Erreur écran noir

Bonjour,
Mon mac book pro qui a maintenant 5 ans se portait jusque là à merveille!
Cela fait 2 fois en un mois, alors que seulement une page internet est ouverte, que l'écran devient noir, l'ordinateur n'est pas éteint(clavier allumé), obligée d'appuyer long sur le bouton démarrage pour forcer le redémarrage.
A l'allumage ce message d'erreur ci-dessous...
Autant dire qu'avec mes connaissances informatiques je n'y comprends rien.
Ayant besoin d'un ordinateur fiable pour l'année difficile qui s'annonce, j'aimerais savoir si cela est grave, si je peux faire moi même quelque chose ou si je dois l'emmener chez un réparateur mac...
Help!

Camille



Interval Since Last Panic Report: 501514 sec
Panics Since Last Report: 1
Anonymous UUID: 66A4CEC0-E91B-4619-AEF0-D317E7BCC65C

Sat Oct 24 12:44:49 2015
panic(cpu 1 caller 0x9d4c97): NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xc0000000 0x7f43f000 0x0a5480a2, D0, P2/4
Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0x5c6fa188 : 0x21b837 (0x5dd7fc 0x5c6fa1bc 0x223ce1 0x0)
0x5c6fa1d8 : 0x9d4c97 (0xbea22c 0xc5a840 0xbf8f88 0x0)
0x5c6fa278 : 0xaef5db (0x912c004 0x9593004 0x100 0xcb42b6)
0x5c6fa2c8 : 0xae65d4 (0x9593004 0x100 0x5c6fa2f8 0x9c4774)
0x5c6fa2f8 : 0x16d5965 (0x9593004 0x100 0x438004ee 0x1)
0x5c6fa438 : 0xb0e258 (0x9593004 0x9696004 0x0 0x0)
0x5c6fa478 : 0x9dde2b (0x9593004 0x9696004 0x0 0x0)
0x5c6fa518 : 0x9da50a (0x0 0x9 0x0 0x0)
0x5c6fa6c8 : 0x9dc53e (0x0 0x600d600d 0x702b 0x5c6fa6f8)
0x5c6fa798 : 0xc9feae (0xc1d00041 0xbfef0033 0xbfef0034 0x857c)
0x5c6fa808 : 0xcaf734 (0xa91b000 0xb5bea80 0x0 0x3)
0x5c6fa828 : 0xcd4322 (0xb5bea80 0xb 0x5c6fa880 0x10)
0x5c6fa858 : 0xcd4b3d (0x9772000 0x0 0x5c6fa87c 0x0)
0x5c6fa888 : 0xcb4d79 (0x9772000 0x94b20080 0x0 0x0)
0x5c6fa8d8 : 0xc76d0c (0x4645c000 0x0 0x0 0x3)
0x5c6fa948 : 0xc7640f (0x4645c000 0x0 0x2 0x3)
0x5c6fa978 : 0xc6c05f (0x4645c000 0x0 0x2 0x463b9000)
0x5c6faab8 : 0xca55d8 (0x463b9000 0x1 0x5c6fabcc 0x5c6fabc8)
0x5c6fab68 : 0xc67fe1 (0x463b9000 0x1 0x5c6fabcc 0x5c6fabc8)
0x5c6fabe8 : 0x56da06 (0x463b9000 0x0 0x5c6fae3c 0x5c6fac74)
0x5c6fac38 : 0x56e2a5 (0xcf6720 0x463b9000 0x9f5f188 0x1)
0x5c6fac88 : 0x56eb59 (0x463b9000 0x10 0x5c6facd0 0x0)
0x5c6fada8 : 0x286638 (0x463b9000 0x10 0x9f5f188 0x1)
0x5c6fbe58 : 0x21dbe5 (0x9f5f160 0x87115a0 0x1fd7e8 0x5d43)
0x5c6fbe98 : 0x210a86 (0x9f5f100 0x0 0x96799d0 0x97d37e0)
0x5c6fbef8 : 0x216f84 (0x9f5f100 0x0 0x0 0x0)
0x5c6fbf78 : 0x295c57 (0x9691f08 0x0 0x0 0x0)
0x5c6fbfc8 : 0x2a256d (0x9691f04 0x1 0x10 0x8c2b164)
Kernel Extensions in backtrace (with dependencies):
com.apple.GeForce(6.3.6)@0xc5c000->0xd12fff
dependency: com.apple.NVDAResman(6.3.6)@0x96e000
dependency: com.apple.iokit.IONDRVSupport(2.2)@0x961000
dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x928000
dependency: com.apple.iokit.IOGraphicsFamily(2.2)@0x93f000
com.apple.nvidia.nv50hal(6.3.6)@0x159f000->0x19b3fff
dependency: com.apple.NVDAResman(6.3.6)@0x96e000
com.apple.NVDAResman(6.3.6)@0x96e000->0xc5bfff
dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x928000
dependency: com.apple.iokit.IONDRVSupport(2.2)@0x961000
dependency: com.apple.iokit.IOGraphicsFamily(2.2)@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: 28825194363570
unloaded kexts:
com.apple.driver.AppleUSBUHCI 4.2.0 (addr 0x142d000, size 0x65536) - last unloaded 117485795666
loaded kexts:
com.apple.driver.AppleHWSensor 1.9.3d0 - last loaded 37115107447
com.apple.driver.AGPM 100.12.31
com.apple.driver.AppleMikeyHIDDriver 1.2.0
com.apple.driver.AppleHDA 2.0.5f14
com.apple.driver.AudioAUUC 1.57
com.apple.driver.AppleMikeyDriver 2.0.5f14
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AudioIPCDriver 1.1.6
com.apple.driver.SMCMotionSensor 3.0.1d2
com.apple.driver.AppleUpstreamUserClient 3.5.7
com.apple.driver.AppleMCCSControl 1.0.20
com.apple.driver.AppleIntelHDGraphics 6.3.6
com.apple.driver.AppleIntelHDGraphicsFB 6.3.6
com.apple.filesystems.autofs 2.1.0
com.apple.driver.ACPI_SMC_PlatformPlugin 4.7.0a1
com.apple.driver.AppleGraphicsControl 2.10.6
com.apple.driver.AppleLPC 1.5.1
com.apple.kext.AppleSMCLMU 1.5.2d10
com.apple.GeForce 6.3.6
com.apple.driver.AppleUSBTCButtons 201.6
com.apple.driver.AppleUSBTCKeyboard 201.6
com.apple.driver.AppleIRController 303.8
com.apple.driver.AppleUSBCardReader 2.6.1
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.AppleFWOHCI 4.7.3
com.apple.driver.AppleUSBHub 4.2.4
com.apple.driver.AirPortBrcm43224 428.42.4
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 2.1.12
com.apple.driver.AppleIntelCPUPowerManagement 142.6.0
com.apple.driver.AppleProfileReadCounterAction 17
com.apple.driver.AppleProfileTimestampAction 10
com.apple.driver.AppleProfileThreadInfoAction 14
com.apple.driver.DspFuncLib 2.0.5f14
com.apple.driver.AppleProfileRegisterStateAction 10
com.apple.driver.AppleProfileKEventAction 10
com.apple.driver.AppleProfileCallstackAction 20
com.apple.iokit.IOSurface 74.2
com.apple.iokit.IOBluetoothSerialManager 2.4.5f3
com.apple.iokit.IOSerialFamily 10.0.3
com.apple.iokit.IOAudioFamily 1.8.3fc2
com.apple.kext.OSvKernDSPLib 1.3
com.apple.driver.AppleSMBusController 1.0.10d0
com.apple.iokit.IOFireWireIP 2.0.3
com.apple.driver.AppleHDAController 2.0.5f14
com.apple.iokit.IOHDAFamily 2.0.5f14
com.apple.iokit.AppleProfileFamily 41
com.apple.driver.IOPlatformPluginFamily 4.7.0a1
com.apple.driver.AppleSMBusPCI 1.0.10d0
com.apple.driver.AppleBacklightExpert 1.0.1
com.apple.driver.AppleSMC 3.1.0d5
com.apple.nvidia.nv50hal 6.3.6
com.apple.NVDAResman 6.3.6
com.apple.iokit.IONDRVSupport 2.2
com.apple.iokit.IOGraphicsFamily 2.2
com.apple.driver.BroadcomUSBBluetoothHCIController 2.4.5f3
com.apple.driver.AppleUSBBluetoothHCIController 2.4.5f3
com.apple.iokit.IOBluetoothFamily 2.4.5f3
com.apple.driver.AppleUSBMultitouch 207.7
com.apple.iokit.IOUSBHIDDriver 4.2.0
com.apple.iokit.IOSCSIBlockCommandsDevice 2.6.8
com.apple.iokit.IOUSBMassStorageClass 2.6.7
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.IOFireWireFamily 4.2.6
com.apple.iokit.IOUSBUserClient 4.2.4
com.apple.iokit.IO80211Family 320.1
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
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.B0C, 2 processors, Intel Core i5, 2.4 GHz, 4 GB, SMC 1.58f16
Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 256 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, 12 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: TOSHIBA MK3255GSXF, 298,09 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.), 0x0237, 0xfa120000 / 4
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 3
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8218, 0xfa113000 / 8
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