I actually do have the 256mb graphics card and I'm still on El Capitan.
Unfortunately I did have another panic. I edited the info.plist with your values so this is what I added, I assume I didn't make any mistakes.
This is what I have:
<key>MacBookPro6,2</key>
<dict>
<key>LogControl</key>
<integer>1</integer>
<key>Vendor10deDevice0a29</key>
<dict>
<key>BoostPState</key>
<array>
<integer>2</integer>
<integer>2</integer>
<integer>2</integer>
<integer>2</integer>
</array>
<key>BoostTime</key>
<array>
<integer>2</integer>
<integer>2</integer>
<integer>2</integer>
<integer>2</integer>
</array>
<key>Heuristic</key>
<dict>
<key>ID</key>
<integer>0</integer>
<key>IdleInterval</key>
<integer>10</integer>
<key>SensorOption</key>
<integer>1</integer>
<key>SensorSampleRate</key>
<integer>10000</integer>
<key>TargetCount</key>
<integer>1</integer>
<key>Threshold_High</key>
<array>
<integer>0</integer>
<integer>0</integer>
<integer>100</integer>
<integer>200</integer>
</array>
<key>Threshold_High_v</key>
<array>
<integer>0</integer>
<integer>0</integer>
<integer>98</integer>
<integer>200</integer>
</array>
<key>Threshold_Low</key>
<array>
<integer>0</integer>
<integer>0</integer>
<integer>0</integer>
<integer>200</integer>
</array>
<key>Threshold_Low_v</key>
<array>
<integer>0</integer>
<integer>0</integer>
<integer>4</integer>
<integer>200</integer>
</array>
</dict>
<key>control-id</key>
<integer>17</integer>
</dict>
This is the log report for the crash
Anonymous UUID: D2CF532E-D725-DC92-7835-79E5EF679B46
Thu Sep 29 13:44:55 2016
*** Panic Report ***
panic(cpu 0 caller 0xffffff7f8c6bcbd5): "GPU Panic: [<None>] 5 3 7f 0 0 0 0 3 : NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff9126316000 0x0a5480a2, D0, P2/4\n"@/Library/Caches/com.apple.xbs/Sources/AppleGraphicsControl/AppleGraphicsControl-3.12.8/src/AppleMuxControl/kext/GPUPanic.cpp:127
Backtrace (CPU 0), Frame : Return Address
0xffffff8112f53550 : 0xffffff80094dab52
0xffffff8112f535d0 : 0xffffff7f8c6bcbd5
0xffffff8112f536b0 : 0xffffff7f8a268fa4
0xffffff8112f53770 : 0xffffff7f8a335add
0xffffff8112f537b0 : 0xffffff7f8a335b48
0xffffff8112f53830 : 0xffffff7f8a5baa23
0xffffff8112f539a0 : 0xffffff7f8a359b79
0xffffff8112f539c0 : 0xffffff7f8a26fcfd
0xffffff8112f53a70 : 0xffffff7f8a26d690
0xffffff8112f53c70 : 0xffffff7f8a26f91f
0xffffff8112f53d60 : 0xffffff7f8bc1e3da
0xffffff8112f53dc0 : 0xffffff7f8bc1b06b
0xffffff8112f53e40 : 0xffffff7f8bc05649
0xffffff8112f53e70 : 0xffffff7f8bbc272a
0xffffff8112f53e90 : 0xffffff7f8bbc3a3b
0xffffff8112f53ed0 : 0xffffff7f8bbc06ab
0xffffff8112f53ef0 : 0xffffff8009ab52a6
0xffffff8112f53f40 : 0xffffff8009ab3111
0xffffff8112f53f80 : 0xffffff8009ab3206
0xffffff8112f53fb0 : 0xffffff80095c9117
Kernel Extensions in backtrace:
com.apple.driver.AppleMuxControl(3.12.8)[3186B630-FFF4-32C9-BAB9-DCD0C9DB6BA2]@0xffffff7f8c6ae000->0xffffff7f8c6c1fff
dependency: com.apple.driver.AppleGraphicsControl(3.12.8)[C57F5F56-2229-365F-9765-F24AA4687584]@0xffffff7f8c6a6000
dependency: com.apple.iokit.IOACPIFamily(1.4)[5D7574C3-8E90-3873-BAEB-D979FC215A7D]@0xffffff7f8a0de000
dependency: com.apple.iokit.IOPCIFamily(2.9)[5447B943-A94D-3BD4-A60F-98B24D19CE93]@0xffffff7f89dff000
dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[A360453D-2050-3C49-A549-AC0DD5E87917]@0xffffff7f89eda000
dependency: com.apple.driver.AppleBacklightExpert(1.1.0)[C49819CE-729A-36B2-9AC1-744A43DC236F]@0xffffff7f8c6a9000
com.apple.nvidia.classic.NVDAResmanTesla(10.0)[05FC5D7E-BB0B-3232-BBBD-8A49B6870D8B]@0xffffff7f8a212000->0xffffff7f8a487fff
dependency: com.apple.iokit.IOPCIFamily(2.9)[5447B943-A94D-3BD4-A60F-98B24D19CE93]@0xffffff7f89dff000
dependency: com.apple.iokit.IONDRVSupport(2.4.1)[4EB2843C-C821-3AD0-B333-575FD6ED6FB1]@0xffffff7f8a202000
dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[A360453D-2050-3C49-A549-AC0DD5E87917]@0xffffff7f89eda000
com.apple.GeForceTesla(10.0)[07CD2F70-A8DD-32EA-85C0-90433204BDAC]@0xffffff7f8bbba000->0xffffff7f8bc85fff
dependency: com.apple.iokit.IOPCIFamily(2.9)[5447B943-A94D-3BD4-A60F-98B24D19CE93]@0xffffff7f89dff000
dependency: com.apple.iokit.IONDRVSupport(2.4.1)[4EB2843C-C821-3AD0-B333-575FD6ED6FB1]@0xffffff7f8a202000
dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[A360453D-2050-3C49-A549-AC0DD5E87917]@0xffffff7f89eda000
dependency: com.apple.nvidia.classic.NVDAResmanTesla(10.0.0)[05FC5D7E-BB0B-3232-BBBD-8A49B6870D8B]@0xffffff7f8a212000
com.apple.nvidia.classic.NVDANV50HalTesla(10.0)[56199CA6-3C8D-3EBB-B5EF-7B1B4678ACF9]@0xffffff7f8a492000->0xffffff7f8a73ffff
dependency: com.apple.nvidia.classic.NVDAResmanTesla(10.0.0)[05FC5D7E-BB0B-3232-BBBD-8A49B6870D8B]@0xffffff7f8a212000
dependency: com.apple.iokit.IOPCIFamily(2.9)[5447B943-A94D-3BD4-A60F-98B24D19CE93]@0xffffff7f89dff000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
15G1004
Kernel version:
Darwin Kernel Version 15.6.0: Mon Aug 29 20:21:34 PDT 2016; root:xnu-3248.60.11~1/RELEASE_X86_64
Kernel UUID: E349749B-3303-3DDF-959C-B5885A0E1F6E
Kernel slide: 0x0000000009200000
Kernel text base: 0xffffff8009400000
__HIB text base: 0xffffff8009300000
System model name: MacBookPro6,2 (Mac-F22586C8)
System uptime in nanoseconds: 1612290069247
last loaded kext at 65144258669: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7f8a765000, size 69632)
last unloaded kext at 163921597445: com.apple.driver.usb.AppleUSBUHCI 1.0.1 (addr 0xffffff7f8ab85000, size 126976)
loaded kexts:
com.kairos.driver.DuetDisplay 1
net.telestream.driver.TelestreamAudio 1.1.1
com.apple.filesystems.msdosfs 1.10
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.driver.AGPM 110.22.0
com.apple.filesystems.autofs 3.0
com.apple.iokit.IOBluetoothSerialManager 4.4.6f1
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleMikeyDriver 274.12
com.apple.driver.AudioAUUC 1.70
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.driver.AppleHDA 274.12
com.apple.driver.AppleIntelHDGraphics 10.0.0
com.apple.driver.pmtelemetry 1
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleMCCSControl 1.2.13
com.apple.GeForceTesla 10.0.0
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.driver.AppleLPC 3.1
com.apple.driver.AppleHV 1
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
com.apple.driver.AppleIntelHDGraphicsFB 10.0.0
com.apple.driver.AppleSMCLMU 208
com.apple.driver.AppleMuxControl 3.12.8
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.4.6f1
com.apple.driver.SMCMotionSensor 3.0.4d1
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleUSBTCButtons 245.4
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0
com.apple.BootCache 38
com.apple.driver.AppleUSBTCKeyboard 245.4
com.apple.driver.AppleUSBCardReader 3.7.1
com.apple.driver.AppleIRController 327.6
com.apple.iokit.SCSITaskUserClient 3.7.7
com.apple.iokit.IOAHCIBlockStorage 2.8.5
com.apple.driver.AirPort.Brcm4331 800.20.24
com.apple.iokit.AppleBCM5701Ethernet 10.2.0
com.apple.driver.AppleFWOHCI 5.5.4
com.apple.driver.AppleAHCIPort 3.1.8
com.apple.driver.usb.AppleUSBEHCIPCI 1.0.1
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleACPIButtons 4.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 4.0
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0
com.apple.nke.applicationfirewall 163
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 218.0.0
com.apple.AppleGraphicsDeviceControl 3.12.8
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 11
com.apple.driver.DspFuncLib 274.12
com.apple.kext.OSvKernDSPLib 525
com.apple.nvidia.classic.NVDANV50HalTesla 10.0.0
com.apple.iokit.IOSurface 108.2.3
com.apple.nvidia.classic.NVDAResmanTesla 10.0.0
com.apple.driver.AppleSMBusController 1.0.14d1
com.apple.driver.CoreCaptureResponder 1
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.iokit.IOFireWireIP 2.2.6
com.apple.driver.AppleHDAController 274.12
com.apple.iokit.IOHDAFamily 274.12
com.apple.iokit.IOAudioFamily 204.4
com.apple.vecLib.kext 1.2.0
com.apple.driver.AppleBacklightExpert 1.1.0
com.apple.driver.AppleGraphicsControl 3.12.8
com.apple.driver.AppleSMBusPCI 1.0.14d1
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.4.6f1
com.apple.iokit.IOBluetoothFamily 4.4.6f1
com.apple.driver.AppleSMC 3.1.9
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.IOPlatformPluginFamily 6.0.0d7
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.driver.CoreStorage 517.50.1
com.apple.driver.usb.IOUSBHostHIDDevice 1.0.1
com.apple.driver.AppleUSBMultitouch 250.5
com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.7
com.apple.iokit.IOUSBMassStorageDriver 1.0.0
com.apple.iokit.IOUSBHIDDriver 900.4.1
com.apple.driver.usb.cdc 5.0.0
com.apple.driver.usb.networking 5.0.0
com.apple.driver.usb.AppleUSBHostCompositeDevice 1.0.1
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.7
com.apple.iokit.IOBDStorageFamily 1.8
com.apple.iokit.IODVDStorageFamily 1.8
com.apple.iokit.IOCDStorageFamily 1.8
com.apple.driver.usb.AppleUSBHub 1.0.1
com.apple.iokit.IOAHCISerialATAPI 2.6.2
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.7
com.apple.iokit.IOEthernetAVBController 1.0.3b3
com.apple.iokit.IO80211Family 1110.26
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IONetworkingFamily 3.2
com.apple.driver.corecapture 1.0.4
com.apple.iokit.IOFireWireFamily 4.6.1
com.apple.iokit.IOAHCIFamily 2.8.1
com.apple.iokit.IOUSBFamily 900.4.1
com.apple.driver.usb.AppleUSBEHCI 1.0.1
com.apple.iokit.IOUSBHostFamily 1.0.1
com.apple.driver.AppleUSBHostMergeProperties 1.0.1
com.apple.driver.AppleEFINVRAM 2.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 300.0
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.AppleKeyStore 2
com.apple.driver.AppleMobileFileIntegrity 1.0.5
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.DiskImages 417.4
com.apple.iokit.IOStorageFamily 2.1
com.apple.iokit.IOReportFamily 31
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 4.0
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.pthread 1
com.apple.kec.corecrypto 1.0
com.apple.kec.Libm 1