VMware Horizon Community
sabienbosman
Contributor
Contributor

Computer crashes using VMware horizon

Hi all,

My Macbook Pro (version 14.1) keeps crashing while using VMware horizon client (newest version). I have reinstalled the software several times, but this does not fix the problem. Does anyone know why this happens and how I can fix this?
This is latest crash rapport:

{"bug_type":"284","timestamp":"2023-10-30 15:08:14.00 +0100","os_version":"macOS 14.1 (23B74)","roots_installed":0,"incident_id":"4B898DF5-418B-445F-BDAD-3ECDFDC2AA52"}
{
"roots_installed"

: 0,
"bug_type" : "284",
"process_name" : "WindowServer",
"registers" : {},
"timestamp" : 1698674894,
"analysis" : {"iofence_list":{"iofence_num_iosurfaces":2,"iofence_iosurfaces":[{"iofence_current_queue":[{"iofence_acceleratorid":1,"iofence_backtrace":[-2198297031444,-2198297029952,-2198318371092,-2198332046740,-2198318376160,-2198318482032,-2198331749560,-2198331690800],"iofence_direction":1}],"iosurface_id":137,"iofence_waiting_queue":[{"iofence_acceleratorid":2,"iofence_backtrace":[-2198840931092,-2198840929600,-2198874141924,-2198874562676,-2198844625844,-2198874414776,-2198874442508,-2198874444156],"iofence_direction":2},{"iofence_acceleratorid":0,"iofence_backtrace":[-2198840931092,-2198840929600,-2198843331184,-2198843321704,-2198843327900,-2198843105196,-2198843094716,-2198843096484],"iofence_direction":1},{"iofence_acceleratorid":2,"iofence_backtrace":[-2198840931092,-2198840929600,-2198874141924,-2198874562676,-2198844625844,-2198874414776,-2198874442508,-2198874444156],"iofence_direction":1}]},{"iofence_current_queue":[{"iofence_acceleratorid":2,"iofence_backtrace":[-2198297031444,-2198297029952,-2198330242276,-2198330663220,-2198300726196,-2198330515128,-2198330542860,-2198330544508],"iofence_direction":1}],"iosurface_id":394,"iofence_waiting_queue":[]}]},"fw_ta_substate":{"slot0":0,"slot1":0},"fw_power_state":0,"fw_power_boost_controller":0,"guilty_dm":1,"fw_power_controller_in_charge":0,"fw_cl_state":{"slot0":0,"slot1":0,"slot2":0},"fw_perf_state_lo":3,"fw_ta_state":{"slot0":0,"slot1":0},"signature":625,"fw_power_substate":4,"command_buffer_trace_id":638191390,"fw_perf_state_select":0,"restart_reason":7,"fw_3d_state":{"slot0":0,"slot1":0,"slot2":0},"fw_gpc_perf_state":0,"fw_perf_state_hi":3,"fw_power_limit_controller":7,"restart_reason_desc":"blocked by IOFence"}
}

 

With the problem code:

panic(cpu 2 caller 0xfffffe002559f038): "dart-dispext0 (0xfffffe16758c8000): DART(DART) error: SID 0 TTBR invalid exception on read with DVA 0x2c6c000 (TTBR 0 SEG 0x1 PTE 0x31b) ERROR_STATUS 0x80000001 TIME 0x472948f106 TTE 0xffffffffffffffff AXI_ID 0x1)" @AppleT8020DART.cpp:1439

Debugger message: panic

Memory ID: 0x6

OS release type: User

OS version: 23A344

Kernel version: Darwin Kernel Version 23.0.0: Fri Sep 15 14:41:34 PDT 2023; root:xnu-10002.1.13~1/RELEASE_ARM64_T8103

Fileset Kernelcache UUID: 7CD3C0485714106B76F60CFF2DED0D9D

Kernel UUID: 9D9158F9-0E6D-30C0-BBA9-519175145599

Boot session UUID: 263167D5-72CC-4FDD-B361-1646EC0963FD

iBoot version: iBoot-10151.1.1

secure boot?: YES

roots installed: 0

Paniclog version: 14

KernelCache slide: 0x000000001b7f8000

KernelCache base:  0xfffffe00227fc000

Kernel slide:      0x000000001b800000

Kernel text base:  0xfffffe0022804000

Kernel text exec slide: 0x000000001ccf4000

Kernel text exec base:  0xfffffe0023cf8000

mach_absolute_time: 0x1b5420d71

Epoch Time:        sec       usec

 

 

  Boot    : 0x653f785c 0x0007ae98

  Sleep   : 0x653f795a 0x000e818e

  Wake    : 0x653f795b 0x0000def8

  Calendar: 0x653f7989 0x000d30fd

 

Zone info:

  Zone map: 0xfffffe100ef1c000 - 0xfffffe300ef1c000

  . VM    : 0xfffffe100ef1c000 - 0xfffffe14dbbe8000

  . RO    : 0xfffffe14dbbe8000 - 0xfffffe1675580000

  . GEN0  : 0xfffffe1675580000 - 0xfffffe1b4224c000

  . GEN1  : 0xfffffe1b4224c000 - 0xfffffe200ef18000

  . GEN2  : 0xfffffe200ef18000 - 0xfffffe24dbbe4000

  . GEN3  : 0xfffffe24dbbe4000 - 0xfffffe29a88b0000

  . DATA  : 0xfffffe29a88b0000 - 0xfffffe300ef1c000

  Metadata: 0xfffffe300ef2c000 - 0xfffffe3016f2c000

  Bitmaps : 0xfffffe3016f2c000 - 0xfffffe301851c000

  Extra   : 0 - 0

 

CORE 0 recently retired instr at 0xfffffe0023ea303c

CORE 1 recently retired instr at 0xfffffe0023ea303c

CORE 2 recently retired instr at 0xfffffe0023ea1840

CORE 3 recently retired instr at 0xfffffe0023ea303c

CORE 4 recently retired instr at 0xfffffe0023ea303c

CORE 5 recently retired instr at 0xfffffe0023ea303c

CORE 6 recently retired instr at 0xfffffe0023ea303c

CORE 7 recently retired instr at 0xfffffe0023ea303c

TPIDRx_ELy = {1: 0xfffffe24db0400c0  0: 0x0000000000000002  0ro: 0x00000001700930e0 }

CORE 0 PVH locks held: None

CORE 1 PVH locks held: None

CORE 2 PVH locks held: None

CORE 3 PVH locks held: None

CORE 4 PVH locks held: None

CORE 5 PVH locks held: None

CORE 6 PVH locks held: None

CORE 7 PVH locks held: None

CORE 0: PC=0xfffffe0023dc1a3c, LR=0xfffffe0023dc1a3c, FP=0xfffffe301f6a3e40

CORE 1: PC=0xfffffe0023dc8f18, LR=0xfffffe0023d63904, FP=0xfffffe302080bcf0

CORE 2 is the one that panicked. Check the full backtrace for details.

CORE 3: PC=0x0000000185fd5ae0, LR=0x000000019d3cf920, FP=0x000000017011e2e0

CORE 4: PC=0xfffffe0023d8bc08, LR=0xfffffe0023d8bc08, FP=0xfffffe301f973ef0

CORE 5: PC=0xfffffe0023d8bc08, LR=0xfffffe0023d8bc08, FP=0xfffffe302097fef0

CORE 6: PC=0xfffffe0023d8bc08, LR=0xfffffe0023d8bc08, FP=0xfffffe30205dfef0

CORE 7: PC=0xfffffe0023d8bc08, LR=0xfffffe0023d8bc08, FP=0xfffffe3020967ef0

Compressor Info: 5% of compressed pages limit (OK) and 3% of segments limit (OK) with 0 swapfiles and OK swap space

Panicked task 0xfffffe200fc7ebe8: 1912 pages, 10 threads: pid 448: airportd

Panicked thread: 0xfffffe24db0400c0, backtrace: 0xfffffe4a0e3ab500, tid: 20493

  lr: 0xfffffe0023d51264  fp: 0xfffffe4a0e3ab590

  lr: 0xfffffe0023ea9490  fp: 0xfffffe4a0e3ab5b0

  lr: 0xfffffe0023e9a4c8  fp: 0xfffffe4a0e3ab620

  lr: 0xfffffe0023e9893c  fp: 0xfffffe4a0e3ab710

  lr: 0xfffffe0023cffaa4  fp: 0xfffffe4a0e3ab720

  lr: 0xfffffe0023d50b44  fp: 0xfffffe4a0e3abad0

  lr: 0xfffffe002456154c  fp: 0xfffffe4a0e3abaf0

  lr: 0xfffffe002559f038  fp: 0xfffffe4a0e3abd40

  lr: 0xfffffe002559eb08  fp: 0xfffffe4a0e3abde0

  lr: 0xfffffe002559e1e0  fp: 0xfffffe4a0e3abe90

  lr: 0xfffffe002446788c  fp: 0xfffffe4a0e3abed0

  lr: 0xfffffe00244a5a80  fp: 0xfffffe4a0e3abf20

  lr: 0xfffffe00250c31b0  fp: 0xfffffe4a0e3abfb0

  lr: 0xfffffe0024491838  fp: 0xfffffe4a0e3abfc0

  lr: 0xfffffe0023e9bd4c  fp: 0xfffffe4a0e3abfe0

  lr: 0xfffffe0023cffb18  fp: 0xfffffe4a0e3abff0

      Kernel Extensions in backtrace:

         com.apple.driver.AppleT8020DART(1.0)[4095B0F0-8878-3574-A575-219CEC9E8F91]@0xfffffe0025599670->0xfffffe00255a10d7

            dependency: com.apple.driver.AppleARMPlatform(1.0.2)[46E2D12C-E153-3DD2-999C-FFF05EC8A75E]@0xfffffe00246f7ad0->0xfffffe002474a3b7

            dependency: com.apple.driver.IODARTFamily(1)[F891B63C-A9DE-362C-A0B9-55A857151181]@0xfffffe00260f56a0->0xfffffe002610947f

         com.apple.driver.AppleInterruptController(1.0d1)[670C3F2A-76C1-3FC4-AE16-6415B8680D41]@0xfffffe00250c02d0->0xfffffe00250c402b

            dependency: com.apple.driver.AppleARMPlatform(1.0.2)[46E2D12C-E153-3DD2-999C-FFF05EC8A75E]@0xfffffe00246f7ad0->0xfffffe002474a3b7

 

last started kext at 956406514: com.apple.filesystems.autofs 3.0 (addr 0xfffffe00231cdbd0, size 5912)

loaded kexts:

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleBluetoothMultitouch 100

com.apple.iokit.SCSITaskUserClient 492

com.apple.driver.AppleTopCaseHIDEventDriver 7400.26

com.apple.driver.AppleUSBMassStorageInterfaceNub 556

com.apple.driver.CoreKDL 1

com.apple.driver.AppleBiometricServices 1

com.apple.driver.AppleALSColorSensor 1.0.0d1

com.apple.driver.AppleAOPVoiceTrigger 300.7

com.apple.driver.DiskImages.ReadWriteDiskImage 493.0.0

com.apple.driver.DiskImages.UDIFDiskImage 493.0.0

com.apple.driver.DiskImages.RAMBackingStore 493.0.0

com.apple.driver.DiskImages.FileBackingStore 493.0.0

com.apple.driver.SEPHibernation 1

com.apple.driver.BCMWLANFirmware4378.Hashstore 1

com.apple.driver.AppleThunderboltIP 4.0.3

com.apple.driver.AppleUSBDeviceNCM 5.0.0

com.apple.driver.AppleSmartBatteryManager 161.0.0

com.apple.driver.AppleFileSystemDriver 3.0.1

com.apple.nke.l2tp 1.9

com.apple.filesystems.tmpfs 1

com.apple.filesystems.nfs 1

com.apple.filesystems.lifs 1

com.apple.filesystems.apfs 2235.0.13

com.apple.IOTextEncryptionFamily 1.0.0

com.apple.filesystems.hfs.kext 650.0.2

com.apple.security.BootPolicy 1

com.apple.BootCache 40

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleEmbeddedSimpleSPINORFlasher 1

com.apple.driver.ApplePMP 1

com.apple.driver.AppleSmartIO2 1

com.apple.driver.ApplePMPFirmware 1

com.apple.driver.AppleDPDisplayTCON 1

com.apple.driver.AppleTAS5770LAmp 700.46

com.apple.driver.AppleCS42L83Audio 700.46

com.apple.driver.AppleSummitLCD 1.0.0

com.apple.driver.AppleT8020SOCTuner 1

com.apple.driver.AppleT8103CLPCv3 1

com.apple.driver.AppleT8103PMGR 1

com.apple.driver.AppleS5L8960XNCO 1

com.apple.driver.AppleEventLogHandler 1

com.apple.driver.AppleS8000DWI 1.0.0d1

com.apple.driver.AppleInterruptController 1.0.0d1

com.apple.driver.AppleAVE2 703.6.9

com.apple.driver.AppleJPEGDriver 6.1.1

com.apple.driver.AppleAVD 732

com.apple.driver.AppleSerialShim 1

com.apple.driver.AppleMobileDispH13G-DCP 140.0

com.apple.AGXG13G 275.6

com.apple.driver.AudioDMAController-T8103 300.15

com.apple.driver.AppleS8000AES 1

com.apple.driver.usb.AppleSynopsysUSB40XHCI 1

com.apple.driver.AppleBluetoothModule 1

com.apple.driver.AppleSamsungSerial 1.0.0d1

com.apple.driver.AppleBCMWLANBusInterfacePCIe 1

com.apple.driver.AppleT8020DART 1

com.apple.driver.AppleSynopsysMIPIDSI 1.0.0

com.apple.driver.AppleS5L8920XPWM 1.0.0d1

com.apple.driver.AppleS5L8940XI2C 1.0.0d2

com.apple.driver.AppleSPIMC 1

com.apple.driver.AppleT8101 1

com.apple.driver.AppleM68Buttons 1.0.0d1

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.driver.usb.AppleUSBUserHCI 1

com.apple.iokit.IOKitRegistryCompatibility 1

com.apple.iokit.EndpointSecurity 1

com.apple.driver.AppleDiskImages2 272.0.0

com.apple.AppleSystemPolicy 2.0.0

com.apple.nke.applicationfirewall 404

com.apple.kec.InvalidateHmac 1

com.apple.kec.AppleEncryptedArchive 1

com.apple.driver.driverkit.serial 6.0.0

com.apple.driver.usb.IOUSBHostHIDDevice 1.2

com.apple.iokit.IOAVBFamily 1200.18

com.apple.driver.AppleHIDKeyboard 7400.2

com.apple.driver.AppleActuatorDriver 7400.42

com.apple.driver.AppleMultitouchDriver 7400.42

com.apple.driver.AppleHSBluetoothDriver 7400.26

com.apple.driver.IOBluetoothHIDDriver 9.0.0

com.apple.driver.usb.cdc 5.0.0

com.apple.driver.AppleUSBAudio 600.40

com.apple.iokit.IOAudioFamily 500.4

com.apple.vecLib.kext 1.2.0

com.apple.driver.AppleMesaSEPDriver 100.99

com.apple.iokit.IOBiometricFamily 1

com.apple.driver.AppleUVDMDriver 1.0.0

com.apple.driver.AppleAOPAudio 300.14

com.apple.driver.DiskImages.KernelBacked 493.0.0

com.apple.driver.AppleSEPHDCPManager 1.0.1

com.apple.driver.AppleTrustedAccessory 1

com.apple.iokit.AppleSEPGenericTransfer 1

com.apple.driver.AppleXsanScheme 3

com.apple.driver.AppleBTM 1.0.1

com.apple.driver.AppleConvergedIPCOLYBTControl 1

com.apple.driver.AppleConvergedPCI 1

com.apple.driver.AppleBluetoothDebug 1

com.apple.driver.usb.networking 5.0.0

com.apple.driver.AppleThunderboltDPInAdapter 8.5.1

com.apple.driver.AppleThunderboltDPAdapterFamily 8.5.1

com.apple.driver.AppleThunderboltUSBDownAdapter 1.0.4

com.apple.driver.AppleThunderboltPCIDownAdapter 4.1.1

com.apple.driver.AppleDCPDPTXProxy 1.0.0

com.apple.nke.ppp 1.9

com.apple.driver.DCPDPFamilyProxy 1

com.apple.driver.AppleBSDKextStarter 3

com.apple.kext.triggers 1.0

com.apple.driver.IOHIDPowerSource 1

com.apple.driver.AppleCallbackPowerSource 1

com.apple.filesystems.hfs.encodings.kext 1

com.apple.driver.AppleSyntheticGameController 11.0.24

com.apple.driver.AppleDiagnosticDataAccessReadOnly 1.0.0

com.apple.iokit.IONVMeFamily 2.1.0

com.apple.driver.AppleNANDConfigAccess 1.0.0

com.apple.driver.AppleStockholmControl 1.0.0

com.apple.AGXFirmwareKextG13GRTBuddy 275.6

com.apple.AGXFirmwareKextRTBuddy64 275.6

com.apple.driver.AppleHIDTransportSPI 7400.34

com.apple.driver.AppleHIDTransport 7400.34

com.apple.driver.AppleSPU 1

com.apple.driver.AppleInputDeviceSupport 7400.34

com.apple.driver.AppleHPM 3.4.4

com.apple.driver.AppleSPMIPMU 1.0.1

com.apple.driver.AppleDialogPMU 1.0.1

com.apple.driver.AppleCSEmbeddedAudio 700.46

com.apple.driver.AppleEmbeddedAudio 700.46

com.apple.iokit.AppleARMIISAudio 300.11

com.apple.plugin.IOgPTPPlugin 1200.91

com.apple.driver.ApplePassthroughPPM 3.0

com.apple.driver.ApplePMGR 1

com.apple.driver.AppleARMWatchdogTimer 1

com.apple.driver.AppleH13CameraInterface 8.24.1

com.apple.driver.AppleH11ANEInterface 7.23.0

com.apple.driver.AppleSART 1

com.apple.iokit.IOMobileGraphicsFamily-DCP 343.0.0

com.apple.driver.AppleDCP 1

com.apple.driver.DCPAVFamilyProxy 1

com.apple.driver.AppleFirmwareKit 1

com.apple.iokit.IOGPUFamily 93

com.apple.driver.AppleT8103TypeCPhy 1

com.apple.driver.AppleDisplayCrossbar 1.0.0

com.apple.iokit.IODisplayPortFamily 1.0.0

com.apple.driver.AppleUSBXDCIARM 1.0

com.apple.driver.AppleUSBXDCI 1.0

com.apple.iokit.IOUSBDeviceFamily 2.0.0

com.apple.driver.usb.AppleSynopsysUSBXHCI 1

com.apple.driver.usb.AppleUSBXHCI 1.2

com.apple.driver.AppleTypeCPhy 1

com.apple.driver.AppleEmbeddedUSBHost 1

com.apple.driver.usb.AppleUSBHub 1.2

com.apple.driver.usb.AppleUSBHostCompositeDevice 1.2

com.apple.driver.AppleSPMI 1.0.1

com.apple.driver.AppleThunderboltNHI 7.2.81

com.apple.driver.AppleT8103PCIeC 1

com.apple.iokit.IOThunderboltFamily 9.3.3

com.apple.iokit.IOPortFamily 1.0

com.apple.driver.ApplePIODMA 1

com.apple.driver.AppleT8103PCIe 1

com.apple.driver.AppleMultiFunctionManager 1

com.apple.driver.AppleBluetoothDebugService 1

com.apple.driver.AppleBCMWLANCore 1.0.0

com.apple.iokit.IO80211Family 1200.13.0

com.apple.driver.IOImageLoader 1.0.0

com.apple.driver.AppleOLYHAL 1

com.apple.driver.corecapture 1.0.4

com.apple.driver.AppleEmbeddedPCIE 1

com.apple.driver.AppleMobileDispH13G-DFR 140.0

com.apple.iokit.IOMobileGraphicsFamily 343.0.0

com.apple.driver.AppleM2ScalerCSCDriver 265.0.0

com.apple.driver.AppleMCA2-T8103 800.11

com.apple.driver.AppleEmbeddedAudioLibs 300.1

com.apple.driver.AppleFirmwareUpdateKext 1

com.apple.driver.AppleGPIOICController 1.0.2

com.apple.driver.AppleFireStormErrorHandler 1

com.apple.driver.AppleMobileApNonce 1

com.apple.driver.usb.AppleUSBHostPacketFilter 1.0

com.apple.iokit.IOTimeSyncFamily 1200.91

com.apple.driver.DiskImages 493.0.0

com.apple.iokit.IOGraphicsFamily 597

com.apple.iokit.IOBluetoothFamily 9.0.0

com.apple.driver.AppleSSE 1.0

com.apple.driver.AppleSEPKeyStore 2

com.apple.driver.AppleUSBTDM 556

com.apple.iokit.IOUSBMassStorageDriver 240

com.apple.iokit.IOPCIFamily 2.9

com.apple.iokit.IOSCSIBlockCommandsDevice 492

com.apple.iokit.IOSCSIArchitectureModelFamily 492

com.apple.driver.AppleRSMChannel 1

com.apple.iokit.IORSMFamily 1

com.apple.driver.AppleLockdownMode 1

com.apple.driver.AppleIPAppender 1.0

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleEffaceableStorage 1.0

com.apple.driver.AppleCredentialManager 1.0

com.apple.driver.KernelRelayHost 1

com.apple.iokit.IOUSBHostFamily 1.2

com.apple.driver.AppleUSBHostMergeProperties 1.2

com.apple.driver.usb.AppleUSBCommon 1.0

com.apple.driver.AppleSMC 3.1.9

com.apple.driver.RTBuddy 1.0.0

com.apple.driver.AppleEmbeddedTempSensor 1.0.0

com.apple.driver.AppleARMPMU 1.0

com.apple.iokit.IOAccessoryManager 1.0.0

com.apple.driver.AppleUVDM 1.0.0

com.apple.driver.AppleOnboardSerial 1.0

com.apple.iokit.IOSkywalkFamily 1.0

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.iokit.IONetworkingFamily 3.4

com.apple.iokit.IOSerialFamily 11

com.apple.driver.AppleSEPManager 1.0.1

com.apple.driver.IODARTFamily 1

com.apple.driver.AppleA7IOP 1.0.2

com.apple.driver.IOSlaveProcessor 1

com.apple.driver.AppleBiometricSensor 2

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.AUC 1.0

com.apple.iokit.IOSurface 352.0.3

com.apple.iokit.IOAVFamily 1.0.0

com.apple.iokit.IOHDCPFamily 1.0.0

com.apple.iokit.IOCECFamily 1

com.apple.iokit.IOAudio2Family 1.0

com.apple.driver.AppleIISController 300.1

com.apple.driver.AppleAudioClockLibs 300.1

com.apple.driver.FairPlayIOKit 71.3.0

com.apple.driver.AppleARMPlatform 1.0.2

com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

com.apple.iokit.IOReportFamily 47

com.apple.security.quarantine 4

com.apple.security.sandbox 300.0

com.apple.iokit.IOStorageFamily 2.1

com.apple.kext.AppleMatch 1.0.0d1

com.apple.driver.AppleMobileFileIntegrity 1.0.5

com.apple.iokit.CoreAnalyticsFamily 1

com.apple.security.AppleImage4 5.0.0

com.apple.kext.CoreTrust 1

com.apple.iokit.IOCryptoAcceleratorFamily 1.0.1

com.apple.kec.pthread 1

com.apple.kec.Libm 1

com.apple.kec.Compression 1.0

com.apple.kec.corecrypto 14.0

 

 

 

** Stackshot Succeeded ** Bytes Traced 427193 (Uncompressed 1058096) **

 

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4 Replies
wh2012
VMware Employee
VMware Employee

Just from the error message shows ' TTBR invalid exception on read ', which may be a kernel code issue or a hardware malfunction. Does this issue only happened with Horizon Client ? Have you ever tried other applicaiton?  This will hep to locate this issue.  Thanks.

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sabienbosman
Contributor
Contributor

Thank you for your answer. It is only when using Horizon Client in combination with my computer being linked to a second screen via HDMI. 

0 Kudos
ericwest135
Contributor
Contributor

Is that extra monitor powered by usb through your mac?

0 Kudos
sabienbosman
Contributor
Contributor

That extra monitor is connected with my macbook through a USB-C hub and a HDMI cable, but it is not powered by the Macbook. The screen is plugged into a power outlet on the wall.  

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