Starts but Monitor Remains Blank (Windows 8), which has been designed to address the issue you are describing. I would suggest you review the document and apply the steps set out within.
I hope I have answered your question to your satisfaction. Thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
Dunidar
I work on behalf of HP
Find out a bit more about me by checking out my profile!
"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

Blank Login screen - DNS issue

At my company's site we seem to be experiencing an intermittant blank login screen but only for the microsoft sign in page, the Skype sign in page loads up fine.
When skype loads up we get this screen:
And the users choose "Microsoft account". They should then see this screen:
Instead they get this:
At the bottom there is a warning message saying the following:
"This page contains errors. Go back"
The site is using OpenDNS to filter DNS queries for the PCS and the policy is fairly locked down.
On any affected PC, if I:
- Close Skype
- Point the DNS settings to something like 8.8.8.8 (google's DNS server)
- Load up skype
The login screen (image 2) loads up normally. The user can login and I can then flip back the DNS settings to the OpenDNS server and there are no further issues.
What this means is that Skype is trying to contact a Microsoft/Skype server somewhere on the interent and because it is not on my OpenDNS whitelist it gets blocked and fails like in image 3.
My question is can anyone tell me what the server is? I went through the OpenDNS logs and whitelisted a bunch of microsoft stuff and some other things related to certificates but still no luck.
Solved!
Go to Solution.

Evetually I took Techfreak's suggestion and sniffed the packets with wireshark. Was annoyed to discover that the root cause of the issue was suspiciously named sb.symcd.com.
Some quick Google-fu led me to a page which advised that this domain should be whitelisted for Lync installations. Hmm.
Why microsoft could not use more intuitive/descriptive server names is a mystery. Anyway, I whitelisted *.symcd.com and from the limited testing it appears to be resolved.

Blank login screen on the iPad keeps popping up and wifi disconnecting after 20 seconds

hi, we have an ipad running IOS 5 that keeps having a blank login screen on the iPad keeps popping up and wifi disconnecting after 20 seconds.
I am yet to find out why this is, any clues? (note that both apple.com and facebook are blocked at the router, but nothing else)...

actually we cannot due to policy reasons... it appears through testing that the iPad is phoning home and sending private data to Apple regardless, it is also odd they placed these PRIVACY settings in About hidden away so that no-one knows they are there.
From the iPad homescreen, tap on Settings > General > About
Tap on "Diagnostics & Usage" > select "Don't Send"
So... anyone else know why if we block Apple, the iPad disconnects from the internet via Wifi?

Blank screen after login screen to Hot Mail, Outlook, Live Mail

Hotmail.com, live.com, login.live.com, mail.live.com and outlook.com allowed in white list. Can get login screen, enter username and password then screen goes blank.

Make sure that you do not block JavaScript.
Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do NOT click the Reset button on the Safe Mode start window or otherwise make changes.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
Reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.
*Press and hold Shift and left-click the Reload button.
*Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
*Press "Command + Shift + R" (MAC)

Upgrade to 4.1 results in blank login screens

So I started with a fresh Windows 2008R2 server and installed 11g (11.2.0.2). Then I got the embedded PL/SQL gateway up and APEX functioning (pre-installed 3.2 version). I ported over an existing 3.2 application schema from a production box and that worked fine. Now I'm trying to upgrade to APEX 4.1 and I'm running into problems.
ran apexins.sql just fine - no problems. Check came up clean (no errors) and upgrade was complete, but when I went to run an application, I get blank pages. My application comes up with the home page, but login doesn't work. The Admin login shows a blank page (view source does indicate a page being generated), as does the Developer login.
I ran epgconfig and it showed the ANONYMOUS user as locked/expired, so I unlocked the account and changed the password, but this didn't do anything. I have tried to run apxldimg to load the images, but it fails each time with the same error:
SQL> @apxldimg.sql /Install/Oracle/apex_4_1_EN
PL/SQL procedure successfully completed.
old 1: create directory APEX_IMAGES as '&1/apex/images'
new 1: create directory APEX_IMAGES as '/Install/Oracle/apex_4_1_EN/apex/image
s'
Directory created.
declare
ERROR at line 1:
ORA-22288: file or LOB operation FILEOPEN failed
The system cannot find the path specified.
ORA-06512: at "SYS.XMLTYPE", line 296
ORA-06512: at line 15
PL/SQL procedure successfully completed.
PL/SQL procedure successfully completed.
Commit complete.
timing for: Load Images
Elapsed: 00:00:05.71
Directory dropped.
SQL>I unzipped the files into the G:\Install\Oracle directory and renamed the directory to apex_4_1_EN as it is the English-only download and I had the full version unzipped in the same location. I have tried different versions of the path and even ran the script from the ORACLE_HOME\apex directory in addition to the unzip location - no dice.
Please help.
PS to Oracle: Why are these upgrades/installations so temperamental? I've been working oracle from 9i up and every single upgrade is a major headache! (probably because the documentation is so cumbersome)

So it would really help in the Oracle documentation if they would provide a completely separate UPGRADE guide as opposed to an INSTALLATION guide, as the instructions are significantly different!
Here's what to do:
1. Shut down any APEX-related processes or services including the HTTP server (if you are using it).
2. Unzip the 4.1 download file to any location of your choosing.
3. Rename the ORACLE_HOME\apex directory to indicate the version you are currently on (apex -> apex_3_2, etc.)
4. Copy the entire unzipped folder called apex from the new download to ORACLE_HOME. You should now have TWO apex directories - one versioned for backup purposes.
5. Now you do the upgrade. Set your prompt to start from within your ORACLE_HOME/apex directory
a. First run @apexins.sql to install the new schema and all the necessary objects.
b. Next use the @epgstat tool to show you the status of your installation and users. Make sure the ANONYMOUS user is unlocked and OPEN. Also make sure that you have given permissions to the APEX_PUBLIC_USER and configured access to XMLDB. Change the password to the ADMIN account if necessary.
c. Now you should be able to run the apxldimg.sql script and have it complete without error. I used the full path of the ORACLE_HOME.
6. Restart any processes.
7. Bring up the administration login page at http://localhost:port/apex/apex_admin. (You need to substitute for whatever port value you are using and optionally substitute for localhost.)

How to enable login screen which doesn't require a password

I'm setting up an image for a computer lab. The computers that are currently in this lab auto login. However, in the off case that a student accidentally (or maybe purposefully) locks the computer, we want them to be able to simply click the user account
picture and it logs in without asking for a password. The current Windows 7 PCs in this lab work that way, but whoever set them up can't remember how this was accomplished and I can't figure out for the life of me how to get it done. Currently, if I lock the
PC, it just brings me to the login screen with a blank username & blank password field.
These machines are not on the domain. Does anyone have any idea how to get this behavior out of the login screen?

BYPASS LOGIN
Open a Run window (Windows Logo key+R), type netplwiz and press Enter. Remove the tick from “Users must enter a user name and password” > OK. You may have to type the user account name/password just the once to complete the process.
BYPASS ENTERING A PASSWORD AFTER WAKEUP
To bypass entering a password after hibernation, go to Control Panel > All Control Panel Items > Power Options > Require a password on wakeup (in the left pane) and put a check mark in Don’t require a password.
Ninety-nine per cent of politicians give the rest a bad name.

Running FF 17 I can no longer see the hotmail login screen. I have tried in safe mode, deleted cache and cookies, etc.

Running any version of FF I cannot see the hotmail login screen. It acts like the page has loaded but it is blank.

Under Web Console I see the following (refreshing doesn't help):
[08:52:44.211] Unknown pseudo-class or pseudo-element '-webkit-scrollbar-button'. Ruleset ignored due to bad selector. @ https://login.live.com/login.srf?wa=wsignin1.0&ct=1354306710&rver=6.1.6206.0&sa=1&ntprob=-1&wp=MBI_SSL_SHARED&wreply=https:%2F%2Fmail.live.com%2F%3Fowa%3D1%26owasuffix%3Dowa%252f&id=64855&snsc=1&cbcxt=mail:6
And
[08:52:44.819] ReferenceError: evt_Login_onload is not defined @ https://login.live.com/login.srf?wa=wsignin1.0&ct=1354306710&rver=6.1.6206.0&sa=1&ntprob=-1&wp=MBI_SSL_SHARED&wreply=https:%2F%2Fmail.live.com%2F%3Fowa%3D1%26owasuffix%3Dowa%252f&id=64855&snsc=1&cbcxt=mail:1

My MacBook Pro does not boot beyond the login screen. I have a full hard drive. Help!

I Have a 15" MacBook Pro with Retina display. I tried to move files off the hard drive when I got a message warning me that the drive was almost full. I shut down, connected an external hard drive to move some files, but on reboot, the screen went blank (white) after typing in my login details. what else can I try to correct this problem?

Go step by step and test.
1. Start up in Safe Mode.
    http://support.apple.com/kb/PH11212
2. Empty Trash.
    http://support.apple.com/kb/PH10677
   http://support.apple.com/kb/PH13806
3. Delete "Recovered Messages", if any.
    Hold the option key down and click "Go" menu in the Finder menu bar.
    Select "Library" from the dropdown.
    Library > Mail > V2 > Mailboxes
    Delete "Recovered Messages", if any.
    Empty Trash. Restart.
4. Repair Disk and Permissions
    Steps 1 through 7
    http://support.apple.com/kb/PH5836
5. Disk space / Time Machine ?/ Local Snapshots
Local backups
   http://support.apple.com/kb/ht4878
6. Delete old iOS Devices Backup.
    iTunes > Preferences > Devices
    Highlight the old Backups , press “Delete Backup” and then “OK”.
    http://support.apple.com/kb/HT4946?viewlocale=en_US&locale=en_US
7. Re-index Macintosh HD.
   System Preferences > Spotlight > Privacy
   http://support.apple.com/kb/ht2409

Login screen is blank

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