While using my imac the display just cuts off whats causing this

while using my imac the display just cuts off but the machine is still on and I have to push the power button a couple of times fir it to cut back on whats causing this?

Hi keithfromcapitol heights,
It sounds as if your iMac is going to sleep unexpectedly. Is this during use or after it has been left alone for a while (which can be normal if it is set that way?) If during use, I would suggest that you reset your System Management Controller, using the steps in this article -
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
Thanks for using Apple Support Communities.
Best,
Brett L

Similar Messages

Recently while using my iMac the display will just cut off but the machine is still running and I have to press the power button to get the display to cut back on. What is causing this?

Recently while using my iMac the display will just cut off but the machine is still running and I have to press the power button to get the display to cut back on. What is causing this?

Look in System Preferences/Energy Saver.

MacBook Pro 15" i7 the Display just turns off suddenly

My MackBook Pro 15" i7 4GB RAM , 512 Video Memmory
Some time the Display just turns off suddenly....   and I cannot get it back on display again
   I have to restart to turn the screen back on .   After on then popup error report msg
this is Details........
Interval Since Last Panic Report: 25906 sec
Panics Since Last Report:          2
Anonymous UUID:                    E1FB7524-2CEC-4A16-9524-CA53851EB8BC
Sun Mar 31 00:28:21 2013
panic(cpu 2 caller 0x9d4c9b): NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xc0000000 0x7f2cf000 0x0a5480a2, D0, P2/4
Backtrace (CPU 2), Frame : Return Address (4 potential args on stack)
0x5519a188 : 0x21b837 (0x5dd7fc 0x5519a1bc 0x223ce1 0x0)
0x5519a1d8 : 0x9d4c9b (0xbea28c 0xc5a800 0xbf8e60 0x0)
0x5519a278 : 0xaef608 (0x8db1c04 0x9382004 0x100 0xcb42b6)
0x5519a2c8 : 0xae6601 (0x9382004 0x100 0x5519a2f8 0x9c4778)
0x5519a2f8 : 0x16c89a6 (0x9382004 0x100 0x438004ee 0x5519a308)
0x5519a438 : 0xb0e2b5 (0x9382004 0x9565004 0x0 0x0)
0x5519a478 : 0x9dde7c (0x9382004 0x9565004 0x0 0x0)
0x5519a518 : 0x9da55b (0x0 0x9 0x0 0x0)
0x5519a6c8 : 0x9dc58f (0x0 0x600d600d 0x702b 0x5519a6f8)
0x5519a798 : 0xc9feae (0xc1d00048 0xbfef0033 0xbfef0034 0x857c)
0x5519a808 : 0xcaf734 (0x9c3a600 0x9d62580 0x8 0x3)
0x5519a828 : 0xcd4322 (0x9d62580 0xb 0x5519a848 0x3648)
0x5519a858 : 0xcd4b3d (0x9675000 0x0 0x5519a87c 0x0)
0x5519a888 : 0xcb4d79 (0x9675000 0x7d297080 0x0 0x70)
0x5519a8d8 : 0xc76d0c (0x4648d000 0x0 0x0 0x3)
0x5519a948 : 0xc7640f (0x4648d000 0x0 0x2 0x3)
0x5519a978 : 0xc6c05f (0x4648d000 0x0 0x2 0x4640c000)
0x5519aab8 : 0xca55d8 (0x4640c000 0x1 0x5519abcc 0x5519abc8)
0x5519ab68 : 0xc67fe1 (0x4640c000 0x1 0x5519abcc 0x5519abc8)
0x5519abe8 : 0x56da06 (0x4640c000 0x0 0x5519ae3c 0x5519ac74)
0x5519ac38 : 0x56e2a5 (0xcf6720 0x4640c000 0x9d27888 0x1)
0x5519ac88 : 0x56eb59 (0x4640c000 0x10 0x5519acd0 0x0)
0x5519ada8 : 0x286638 (0x4640c000 0x10 0x9d27888 0x1)
0x5519be58 : 0x21dbe5 (0x9d27860 0xa55a5a0 0x1fd7e8 0x5d43)
0x5519be98 : 0x210a86 (0x9d27800 0x0 0x9201b20 0x968d380)
0x5519bef8 : 0x216f84 (0x9d27800 0x0 0x0 0x0)
0x5519bf78 : 0x295c57 (0x900d7a8 0x0 0x0 0x0)
0x5519bfc8 : 0x2a256d (0x900d7a4 0x7fff 0x10 0x900d7a4)
      Kernel Extensions in backtrace (with dependencies):
         com.apple.GeForce(6.4.0)@0xc5c000->0xd12fff
            dependency: com.apple.NVDAResman(6.4.0)@0x96e000
            dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x961000
            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x928000
            dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x93f000
         com.apple.nvidia.nv50hal(6.4.0)@0x1592000->0x19a6fff
            dependency: com.apple.NVDAResman(6.4.0)@0x96e000
         com.apple.NVDAResman(6.4.0)@0x96e000->0xc5bfff
            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x928000
            dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x961000
            dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x93f000
BSD process name corresponding to current thread: WindowServer
Mac OS version:
10K549
Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun 7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386
System model name: MacBookPro6,2 (Mac-F22586C8)
System uptime in nanoseconds: 1774311688225
unloaded kexts:
com.apple.driver.AppleUSBUHCI          4.2.0 (addr 0x142d000, size 0x65536) - last unloaded 124931706507
loaded kexts:
com.apple.driver.AppleHWSensor          1.9.3d0 - last loaded 23229544010
com.apple.filesystems.autofs          2.1.0
com.apple.driver.AppleMikeyHIDDriver          1.2.0
com.apple.driver.AGPM          100.12.31
com.apple.driver.AppleMikeyDriver          2.0.5f14
com.apple.driver.AppleHDA          2.0.5f14
com.apple.driver.AudioAUUC          1.57
com.apple.driver.SMCMotionSensor          3.0.1d2
com.apple.driver.AppleUpstreamUserClient          3.5.7
com.apple.driver.AppleMCCSControl          1.0.20
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AudioIPCDriver          1.1.6
com.apple.GeForce          6.4.0
com.apple.driver.AppleLPC          1.5.1
com.apple.driver.AppleGraphicsControl          2.10.6
com.apple.kext.AppleSMCLMU          1.5.2d10
com.apple.driver.AppleIntelHDGraphics          6.4.0
com.apple.driver.ACPI_SMC_PlatformPlugin          4.7.0a1
com.apple.driver.AppleIntelHDGraphicsFB          6.4.0
com.apple.driver.AppleUSBTCButtons          201.6
com.apple.driver.AppleUSBCardReader          2.6.1
com.apple.driver.AppleIRController          303.8
com.apple.driver.AppleUSBTCKeyboard          201.6
com.apple.BootCache          31.1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.iokit.SCSITaskUserClient          2.6.8
com.apple.iokit.IOAHCIBlockStorage          1.6.4
com.apple.driver.AirPortBrcm43224          428.42.4
com.apple.driver.AppleUSBHub          4.2.4
com.apple.driver.AppleFWOHCI          4.7.3
com.apple.driver.AppleEFINVRAM          1.4.0
com.apple.driver.AppleSmartBatteryManager          160.0.0
com.apple.driver.AppleAHCIPort          2.1.7
com.apple.iokit.AppleBCM5701Ethernet          3.0.5b8
com.apple.driver.AppleUSBEHCI          4.2.4
com.apple.driver.AppleACPIButtons          1.3.6
com.apple.driver.AppleRTC          1.3.1
com.apple.driver.AppleHPET          1.5
com.apple.driver.AppleSMBIOS          1.7
com.apple.driver.AppleACPIEC          1.3.6
com.apple.driver.AppleAPIC          1.4
com.apple.driver.AppleIntelCPUPowerManagementClient          142.6.0
com.apple.security.sandbox          1
com.apple.security.quarantine          0
com.apple.nke.applicationfirewall          2.1.14
com.apple.driver.AppleIntelCPUPowerManagement          142.6.0
com.apple.driver.AppleProfileReadCounterAction          17
com.apple.driver.DspFuncLib          2.0.5f14
com.apple.driver.AppleProfileTimestampAction          10
com.apple.driver.AppleProfileThreadInfoAction          14
com.apple.driver.AppleProfileRegisterStateAction          10
com.apple.driver.AppleProfileKEventAction          10
com.apple.driver.AppleProfileCallstackAction          20
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.iokit.IOSurface          74.2
com.apple.iokit.IOBluetoothSerialManager          2.4.5f3
com.apple.iokit.IOSerialFamily          10.0.3
com.apple.iokit.IOFireWireIP          2.0.3
com.apple.iokit.IOAudioFamily          1.8.3fc2
com.apple.kext.OSvKernDSPLib          1.3
com.apple.driver.AppleHDAController          2.0.5f14
com.apple.iokit.IOHDAFamily          2.0.5f14
com.apple.iokit.AppleProfileFamily          41
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.driver.AppleBacklightExpert          1.0.1
com.apple.nvidia.nv50hal          6.4.0
com.apple.NVDAResman          6.4.0
com.apple.driver.AppleSMC          3.1.0d5
com.apple.driver.IOPlatformPluginFamily          4.7.0a1
com.apple.iokit.IONDRVSupport          2.2.1
com.apple.iokit.IOGraphicsFamily          2.2.1
com.apple.driver.BroadcomUSBBluetoothHCIController          2.4.5f3
com.apple.driver.AppleUSBBluetoothHCIController          2.4.5f3
com.apple.iokit.IOBluetoothFamily          2.4.5f3
com.apple.iokit.IOSCSIBlockCommandsDevice          2.6.8
com.apple.iokit.IOUSBMassStorageClass          2.6.7
com.apple.driver.AppleUSBMultitouch          207.7
com.apple.iokit.IOUSBHIDDriver          4.2.0
com.apple.driver.AppleUSBMergeNub          4.2.4
com.apple.driver.AppleUSBComposite          3.9.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice          2.6.8
com.apple.iokit.IOBDStorageFamily          1.6
com.apple.iokit.IODVDStorageFamily          1.6
com.apple.iokit.IOCDStorageFamily          1.6.1
com.apple.driver.XsanFilter          402.1
com.apple.iokit.IOAHCISerialATAPI          1.2.6
com.apple.iokit.IOSCSIArchitectureModelFamily          2.6.8
com.apple.iokit.IO80211Family          320.1
com.apple.iokit.IOUSBUserClient          4.2.4
com.apple.iokit.IOFireWireFamily          4.2.6
com.apple.iokit.IOAHCIFamily          2.0.6
com.apple.iokit.IONetworkingFamily          1.10
com.apple.iokit.IOUSBFamily          4.2.4
com.apple.driver.AppleEFIRuntime          1.4.0
com.apple.iokit.IOHIDFamily          1.6.6
com.apple.iokit.IOSMBusFamily          1.1
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          6
com.apple.driver.DiskImages          289.1
com.apple.iokit.IOStorageFamily          1.6.3
com.apple.driver.AppleACPIPlatform          1.3.6
com.apple.iokit.IOPCIFamily          2.6.5
com.apple.iokit.IOACPIFamily          1.3.0
Model: MacBookPro6,2, BootROM MBP61.0057.B00, 2 processors, Intel Core i7, 2.66 GHz, 4 GB, SMC 1.58f15
Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 512 MB
Graphics: Intel HD Graphics, Intel HD Graphics, Built-In, 288 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.10.131.42.4)
Bluetooth: Version 2.4.5f3, 2 service, 19 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: Hitachi HTS545050B9SA02, 465.76 GB
Serial ATA Device: MATSHITADVD-R   UJ-898
USB Device: Hub, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2
USB Device: Internal Memory Card Reader, 0x05ac (Apple Inc.), 0x8403, 0xfa130000 / 5
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x0236, 0xfa120000 / 4
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 3
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8218, 0xfa113000 / 7
USB Device: Hub, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8507, 0xfd110000 / 4
USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0xfd120000 / 3
pls help me............

Welcome to the Apple Support Communities
You have a Mid 2010 15-inch MacBook Pro, and your log is showing a NVIDIA graphic card problem.
Apple has determined that these computers have got a defective NVIDIA graphic card, that may cause unexpected restarts, black screens, kernel panics... See > http://support.apple.com/kb/TS4088
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In my email auto fill it lists addresses I haven't used in 2 years as "recent others". What causes this, the contact information for these people was deleted some time ago.

In my email auto fill it lists addresses I haven't used in 2 years as "recent others". What causes this, the contact information for these people was deleted some time ago.

Mail, Window Menu, Previous Recipients.
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My MBP was working fine, but then the display just shut off... What should I try?

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Try resetting the SMC.
Barry

I connected my Macbook Pro 2012 to a 1080p monitor, and the display is cut off at the top?

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I have just connected my Macbook Pro to a 1080p 23' LG monitor using a Displayport to VGI adapter. However, when I use the 1080p setting, it cuts off a little bit of the top bar. When I switch to lower resolutions, it works just fine. I would rather use it at 1080p, though. Is there a way to fix this?
Thanks,
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You may need a display adaptor but can otherwise use a non-Apple monitor.
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Reset PRAM. http://support.apple.com/kb/PH4405
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Reset PRAM.
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http://support.apple.com/kb/HT3964
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Hi Caleb,
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WinRM cannot process the request. The following error occured while using Kerberos authentication: The network path was not found.

I have two forests with a transitive on-way trust between them: PROD -> TEST (test trusts PROD). I had previously had kerberos authentication working with winrm from PROD to machines in TEST. I have verified the trust is healthy, I also verified users
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I've enabled kerberos logging but only see the expected errors such as it couldn't find a PROD SPN for the machine, which it shouldn't from what I understand, it should go to the TEST domain and find the SPN from there.
I'm really out of next steps before I call PSS and hope someone here has run into this and could provide me some next steps.
PowerShell Error:
Connecting to remote server failed with the following error message : WinRM cannot process the request. The following error occured while using Kerberos authentication: The network path was not found.
Possible causes are:
-The user name or password specified are invalid.
-Kerberos is used when no authentication method and no user name are specified.
-Kerberos accepts domain user names, but not local user names.
-The Service Principal Name (SPN) for the remote computer name and port does not exist.
-The client and remote computers are in different domains and there is no trust between the two domains.
After checking for the above issues, try the following:
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Note that computers in the TrustedHosts list might not be authenticated.
-For more information about WinRM configuration, run the following command: winrm help config. For more information, see the about_Remote_Troubleshooting Help topic.
+ CategoryInfo : OpenError: (:) [], PSRemotingTransportException
+ FullyQualifiedErrorId : PSSessionStateBroken
winrs Error:
Winrs error:
WinRM cannot process the request. The following error occured while using Kerberos authentication: The network path was not found.
Possible causes are:
-The user name or password specified are invalid.
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-The Service Principal Name (SPN) for the remote computer name and port does not exist.
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After checking for the above issues, try the following:
-Check the Event Viewer for events related to authentication.
-Change the authentication method; add the destination computer to the WinRM TrustedHosts configuration setting or use HTTPS transport.
Note that computers in the TrustedHosts list might not be authenticated.
-For more information about WinRM configuration, run the following command: winrm help config.

Hi Adam,
I'm a little unclear about which SPNs you were looking for, in which case could you confirm you were checking that on the computer object belonging to the actual destination host it has the following SPNs registered?
WSMAN/<NetBIOS name>
WSMAN/<FQDN>
If you were actually trying to use WinRM to connect to the remote forest's domain controllers, then what you said makes sense, but I was caught between assuming this was the case or you meant another member server in that remote forest.
Also, from the client trying to connect to this remote server, are you able to telnet to port 5985? (If you've used something other than the default, try that port)
If you can't, then you've got something else like a firewall (be that the Windows firewall on the destination or a hardware firewall somewhere in between) blocking you at the port level, or the listener on the remote box just isn't working as expected. I
just replied to your other winrm post with steps for checking the latter, so I won't repeat myself here.
If you can telnet to it and the SPNs exist, then you might be up against something called selective authentication which has to do with how the trust was defined. You can have a read of
this to learn a bit more about selective trusts and whether or not it's affecting you.
Cheers,
Lain

While using my imac the display just cuts off whats causing this

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