Gray Screen and Random Restarts

Question

In the middle of working recently I&#x27;ve been getting a gray screen and I can do nothing. On one ocassion it restarted and gave a "Your computer restarted because of a problem..."It&#x27;s a 2011 27" i7 iMac running 10.8.2.Here is the most recent log:&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;Interval Since Last Panic Report:  502649 secPanics Since Last Report:          1Anonymous UUID:                   REMOVEDMon Feb  4 22:31:10 2013panic(cpu 2 caller 0xffffff800ea9db1b): "TLB invalidation IPI timeout: " "CPU(s) failed to respond to interrupts, unresponsive CPU bitmap: 0x10, NMIPI acks: orig: 0x0, now: 0x0"@/SourceCache/xnu/xnu-2050.18.24/osfmk/x86_64/pmap.c:2337Backtrace (CPU 2), Frame : Return Address0xffffff80f7b43ad0 : 0xffffff800ea1d626 0xffffff80f7b43b40 : 0xffffff800ea9db1b 0xffffff80f7b43bc0 : 0xffffff800eaa1ad4 0xffffff80f7b43cf0 : 0xffffff800ea61693 0xffffff80f7b43db0 : 0xffffff800ea62abb 0xffffff80f7b43f40 : 0xffffff800eab7fa9 0xffffff80f7b43fb0 : 0xffffff800eace411 BSD process name corresponding to current thread: Google ChromeMac OS version:12C60Kernel version:Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333Kernel slide:     0x000000000e800000Kernel text base: 0xffffff800ea00000System model name: iMac12,2 (Mac-942B59F58194171B)System uptime in nanoseconds: 3080844068507last loaded kext at 39652583931: com.apple.driver.AppleBluetoothHIDKeyboard          165.5 (addr 0xffffff7f9048c000, size 24576)last unloaded kext at 167199352584: com.apple.driver.AppleUSBUHCI          5.2.5 (addr 0xffffff7f8f388000, size 65536)loaded kexts:net.telestream.driver.TelestreamAudio          1.0.3com.rim.driver.BlackBerryUSBDriverInt          0.0.68com.apple.filesystems.cddafs          2.5.1com.apple.driver.AppleBluetoothMultitouch          75.15com.apple.driver.AppleHWSensor          1.9.5d0com.apple.driver.AudioAUUC          1.60com.apple.driver.AGPM          100.12.69com.apple.driver.AppleMikeyHIDDriver          122com.apple.driver.AppleHDA          2.3.1f2com.apple.filesystems.autofs          3.0com.apple.driver.AppleUpstreamUserClient          3.5.10com.apple.kext.AMDFramebuffer          8.0.0com.apple.iokit.IOUserEthernet          1.0.0d1com.apple.iokit.IOBluetoothSerialManager          4.0.9f33com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.0.9f33com.apple.AMDRadeonAccelerator          1.0.0com.apple.driver.AppleMikeyDriver          2.3.1f2com.apple.driver.AppleIntelHD3000Graphics          8.0.0com.apple.Dont_Steal_Mac_OS_X          7.0.0com.apple.driver.AppleSMCLMU          2.0.2d0com.apple.driver.AppleSMCPDRC          1.0.0com.apple.driver.ApplePolicyControl          3.2.11com.apple.driver.AppleIntelSNBGraphicsFB          8.0.0com.apple.driver.AppleLPC          1.6.0com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0com.apple.driver.AppleBacklight          170.2.3com.apple.driver.AppleMCCSControl          1.0.33com.apple.iokit.SCSITaskUserClient          3.5.1com.apple.driver.AppleUSBCardReader          3.1.0com.apple.driver.AppleIRController          320.15com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1com.apple.BootCache          34com.apple.driver.XsanFilter          404com.apple.iokit.IOAHCIBlockStorage          2.2.2com.apple.driver.AppleUSBHub          5.2.5com.apple.iokit.AppleBCM5701Ethernet          3.2.5b3com.apple.driver.AppleFWOHCI          4.9.6com.apple.driver.AirPort.Atheros40          600.70.23com.apple.driver.AppleAHCIPort          2.4.1com.apple.driver.AppleUSBEHCI          5.4.0com.apple.driver.AppleEFINVRAM          1.6.1com.apple.driver.AppleRTC          1.5com.apple.driver.AppleACPIButtons          1.6com.apple.driver.AppleHPET          1.7com.apple.driver.AppleSMBIOS          1.9com.apple.driver.AppleACPIEC          1.6com.apple.driver.AppleAPIC          1.6com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0com.apple.nke.applicationfirewall          4.0.39com.apple.security.quarantine          2com.apple.driver.AppleIntelCPUPowerManagement          196.0.0com.apple.driver.AppleBluetoothHIDKeyboard          165.5com.apple.driver.AppleHIDKeyboard          165.5com.apple.driver.IOBluetoothHIDDriver          4.0.9f33com.apple.driver.AppleMultitouchDriver          235.28com.apple.driver.DspFuncLib          2.3.1f2com.apple.kext.triggers          1.0com.apple.iokit.IOAudioFamily          1.8.9fc10com.apple.kext.OSvKernDSPLib          1.6com.apple.iokit.IOSurface          86.0.3com.apple.iokit.IOSerialFamily          10.0.6com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.0.9f33com.apple.iokit.IOAcceleratorFamily          19.0.26com.apple.iokit.IOBluetoothFamily          4.0.9f33com.apple.kext.AMD6000Controller          8.0.0com.apple.kext.AMDSupport          8.0.0com.apple.driver.AppleThunderboltEDMSink          1.1.8com.apple.driver.AppleThunderboltEDMSource          1.1.8com.apple.driver.AppleHDAController          2.3.1f2com.apple.iokit.IOHDAFamily          2.3.1f2com.apple.driver.AppleGraphicsControl          3.2.11com.apple.driver.AppleSMBusPCI          1.0.10d0com.apple.driver.AppleSMC          3.1.4d2com.apple.driver.IOPlatformPluginLegacy          1.0.0com.apple.driver.IOPlatformPluginFamily          5.2.0d16com.apple.driver.AppleBacklightExpert          1.0.4com.apple.iokit.IONDRVSupport          2.3.5com.apple.driver.AppleSMBusController          1.0.10d0com.apple.iokit.IOGraphicsFamily          2.3.5com.apple.iokit.IOFireWireIP          2.2.5com.apple.driver.AppleThunderboltDPOutAdapter          1.8.5com.apple.driver.AppleThunderboltDPInAdapter          1.8.5com.apple.driver.AppleThunderboltDPAdapterFamily          1.8.5com.apple.driver.AppleThunderboltPCIDownAdapter          1.2.5com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.1com.apple.iokit.IOBDStorageFamily          1.7com.apple.iokit.IODVDStorageFamily          1.7.1com.apple.iokit.IOCDStorageFamily          1.7.1com.apple.iokit.IOAHCISerialATAPI          2.5.0com.apple.iokit.IOUSBHIDDriver          5.2.5com.apple.driver.AppleUSBMergeNub          5.2.5com.apple.iokit.IOUSBUserClient          5.2.5com.apple.driver.AppleThunderboltNHI          1.6.0com.apple.iokit.IOThunderboltFamily          2.1.1com.apple.iokit.IOEthernetAVBController          1.0.2b1com.apple.iokit.IOFireWireFamily          4.5.5com.apple.iokit.IO80211Family          500.15com.apple.iokit.IONetworkingFamily          3.0com.apple.iokit.IOAHCIFamily          2.2.1com.apple.iokit.IOHIDFamily          1.8.0com.apple.driver.AppleEFIRuntime          1.6.1com.apple.iokit.IOSMBusFamily          1.1com.apple.security.sandbox          220com.apple.kext.AppleMatch          1.0.0d1com.apple.security.TMSafetyNet          7com.apple.driver.DiskImages          344com.apple.driver.AppleKeyStore          28.21com.apple.iokit.IOUSBMassStorageClass          3.5.0com.apple.driver.AppleUSBComposite          5.2.5com.apple.iokit.IOSCSIBlockCommandsDevice          3.5.1com.apple.iokit.IOStorageFamily          1.8com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.1com.apple.iokit.IOUSBFamily          5.4.0com.apple.driver.AppleACPIPlatform          1.6com.apple.iokit.IOPCIFamily          2.7.2com.apple.iokit.IOACPIFamily          1.4com.apple.kec.corecrypto          1.0System Profile:Model: iMac12,2, BootROM IM121.0047.B1F, 4 processors, Intel Core i7, 3.4 GHz, 8 GB, SMC 1.72f2Graphics: AMD Radeon HD 6970M, AMD Radeon HD 6970M, PCIe, 1024 MBMemory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020Memory Module: BANK 0/DIMM1, 2 GB, DDR3, 1333 MHz, 0x802C, 0x384B54463235363634485A2D3147344D3120Memory Module: BANK 1/DIMM1, 2 GB, DDR3, 1333 MHz, 0x802C, 0x384B54463235363634485A2D3147344D3120AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x9A), Atheros 9380: 4.0.70.23-P2PBluetooth: Version 4.0.9f33 10885, 2 service, 18 devices, 1 incoming serial portsNetwork Service: AirPort, AirPort, en1Serial ATA Device: WDC WD1001FALS-403AA0, 1 TBSerial ATA Device: OPTIARC DVD RW AD-5680H, 297.2 MBUSB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x850b, 0xfa200000 / 3USB Device: hub_device, 0x0424  (SMSC), 0x2514, 0xfa100000 / 2USB Device: BRCM2046 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0xfa110000 / 4USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0xfa111000 / 5USB Device: hub_device, 0x0424  (SMSC), 0x2514, 0xfd100000 / 2USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 4USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfd110000 / 3&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;Help appreciated.

rkaufmann87 · Accepted Answer

You are getting a Kernel Panic. It appears the KP is occuring when it reaches:net.telestream.driver.TelestreamAudio          1.0.3 The app does not have to be running in order to cause a KP. My recommendation would be to either update it to the most current version or following the developers instructions uninstall it from your computer. Then restart the computer and re-test.

theonlytomah · Answer

That&#x27;s probably ScreenFlow, right?

rkaufmann87 · Answer

I would have no idea which app uses net.telestream.driver.TelestreamAudio          1.0.3 . ,  You will need to use Finder to locate the file and then determine what app uses it.

theonlytomah · Answer

Well, this is back with vengeance.I&#x27;ve tried removing the Telestream software and the BlackBerry software and I still get a blank screen randomly. The last one happened last night when I tried to download AppCleaner to make sure all files from the above programs had been removed. As soon as I clicked &#x27;download&#x27; it went blank and froze.This is persistent, and the annoying thing is that I can&#x27;t get it to restart when I want. I tried pulling out the power cord for a while, several PRAM resets, Safe Mode, try to get into recovery disk to check the drive, etc, etc.Sometimes a few PRAM resets seem to work, other times it will go into the recovery disk, but most of the time it just seems to randomly boot up again after not working for ages. I can&#x27;t find a pattern and I&#x27;ve tried this many times.At the moment I can&#x27;t get it working. I&#x27;ve just removed some Crucial RAM that was installed to see if that helped, but to no avail.Bugging the life out of me.

theonlytomah · Answer

Well, I managed to get it going again (by pure chance it seems).I realised some of the Blackberry stuff remained, so I got rid of it.I then downloaded the Telestream software (Screenflow), removed the audio driver, restarted the machine, opened Screenflow and reinstalled the audio driver.Seems to be working so far, but it&#x27;s too soon to be sure.

rkaufmann87 · Answer

Chances are high you are not following the developers instructions for uninstalling apps. If you follow the developers instructions your chances will improve. If no instructions exist then use an app like app leaner.

theonlytomah · Answer

It has all occured from putting a Time Machine backup from a 2010 iMac to a 2011 iMac. Everything was fine on the 2010.Since software on Macs is inconsistent in uninstalling (some have unistallers, others are packages you just move to Trash) it&#x27;s hard to know whether you&#x27;re doing it right sometimes.Anyway, I was trying to download AppCleaner when it froze last time, so I was unable to get it.

rkaufmann87 · Answer

I agree there is not a consistent way to uninstall apps therefore if you follow these simple rules your chances for successfully uninstalling will improve. Do them in this order!1. Follow developers instructions.2. Use a tool such as AppCleaner.3. Drag app to the Trash.

theonlytomah · Answer

Okay, it has gone again. Gray screen.It doesn&#x27;t seem to be recording the problems in the Console Error Log. Why would that be?Does Apple warranty cover this if it&#x27;s software related and not hardware (although I&#x27;m nearly tempted to believe it could be hardware)?

theonlytomah · Answer

Got it going again and thought I&#x27;d run Repair Permissions from Disk Utility.It found and correctly a heap of things.Good?Well, now when I restart I get a flickering or gray screen once it has booted up. I get to see the desktop sometimes before it goes gray.However, when I press the power button and put it into sleep mode, and then press the power button again to waken it, the gray screen has gone and all seems to work......for a while that it, because it has just frozen on me. No gray screen this time, I just can&#x27;t do anything. The cursor moves, but that&#x27;s it.