[10.10 Yosemite] WindowServer Crash zurück zum Login Screen

[MacBookProUser]

Hallo Zusammen,

gerade als ich in Safari unterwegs war flackerte der Bildschirm meines rMBP und ich landete wieder beim Login Screen. Füge Euch anbei einen Teil des Crash-Reports (der komplette sprengt die Foren-Vorgaben), das Problem lag wohl beim WindowServer. Habt Ihr eine Idee, wo der Fehler liegen könnte?

Vielen Dank und viele Grüße,
Jörg

Spoiler: Crash-Report WindowServer

Process: WindowServer [112]
Path: /System/Library/Frameworks/CoreGraphics.framework/Versions/A/Resources/WindowServer
Identifier: WindowServer
Version: 1
Code Type: X86-64 (Native)
Parent Process: launchd [1]
Responsible: WindowServer [112]
User ID: 88

Date/Time: 2015-02-16 14:21:13.627 +0100
OS Version: Mac OS X 10.10.2 (14C109)
Report Version: 11

Time Awake Since Boot: 10000 seconds

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000159395640

VM Regions Near 0x159395640:
VM_ALLOCATE 000000015938d000-000000015938f000 [ 8K] rw-/rwx SM=PRV
--> VM_ALLOCATE 000000015938f000-0000000159396000 [ 28K] rw-/rwx SM=COW
VM_ALLOCATE 0000000159396000-000000015939a000 [ 16K] rw-/rwx SM=PRV

Binary Images:
0x10fa1c000 - 0x10fa1cfff WindowServer (1) <DE442EA4-37E9-305A-849A-B9A9D8C57AD2> /System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreGraphics.framework/Resources/WindowServer
0x10fb97000 - 0x10fb98fff com.apple.driver.IOAccelerator2D (156.6 - 156.6) <53576C13-EF2C-339D-A812-144953AB81BF> /System/Library/Extensions/IOAccelerator2D.plugin/Contents/MacOS/IOAccelerator2D
0x10fba4000 - 0x10fbabff7 com.apple.AmbientDisplay (1.0 - 1) <809A7F90-EAE7-3677-88D3-A7E30EF27641> /System/Library/PrivateFrameworks/AmbientDisplay.framework/AmbientDisplay
0x157fac000 - 0x157fbcfff com.apple.AppleGVACoreFramework (8.2.10 - 8.2.10) <22896DB5-5AFF-3F44-B31B-741FBFC5DE01> /System/Library/PrivateFrameworks/AppleGVACore.framework/AppleGVACore
0x123400000000 - 0x1234004f7fff com.apple.driver.AppleIntelHD5000GraphicsGLDriver (10.2.46 - 10.0.2) <35154588-E0D4-3FB3-8C0E-C7D1FA6C646E> /System/Library/Extensions/AppleIntelHD5000GraphicsGLDriver.bundle/Contents/MacOS/AppleIntelHD5000GraphicsGLDriver
0x7fff660ef000 - 0x7fff66125837 dyld (353.2.1) <65DCCB06-339C-3E25-9702-600A28291D0E> /usr/lib/dyld
0x7fff87b7a000 - 0x7fff87b97fff libsystem_kernel.dylib (2782.10.72) <97CD7ACD-EA0C-3434-BEFC-FCD013D6BB73> /usr/lib/system/libsystem_kernel.dylib
0x7fff87b9b000 - 0x7fff87ba6fff libcommonCrypto.dylib (60061) <D381EBC6-69D8-31D3-8084-5A80A32CB748> /usr/lib/system/libcommonCrypto.dylib
0x7fff87bb3000 - 0x7fff87bf3ff7 libGLImage.dylib (11.1.1) <3986BFA3-4F55-380F-B01D-91BA9785D70C> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dylib
0x7fff87bf4000 - 0x7fff87edbffb com.apple.CoreServices.CarbonCore (1108.2 - 1108.2) <FD87F83F-301A-3BD6-8262-5692FC1B4457> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore
...

External Modification Summary:
Calls made by other processes targeting this process:
task_for_pid: 33
thread_create: 0
thread_set_state: 0
Calls made by this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by all processes on this machine:
task_for_pid: 9364
thread_create: 0
thread_set_state: 0

VM Region Summary:
ReadOnly portion of Libraries: Total=180.5M resident=218.9M(121%) swapped_out_or_unallocated=16777216.0T(9745098342400%)
Writable regions: Total=1.7G written=62.6M(4%) resident=271.0M(16%) swapped_out=0K(0%) unallocated=1.4G(84%)