Black Screen upon login

After booting up arch I log in and 3/4 of my screen is black with 1/4 of the screen at the top left visible. I am currently using 64 bit arch, and I tried resting all nvidia configurations but that didin't fix the problem. Also the rest of screen seems to be active, however just not visible.
Any ideas as to why this is happening? Thank you in advance.

carl_tw wrote:What kind of graphics card do you use?
Probably nvidia since it is stated in the post.
There seem to be a number of these black screen issues. Have you tried a forum search? I'm sorry but I don't know a solution myself.

Similar Messages

IOS app rejected due to a blank, black screen upon launch

I recently got my iPhone app rejected and the reason is below:
"We found that your app exhibited one or more bugs, when reviewed on iPhone 5 running iOS 6.1.3, on both Wi-Fi and cellular networks, which is not in compliance with the App Store Review Guidelines.
Specifically, the app displayed a blank, black screen upon launch. Please see the attached screenshot/s for more information.
The steps to reproduce are:
1. Launch app
2. Bug encountered"
I use FlashDevelop and the latest Apache Flex + Air SDK 3.7 + swfversion=20. I don't have an iPhone 5 to test on but I've tested the application on a 3GS, iPod touch (4th gen.) on IOS 4.3, 5.1 and 6.1.3 (latest) and the application works on all of them.
The attached screenshot mentioned above is here:
the "blank" screen is actually a deep blue one, which the color I've set to my project's background.
I didn't make any special modifications in the code to support iPhone 5 to be honest, and the project dimensions were set to 640x960, but I did include the [email protected], and it shows inside the .ipa at Payload/Myapp.app/
In almost all the iPhone 5 discussions I've read online, theat launch problem is due to the [email protected] not being there in the root of the release .ipa, but I'm sure it does exist on my ipa. Also, I have request high resolution set to high, and the Info.plist has the correct DTPlatformVersion (6.0) and DTSDKName (iphoneos6.0).
Any ideas what the problem could be?
Thanks.

Remember - they gave you a very specific device and version. It might be working on all other configurations. So if you are unable to get your hands on that device and version you are going to be left stabbing in the dark as to what is going wrong.
My advice would just be to figure out what's different with that device and make sure everything is configured properly.
Another option - if you don't want this app on the iPad anyway - is to remove it from the configuration:
<key>UIDeviceFamily</key>
<array>
<string>1</string>
<string>2</string>
</array>
You would delete the <string>2</string> part.

Black screen after login / after sleep

Hoping somebody can help, I've spent like the last two days straight at the genius bar without success. When I boot up I see my profile and the guest, it boots as normal (not the delayed boot with black screen others have mentioned), but then I log in, see my desktop, icons, and then the screen goes black.
If I let it sleep for a few hours, when I wake it up the screen is also black and there's nothing I can do except hold the power till it shuts down.
In both cases I can tell the computer is still on because the backlit keyboard stays lit.
I've tried resetting nvram, smc, deleting the library cache file, doing a is reinstall without wipe, and I only have one partition/HD so it's definitely the default boot disc.
I can boot into safe mode, and occasionally boot up regularly after being in safe mode for a bit.
I had the display replaced due to a physical defect just before this happened, but I also got 10.10.3, which I know has caused graphics glitches for other people.
Hope you guys have some ideas! Thank you!

Mac users often ask whether they should install "anti-virus" (AV) software. The usual answer is "no." That answer is right, but it may give the wrong impression that there is no threat from what are loosely called "viruses." There is a threat, and you need to educate yourself about it.
1. This is a comment on what you should—and should not—do to protect yourself from malicious software ("malware") that circulates on the Internet and gets onto a computer as an unintended consequence of the user's actions.
It does not apply to software, such as keystroke loggers, that may be installed deliberately by an intruder who has hands-on access to the computer, or who has been able to take control of it remotely. That threat is in a different category, and there's no easy way to defend against it. AV software is not intended to, and does not, defend against such attacks.
The comment is long because the issue is complex. The key points are in sections 5, 6, and 10.
OS X now implements three layers of built-in protection specifically against malware, not counting runtime protections such as execute disable, sandboxing, system library randomization, and address space layout randomization that may also guard against other kinds of exploits.
2. All versions of OS X since 10.6.7 have been able to detect known Mac malware in downloaded files, and to block insecure web plugins. This feature is transparent to the user. Internally Apple calls it "XProtect."
The malware recognition database used by XProtect is automatically updated; however, you shouldn't rely on it, because the attackers are always at least a day ahead of the defenders.
The following caveats apply to XProtect:
☞ It can be bypassed by some third-party networking software, such as BitTorrent clients and Java applets.
☞ It only applies to software downloaded from the network. Software installed from a CD or other media is not checked.
As new versions of OS X are released, it's not clear whether Apple will indefinitely continue to maintain the XProtect database of older versions such as 10.6. The security of obsolete system versions may eventually be degraded. Security updates to the code of obsolete systems will stop being released at some point, and that may leave them open to other kinds of attack besides malware.
3. Starting with OS X 10.7.5, there has been a second layer of built-in malware protection, designated "Gatekeeper" by Apple. By default, applications and Installer packages downloaded from the network will only run if they're digitally signed by a developer with a certificate issued by Apple. Software certified in this way hasn't been checked for security by Apple unless it comes from the App Store, but you can be reasonably sure that it hasn't been modified by anyone other than the developer. His identity is known to Apple, so he could be held legally responsible if he distributed malware. That may not mean much if the developer lives in a country with a weak legal system (see below.)
Gatekeeper doesn't depend on a database of known malware. It has, however, the same limitations as XProtect, and in addition the following:
☞ It can easily be disabled or overridden by the user.
☞ A malware attacker could get control of a code-signing certificate under false pretenses, or could simply ignore the consequences of distributing codesigned malware.
☞ An App Store developer could find a way to bypass Apple's oversight, or the oversight could fail due to human error.
Apple has taken far too long to revoke the codesigning certificates of some known abusers, thereby diluting the value of Gatekeeper and the Developer ID program. Those lapses don't involve App Store products, however.
For the reasons given, App Store products, and—to a lesser extent—other applications recognized by Gatekeeper as signed, are safer than others, but they can't be considered absolutely safe. "Sandboxed" applications may prompt for access to private data, such as your contacts, or for access to the network. Think before granting that access. Sandbox security is based on user input. Never click through any request for authorization without thinking.
4. Starting with OS X 10.8.3, a third layer of protection has been added: a "Malware Removal Tool" (MRT). MRT runs automatically in the background when you update the OS. It checks for, and removes, malware that may have evaded the other protections via a Java exploit (see below.) MRT also runs when you install or update the Apple-supplied Java runtime (but not the Oracle runtime.) Like XProtect, MRT is effective against known threats, but not against unknown ones. It notifies you if it finds malware, but otherwise there's no user interface to MRT.
5. The built-in security features of OS X reduce the risk of malware attack, but they are not, and never will be, complete protection. Malware is a problem of human behavior, not machine behavior, and no technological fix alone is going to solve it. Trusting software to protect you will only make you more vulnerable.
The best defense is always going to be your own intelligence. With the possible exception of Java exploits, all known malware circulating on the Internet that affects a fully-updated installation of OS X 10.6 or later takes the form of so-called "Trojan horses," which can only have an effect if the victim is duped into running them. The threat therefore amounts to a battle of wits between you and Internet criminals. If you're better informed than they think you are, you'll win. That means, in practice, that you always stay within a safe harbor of computing practices. How do you know when you're leaving the safe harbor? Below are some warning signs of danger.
Software from an untrustworthy source
☞ Software with a corporate brand, such as Adobe Flash Player, doesn't come directly from the developer’s website. Do not trust an alert from any website to update Flash, or your browser, or any other software. A genuine alert that Flash is outdated and blocked is shown on this support page. Follow the instructions on the support page in that case. Otherwise, assume that the alert is fake and someone is trying to scam you into installing malware. If you see such alerts on more than one website, ask for instructions.
☞ Software of any kind is distributed via BitTorrent, or Usenet, or on a website that also distributes pirated music or movies.
☞ Rogue websites such as Softonic, Soft32, and CNET Download distribute free applications that have been packaged in a superfluous "installer."
☞ The software is advertised by means of spam or intrusive web ads. Any ad, on any site, that includes a direct link to a download should be ignored.
Software that is plainly illegal or does something illegal
☞ High-priced commercial software such as Photoshop is "cracked" or "free."
☞ An application helps you to infringe copyright, for instance by circumventing the copy protection on commercial software, or saving streamed media for reuse without permission. All "YouTube downloaders" are in this category, though not all are necessarily malicious.
Conditional or unsolicited offers from strangers
☞ A telephone caller or a web page tells you that you have a “virus” and offers to help you remove it. (Some reputable websites did legitimately warn visitors who were infected with the "DNSChanger" malware. That exception to this rule no longer applies.)
☞ A web site offers free content such as video or music, but to use it you must install a “codec,” “plug-in,” "player," "downloader," "extractor," or “certificate” that comes from that same site, or an unknown one.
☞ You win a prize in a contest you never entered.
☞ Someone on a message board such as this one is eager to help you, but only if you download an application of his choosing.
☞ A "FREE WI-FI !!!" network advertises itself in a public place such as an airport, but is not provided by the management.
☞ Anything online that you would expect to pay for is "free."
Unexpected events
☞ A file is downloaded automatically when you visit a web page, with no other action on your part. Delete any such file without opening it.
☞ You open what you think is a document and get an alert that it's "an application downloaded from the Internet." Click Cancel and delete the file. Even if you don't get the alert, you should still delete any file that isn't what you expected it to be.
☞ An application does something you don't expect, such as asking for permission to access your contacts, your location, or the Internet for no obvious reason.
☞ Software is attached to email that you didn't request, even if it comes (or seems to come) from someone you trust.
I don't say that leaving the safe harbor just once will necessarily result in disaster, but making a habit of it will weaken your defenses against malware attack. Any of the above scenarios should, at the very least, make you uncomfortable.
6. Java on the Web (not to be confused with JavaScript, to which it's not related, despite the similarity of the names) is a weak point in the security of any system. Java is, among other things, a platform for running complex applications in a web page, on the client. That was always a bad idea, and Java's developers have proven themselves incapable of implementing it without also creating a portal for malware to enter. Past Java exploits are the closest thing there has ever been to a Windows-style virus affecting OS X. Merely loading a page with malicious Java content could be harmful.
Fortunately, client-side Java on the Web is obsolete and mostly extinct. Only a few outmoded sites still use it. Try to hasten the process of extinction by avoiding those sites, if you have a choice. Forget about playing games or other non-essential uses of Java.
Java is not included in OS X 10.7 and later. Discrete Java installers are distributed by Apple and by Oracle (the developer of Java.) Don't use either one unless you need it. Most people don't. If Java is installed, disable it—not JavaScript—in your browsers.
Regardless of version, experience has shown that Java on the Web can't be trusted. If you must use a Java applet for a task on a specific site, enable Java only for that site in Safari. Never enable Java for a public website that carries third-party advertising. Use it only on well-known, login-protected, secure websites without ads. In Safari 6 or later, you'll see a padlock icon in the address bar when visiting a secure site.
Stay within the safe harbor, and you’ll be as safe from malware as you can practically be. The rest of this comment concerns what you should not do to protect yourself.
7. Never install any commercial AV or "Internet security" products for the Mac, as they are all worse than useless. If you need to be able to detect Windows malware in your files, use one of the free security apps in the Mac App Store—nothing else.
Why shouldn't you use commercial AV products?
☞ To recognize malware, the software depends on a database of known threats, which is always at least a day out of date. This technique is a proven failure, as a major AV software vendor has admitted. Most attacks are "zero-day"—that is, previously unknown. Recognition-based AV does not defend against such attacks, and the enterprise IT industry is coming to the realization that traditional AV software is worthless.
☞ Its design is predicated on the nonexistent threat that malware may be injected at any time, anywhere in the file system. Malware is downloaded from the network; it doesn't materialize from nowhere. In order to meet that nonexistent threat, commercial AV software modifies or duplicates low-level functions of the operating system, which is a waste of resources and a common cause of instability, bugs, and poor performance.
☞ By modifying the operating system, the software may also create weaknesses that could be exploited by malware attackers.
☞ Most importantly, a false sense of security is dangerous.
8. An AV product from the App Store, such as "ClamXav," has the same drawback as the commercial suites of being always out of date, but it does not inject low-level code into the operating system. That doesn't mean it's entirely harmless. It may report email messages that have "phishing" links in the body, or Windows malware in attachments, as infected files, and offer to delete or move them. Doing so will corrupt the Mail database. The messages should be deleted from within the Mail application.
An AV app is not needed, and cannot be relied upon, for protection against OS X malware. It's useful, if at all, only for detecting Windows malware, and even for that use it's not really effective, because new Windows malware is emerging much faster than OS X malware.
Windows malware can't harm you directly (unless, of course, you use Windows.) Just don't pass it on to anyone else. A malicious attachment in email is usually easy to recognize by the name alone. An actual example:
London Terror Moovie.avi [124 spaces] Checked By Norton Antivirus.exe
You don't need software to tell you that's a Windows trojan. Software may be able to tell you which trojan it is, but who cares? In practice, there's no reason to use recognition software unless an organizational policy requires it. Windows malware is so widespread that you should assume it's in every email attachment until proven otherwise. Nevertheless, ClamXav or a similar product from the App Store may serve a purpose if it satisfies an ill-informed network administrator who says you must run some kind of AV application. It's free and it won't handicap the system.
The ClamXav developer won't try to "upsell" you to a paid version of the product. Other developers may do that. Don't be upsold. For one thing, you should not pay to protect Windows users from the consequences of their choice of computing platform. For another, a paid upgrade from a free app will probably have all the disadvantages mentioned in section 7.
9. It seems to be a common belief that the built-in Application Firewall acts as a barrier to infection, or prevents malware from functioning. It does neither. It blocks inbound connections to certain network services you're running, such as file sharing. It's disabled by default and you should leave it that way if you're behind a router on a private home or office network. Activate it only when you're on an untrusted network, for instance a public Wi-Fi hotspot, where you don't want to provide services. Disable any services you don't use in the Sharing preference pane. All are disabled by default.
10. As a Mac user, you don't have to live in fear that your computer may be infected every time you install software, read email, or visit a web page. But neither can you assume that you will always be safe from exploitation, no matter what you do. Navigating the Internet is like walking the streets of a big city. It can be as safe or as dangerous as you choose to make it. The greatest harm done by security software is precisely its selling point: it makes people feel safe. They may then feel safe enough to take risks from which the software doesn't protect them. Nothing can lessen the need for safe computing practices.

Black screen after login and slow NAL

Hi,
We have a problem which we think is ZFD related. Immediately after the
login there is a black screen presented and the pc appears to be doing
nothing. After 30 seconds or up to 3 minutes the desktop appears. At
that moment the NAL starts and again we have to wait for 1 to 5 minutes
for the NAL to appear.
Here are some figures:
3300 users
700 applications
7 cluster servers
NetWare 6.5 sp5 + nw65sp5upd1 + iscsi65sp5a
GroupWise 7.0 sp1
ZenWorks for Desktops 7.0 sp1
(and iPrint, BorderManager 3.8, NetMail 3.5.2, Identity Manager 3.01)
Windows XP sp2 fully patched
Office 2003
Novell Client 4.91 sp2 + pkc
We are using DLU. The difference in the delay times is because of
hardware. On older hardware you'll have to wait longer. That makes sense
but keep in mind the oldest hardware is still a P4 1,6 with 256Mb RAM.
But 1 and a half minute extra startup time for a brand new pc is still
quite a lot.
We have had an expert at our site. The obvious like SLP, DNS was not our
problem. He took some traces and again no problems found. There are some
posts with ZFD 6.5 which mentions this black screen but no solution is
provided.
Most of our applications are associated with the users' container.
Anyone please?
Joost Sannen

Hi Craig,
We'll follow up your advice and let you know. Currently I'm at home with
the flew so you have to wait for it.
Thanks,
Joost Sannen
craig wilson schreef:
> The "startup" times you are seeing are not the norm and vastly different
> from what most people see.
>
> You need to take steps to see what is causing your delays.
>
> The first thing is to determine where the delay is occurring.
>
> Login as a user that belongs to ZERO policies. No DLU. No Group
> Policies on a PC that has NO workstation Policies. The Windows Account
> should already exist on the PC.
>
> This is your base-line.
>
> Then Add in DLU but no other policy. (Test Volatile vs Non-Volatile)
> W/O DLU, test using Windows Group Policies that you have assigned.
>
> For DLU, you need to minimize the Profile size.
> New users on a PC for me usually add a few seconds but not a lot.
>
> The difference here is less than 1 second in a Windows vs ZEN
> Environment for the creation of the account. The delay is in creating
> the account which is handled by Windows in the same manner in both cases.
>
> For your GPOs, make sure you are following best practice of only setting
> the required settings. Do not set a value that is equal to the default
> value. Each setting you change increases GPO policy processing time.
> Again, Windows not ZEN processes this and the delay would be the
> identical in both cases.
>
> -------------------------------------------------------------------
> NAL Startup Time - This can be a load of things.
>
> Turn of "Reading of Groups" as a test. This is often a big cause of
> delay. You need to test how much of a delay this is causing.
>
> Do you have a large number of apps assigned to the user (by any fashion)
> with lots system requirements. Realize that if a user has 700 apps
> assigned to him but they only appear if they meet a complex set of rules
> this will cause delays.
>
> Do you have a large number of "Force Run" apps running upon the Start of
> NAL? This can cause huge delaays.
>
> Again specific tests to help.
> ------------------------------------------------------------------------
> After logon, are you attached to any replica servers located across a
> slow WAN link? We may need to try and make sure we delay attaching to
> these servers during initialization.
>
>
>
>
>
>
>
>

Black screen upon waking Mac

Mac Mini 2011 with 2x4GB RAM, 2.3Ghz i5, 500GB 5400RPM HDD
So I need some help regarding my Mac and it's driving me mad! Its a bit tempermental and it isnt always the same occurance each time, but basically symptons are (somtimes it occurs, sometimes not with each one!):
Turning on It will freeze on white screen (no logo)
upon waking up from sleep it will display black screen with mouse and notifications. no login UI or wallpaper. Can SOMETIMES login if i just type password (as if login screen is still there). mouse dissapears once typing begins
Sometimes when the previous event occurs (^) and i put computer to sleep it will then do the opposite and display just the wallpaper with no input from mouse, keyboard
I have tried removing all devices (webcam, USB mouse etc) and turning on computer but as its tempermental
I have also reinstalled a new OS X over the top from internet recovery
Also reformated HDD and restored OS X.
Also reset SMC and NVRAM.
Also checked in
/private/var/run/StartupItems   -doesnt exsist
/Library/StartupItems - nothing in this folder
/System/Library/StartupItems - nothing either
/System/Library/LaunchDaemons - Loads of files in this folder
/Library/LaunchDaemons - only a few files
Also only 3rd party pref are Java and Flash.
Internet Plug-ins:
          FlashPlayer-10.6: Version: 12.0.0.38 - SDK 10.6 3rd-Party support link
          QuickTime Plugin: Version: 7.7.3
          DivX Web Player: Version: 3.0.1.5 - SDK 10.5 3rd-Party support link
          Flash Player: Version: 12.0.0.38 - SDK 10.6 3rd-Party support link
          OVSHelper: Version: 1.1 3rd-Party support link
          Default Browser: Version: 537 - SDK 10.9
          SharePointBrowserPlugin: Version: 14.3.4 - SDK 10.6 3rd-Party support link
          Unity Web Player: Version: UnityPlayer version 4.1.5f1 3rd-Party support link
          Silverlight: Version: 5.1.10411.0 - SDK 10.6 3rd-Party support link
          JavaAppletPlugin: Version: Java 7 Update 51 3rd-Party support link
3rd Party Preference Panes:
          Flash Player 3rd-Party support link
          Java 3rd-Party support link
Also run the AHT extended test, no issues detected.
Also set "sudo pmset autopoweroff 0" and "sudo pmset standby 0" in Kernal.
Also repaired disk permissions, it only repaired the printer stuff.
After i gave this in kernal, i then reset SMC again to check.
Checked console and noticed a 40 second gap before this error:   "05/02/2014 07:03:00.266 configd[55]: inet_set_autoaddr(en1, 1) failed, Resource busy"
turned off my WiFi and issues still persisted.
This had previously been on forums last week in Mac Mini section with the help of 'BDAqua' however im out of options and need some more help. If anyone could be helpful enough to give some suggestions on why my screen is black upon waking up (exc. notifications. they appear) and most time i need to hard reboot (sometimes i can type in password and it unlocks).
I can not afford to start fresh, i have a 110GB iTunes Library with 210 iOS apps and photos too important to me to be forgotten.
PLEASE HELP ME

Try setting up another admin user account to see if the same problem continues. If Back-to-My Mac is selected in System Preferences, the Guest account will not work. The intent is to see if it is specific to one account or a system wide problem. This account can be deleted later.
Isolating an issue by using another user account
If the problem is still there, try booting into the Safe Mode using your normal account. Disconnect all peripherals except those needed for the test. Shut down the computer and then power it back up after waiting 10 seconds. Immediately after hearing the startup chime, hold down the shift key and continue to hold it until the gray Apple icon and a progress bar appear. The boot up is significantly slower than normal. This will reset some caches, forces a directory check, and disables all startup and login items, among other things. When you reboot normally, the initial reboot may be slower than normal. If the system operates normally, there may be 3rd party applications which are causing a problem. Try deleting/disabling the third party applications after a restart by using the application un-installer. For each disable/delete, you will need to restart if you don't do them all at once.
Safe Mode
Safe Mode - About

Error 0xe00002ca black screen after login, Mountain Lion on Macbook pro 13 inch early 2011 SSD 256 GB

After entering my pw at the login screen, I get a black screen
This started after battery got fully drained accidentally.
It has happened in the past after battery gets fully drained accidentally, and I have to reboot several times until it boots properly.
This time I tried rebooting several times but it never booted properly
Tried booting into Safe Mode, by restart Mac while holding down theShift key past the chime, until I saw the Apple logo and spinning gear. I did NOT see the spinning gear change into a solid progress bar. I also did NOT see OS X login window with the words “Safe boot” in bright red.
I Tried booting Mac’s recovery system, by restarting Mac and holding down Command + R during boot. I ran Disk Utility and theVerify Disk option did NOT find any errors. Interestingly only 16 mb was found to be available on the 250 GB disk. Note: I have filevault2 encryption enabled
Please find below the output of verbose mode. (Command-V)
com.apple.launchd.     1 com.apple.launchd.
** /dev/rdisk1 (NO WRITE)
** Root file system
   Executing fsck_hfs (version diskdev_cmds-557.3.1~5).
** /dev/rdisk1
        Using cacheBlockSize=32k cacheTotalBlock=98304 cachesSize=3145728k.
** Root file system
   Executing fsck_hfs (version diskdev_cmds-557.3.1~5).
** Checking Journaled HFS Plusvolume
    The volume name is Macintosh HD
** Checking extents overflow file.
** Checking catalog file.
CoreStorageGroup::completeIOrequest - error 0xe00002ca detected for LVG "Macintosh HD"(F2296C53..........), pv 22837757 .........., near LV byte offset = 1823211520
disk1: I/O error.
AppleUSBMultitouchDriver ::checkStatus - received Status Packet, Payload 2: device was reinitialized
** The volume Macintosh HD could not be verified completely.
Kext loading now disabled
Kext unloading now disabled
Kext autounloading now disabled
Kernel requests now disabled
com.apple.launchd.     1 com.apple.launchd.
N 20 21:05:51 2014
C
ocontinuing
m.apple.launchd.     1 com.apple.launchctl.system
done
CPU halted
I do have time machine backup.
Do I need to erase the harddisk and restore from time machine, just reinstall OS Mountain lion from internet, get a new hard disk, or do something else.
I don't know if I need to boot this Macbook from an external disk/drive and copy data or fix some minor error
PLEASE HELP !
I would highly appreciate it.

Try booting into the Safe Mode using your normal account. Disconnect all peripherals except those needed for the test. Shut down the computer and then power it back up after waiting 10 seconds. Immediately after hearing the startup chime, hold down the shift key and continue to hold it until the gray Apple icon and a progress bar appear. The boot up is significantly slower than normal. This will reset some caches, forces a directory check, and disables all startup and login items, among other things. When you reboot normally, the initial reboot may be slower than normal. If the system operates normally, there may be 3rd party applications which are causing a problem. Try deleting/disabling the third party applications after a restart by using the application un-installer. For each disable/delete, you will need to restart if you don't do them all at once.
Safe Mode - About
Safe Mode

Black screen after login, Mountain Lion on Macbook pro 13 inch early 2011 SSD 256 GB

After entering my pw at the login screen, I get a black screen
This started after battery got fully drained accidentally.
It has happened in the past after battery gets fully drained accidentally, and I have to reboot several times until it boots properly.
This time I tried rebooting several times but it never booted properly
Tried booting into Safe Mode, by restart Mac while holding down theShift key past the chime, until I saw the Apple logo and spinning gear. I did NOT see the spinning gear change into a solid progress bar. I also did NOT see OS X login window with the words “Safe boot” in bright red.
I Tried booting Mac’s recovery system, by restarting Mac and holding down Command + R during boot. I ran Disk Utility and theVerify Disk option did NOT find any errors. Interestingly only 16 mb was found to be available on the 250 GB disk. Note: I have filevault2 encryption enabled
Please find below the output of verbose mode. (Command-V)
com.apple.launchd.     1 com.apple.launchd.
** /dev/rdisk1 (NO WRITE)
** Root file system
   Executing fsck_hfs (version diskdev_cmds-557.3.1~5).
** /dev/rdisk1
        Using cacheBlockSize=32k cacheTotalBlock=98304 cachesSize=3145728k.
** Root file system
   Executing fsck_hfs (version diskdev_cmds-557.3.1~5).
** Checking Journaled HFS Plusvolume
    The volume name is Macintosh HD
** Checking extents overflow file.
** Checking catalog file.
CoreStorageGroup::completeIOrequest - error 0xe00002ca detected for LVG "Macintosh HD"(F2296C53..........), pv 22837757 .........., near LV byte offset = 1823211520
disk1: I/O error.
AppleUSBMultitouchDriver ::checkStatus - received Status Packet, Payload 2: device was reinitialized
** The volume Macintosh HD could not be verified completely.
Kext loading now disabled
Kext unloading now disabled
Kext autounloading now disabled
Kernel requests now disabled
com.apple.launchd.     1 com.apple.launchd.
N 20 21:05:51 2014
C
ocontinuing
m.apple.launchd.     1 com.apple.launchctl.system
done
CPU halted
I do have time machine backup.
Do I need to erase the harddisk and restore from time machine, just reinstall OS Mountain lion from internet, get a new hard disk, or do something else.
I don't know if I need to boot this Macbook from an external disk/drive and copy data or fix some minor error
PLEASE HELP !
I would highly appreciate it.

Try booting into the Safe Mode using your normal account. Disconnect all peripherals except those needed for the test. Shut down the computer and then power it back up after waiting 10 seconds. Immediately after hearing the startup chime, hold down the shift key and continue to hold it until the gray Apple icon and a progress bar appear. The boot up is significantly slower than normal. This will reset some caches, forces a directory check, and disables all startup and login items, among other things. When you reboot normally, the initial reboot may be slower than normal. If the system operates normally, there may be 3rd party applications which are causing a problem. Try deleting/disabling the third party applications after a restart by using the application un-installer. For each disable/delete, you will need to restart if you don't do them all at once.
Safe Mode - About
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Black screen instead login prompt on GMA 500

Cann't boot latest installation media. Computer is DSA-3020 with POULSBO GMA500 graphics.
I tryied almost everything nomodeset, quiet splash, acpi=off, acpi_osi=Linux, mem=896mb, vga=771....
Interesting is that I see all outputs during kernel boot.
Black screen comes only instead Login prompt.
Last edited by nick81 (2013-02-03 11:47:45)

nick81 wrote:
nick81 wrote:Some new information.. Today I connected it to monitor with 1680x1050 and everything works ok (DVI).
Yesterday problems was on plasma FullHD (DVI to HDMI reduction).
Did you solve this thing ? I have same trouble.
Hey, you made my day... Couldn't stop laughing for some time

Windows 8 .1 black screen after login with cursor

after login in pc i get a black screen and a cursor i can do nothing please help me i updated windows 8 to windows 8.1.

HI , Welcome to the HP Forums! It is a grand place to find answers and information! For you to have the best experience in the HP forum I would like to direct your attention to the HP Forums Guide. Learn How to Post and More How Do I Find My Model Number or Product Number? I grasp that you have a HP 15 notebook and you recently upgraded from Windows 8. to 8.1. Now after you enter your Windows password you get a black screen with a cursor. Here is a link to HP PCs - Black or blank screen with blinking cursor after entering Windows password. To say thanks for responding please click the thumbs up icon below. If this solved your difficulty please tell people by selecting solution provided. Best of Luck!

Black Screen on Login - Windows 7 Bootcamp Early 2011 MBP 13'

I was running Windows 7 Ultimate 64 bit on early 2011 Macbook Pro 13'. All was fine, until last night.
Last night I was able to boot the Windows 7, but after a glimpse on the login screen, I had a black screen. The machine was operational but the screen was not. To further investigate the problem, I booted on safe mode, which then I was able to login succesfully. I reinstalled all drivers back to original bootcamp drivers but it did not solve the problem.
I know that there are many problems regarding the black screen, and about the display adapter, but none of them applies to an early 2011 model. Does anyone had the same problem? Can you please help?

I think I found the right solution yesterday. I booted Windows 7 on safe mode, I started msconfig.exe and in the startup programs tab and on services tab, I disabled everything that looked like related with the Intel display adapter.
Now it boots perfectly.
I hope it works for you as well.

Black screen after login on Satellite L350-20Q (normal mode)

My Satellite L350-20Q run Vista basic.
After login that is normal I go to the turning arrow then to a permanent black screen when I start in normal mode.
In safe mode I have a normal behaviour and I can work. Spybot report no malware present. But my Avast antivirus does not seems to work in safe mode.
Do you have any idea of this problem ?
A fellow has advised me to update my graphic drivers which is presently Intel Corporation 12/06/2008 version 7.15.10.I502 for Mobile Intel 4 series express chipset family. What is the URL and the filename to download the most recent driver ?
Message was edited by: nigelle normal mode added in title.

1) I have already done a roll back but without success
2) total reinitialisation and updates is a long and tedious process I wish to avoid if possible.
Downloading and installing a new driver is fast so I prefer to try this before even if the probability of improvement is low. Where can I find the driver for graphic ?
3) I bought this lap top in June and Win7 was released in September or October.
All manufacturers had promised a free update to Win7.
But after the release of Win7 my laptop was not in the eligible list may be only because it ran on Vista basic and they were not Win7 basic and Toshiba did not want to pay for the upgrade...
Not very honest !
I dared not to buy a Win7 license because I think that Win on a laptop is a slightly modified version.

Black screen after login while on battery with graphics switching enabled

Getting a black screen after entering my password while logging into my account while on battery with graphics switching enabled. Everything is up and running, I just can't see it.
I can log into the guest account on battery
I can log into my account while plugged into power
I can log into my account on battery if graphics switching is disabled
I believe something that is starting up in my account is causing the system to switch from integrated to discrete graphics on login, and that switch isn't working correctly on battery power.
As a work around for now, I can run with graphics switching disabled, but I'd like to solve this so I get longer battery life.
MacBook Pro Retina 15"
Mountain Lion
All updates applied

I had the same issue and managed to reslove it.
Shut down your machine.
Power it back on while holding the 'shift' key (left or right, doesn't matter)
You will see a greay progress bar go across the screen while you boot in to 'safe boot'
Once booted, login, and go to Energy Saver and turn on 'Automatic Graphics Switching'.
Reboot back in to normal mode, and you should be able to log back in and see again.
I did this without being plugged into AC power.
Hope it helps!
Cheers!

Black screen after login. Windows 8 is not opening

After login, I only have a black screen with a cursor.
Windows 8 does not open. Cannot get to "System Restore" or Control Panel.
HP hardware self- diagnostic tests were negative & didn't help.
Please offer possible solutions for recovery.

Then that does not pertain to your problem.
On Kaspersky Rescue Disk on another computer download and burn to USB stick or DVD to run a full scan on your computer.
http://support.kaspersky.com/4162
Are you able to boot into Safe Mode to perform a System Restore?
Please mark my post as SOLVED if it has resolved your problem. It helps others with similar situations.

KDM - Black screen after login

heya,
I just did an update of my Arch Linux system (Arch64) last night (2009-12-19), and now it appears that KDE won't start. I have KDE-mod installed (KDE 4.4 Beta 1), and the hardware is a Lenovo X200 Tablet PC.
On bootup, it will go to the KDM screen fine. However, if you attempt to login, the screen goes black, and caps-lock doesn't seem to work. Also, going to a console login also seems to go to a black screen as well, caps lock also non-functional. I tried moving my .kde4mod config folder away, still the same thing.
From memory, I think there were some updates to hal (?) or xorg-input (?), but I can't be certain. There weren't any updates to any KDE-mod packages, and there haven't been any changes/updates to that since the KDE 4.4 Beta 1 release around two weeks ago.
I've put up my Xorg.log and kdm.log here:
http://dpaste.com/135957/
http://dpaste.com/135958/
I did see mentions of seg-faults in the logfiles, I'm guessing that's the issue?
I saw another thread talking about segfaults in KDE Plasma, however, I assume this is in plasma, and this guy/girl is actually able to login:
http://bbs.archlinux.org/viewtopic.php?id=87134
I also saw another thread about a bad upgrade causing problems with GDM here:
http://bbs.archlinux.org/viewtopic.php?id=87122
http://bbs.archlinux.org/viewtopic.php?id=87123
and that seems to be fixed with a console-kit upgrade. However, that talks about missing buttons in GDM, and nobody there mentioned issues with KDE.
Any advice?
Thanks,
Victor
Last edited by victorhooi (2009-12-20 22:45:00)

heya,
Gosh, should have waited just a bit more. The consolekit update did come through on the mirror I used, however, I also needed to do a reboot .
So now I'm back in KDE. I did notice that a reboot from KDE seems to take quite a while (a couple of minutes, sitting at a blank black screen). Also, a logout seems to cause KDE to hang (black screen, but sits there for a long time...I eventually just had to power-cycle it). Weird.
Cheers,
Victor

WINDOWS 8 BLACK SCREEN AFTER LOGIN PROBLEM

Please help me i have a problem with my computer it goes black screen after i login
my desktop is hp pavilion a5055d my os is windows 8 i dont know what the problem
i have a ati radeon xpress 1100 for videocard ..
I tried to restart many times.

Hi,
Did this issue occur before?
Try to logon with Safe Mode to see if the same issue occurs.
Furthermore, you can try to update BIOS for your machine?
You can refer these article to update BIOS if your machine cannot boot:
http://www.ehow.com/how_7356859_update-bios-windows-won_t-boot.html
http://www.wikihow.com/Fix-a-PC-Which-Won't-Boot
Hope that helps.
Leo Huang
TechNet Community Support

Black Screen upon login

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