Mac Mini (2012) HDMI losing sync (blank screen/snow)

Cheers mate! Nice news indeed! I am on a MDP to DVI cable now (not that I was planning to use the thunderbold port for anything else...)

big s**t now.. even a MDP to DVI cable is not working for me!! I have snow (like an old tv set lost the signal) on screen! for second time for today!!

Really sorry to hear that, Chris. This problem is so infuriating because of its unpredictable, intermittent nature. Could it have something to do with this HDCP factor (which I can't begin to understand) in your case, too? In other words the specs. ofy our monitor?

Is this with an Apple cable or some third party? I ask as a lot of non-Apple can be pretty crappy quality - unshielded, etc.. And that does impact as would a defective Apple MDP if is an Apple cable involved.

http://eshop.macsales.com/imgs/ndesc/Newertech/NWTCBLMDPDVI/NWTCBLMDPDVI_gall2.j pg

Your right mate, its a third party!

I will continue to use the monitor's DVI with the Apple's HDMI-DVI.

On second thought, my problem with "snow" started when I tried to watch a video from BBC iplayer..

I noticed that on this topic there is a reference about "snow" , in my case I had a full screen "snow" like

I was on a old TV set and I lost the signal (ie. no display of the desktop) , is this symptom related to the HD4000 problems , or just an issue with the flash player...?

thx

I will try the official Apple cable (MDP to DVI-D) and I hope this will work.. Anyway on the Amazon I found two cables:

The MB570Z/A and the MB570Z/B, witch one is the correct ? It seems both are the same..

thx

Both should be identical. the /B instead of /A is indication of packaging vs. change in the product itself. If both the same cost, the /B would be of more recent manufacture. Otherwise, as long as trusted suppliers - whichever is lower cost.

I haven't got an Apple cable as such, Chris. What came with my Mac mini was just an adapter, consisting of about 7 cm of quite slim white cable with an HDMI female plug at one end and a male DVI plug at the other. I cannot see a manufacturer's name on it. With my Dell monitor, there came a black cable with HDMI plugs at each end and also ferrite rings at both ends. I am now using that cable and the adapter described above.

I tremble to say it, but I have now not had a crash of any kind for 6 days. But as I said before, six days ago I also wiggled the RAM around a bit in case it had been slightly dislodged, so the absence of crashes could be due to that action and not the cable.

The cable I was using when I was getting the crashes is a rather thinner black cable by StarTech.com with a DisplayPort plug at one end and a Mini DisplayPort plug at the other and no ferrite rings. I obtained it from Amazon UK, but presumably one can get it from StarTech.com. But again, that may not have been the cause of the crashes. They could have been caused by poor seating of the RAM.

Best of luck, Chris — and everyone else.

Yea, I have the same cable, HDMI to DVI-D that came with the mini. Its strange that my problem usually occurs after an uptime of 10hrs (the system goes to sleep mode from time to time). I had a nice chat with the Apple support today, they were trying to convince me that the problem was with my monitor (2x laptops and 2x other Intel PCs work fine with this), thanks to them I just canceled the Applecare package (that I got shortly after purchased my Mac mini), seems to be a total waste of money. I was ready to visit the local Apple store for support, but the only option was to book an appointment for ... next week! Ridiculous…

I hadn't had my mini on continuously for as long as 10 hours until yesterday, when, coincidentally, I went out to a conference and left the mini on by mistake. It was still working normally when I got home. But one swallow doesn't make a summer, as the saying goes.

If yours tends to develop its problem after 10 hours or so, that suggests a rather conventional old-fashioned electronic fault, such as a resistor or electrolytic capacitor, or its equivalent within a chip, overheating. But I go back to the days of separate components (and even, before that, to the valves — tubes in the USA — that preceded transistors), so I am not sure whether the chips in today's integrated circuits can behave like that. Worth considering and talking to Apple about, perhaps?

The issue its not exactly after 10hs, yesterday, yes I noticed a couple of black screens (just a couple of secs each) that happened after a total uptime of 11hrs (as I wrote, the mac is not running all the time, from time to time I put the machine to sleep mode) , two days ago the issue happened on less than 2hrs of uptime..

as of overheat.. The temp is on average 42c (info from SMCFancontrol app)

Oh, I didn't mean exactly after 10 hours. I just meant that components (and that may include the semiconductive junctions within chips) can heat up after a period of continuous running. And also I meant that this would occur if the component (or the junction) is slightly faulty. So it may not be a question of the published range of safe ambient temperatures for the whole machine, but of a slightly dodgy individual electronic component (other than the graphics card that everyone has been moaning about, perhaps, and therefore perhaps more easily replaced).

Help! Nearly three weeks without a problem — and four panics since last night! I have not installed anything that seems a likely culprit; an update for my Epson printer software, that's all, I think.

The panics have happened while, or just after, starting up. I attach the latest crash report. The only thing I can see on it that I recognize is 'CopyPaste Pro', which I have been using for years on my old computer nand on this Mac mini. If anyone can suggest a reason, I should be very grateful.

Interval Since Last Panic Report: 21666 sec

Panics Since Last Report: 1

Anonymous UUID: D2823B11-500D-1F66-A40A-069F34C1ACC3

Tue Sep 24 21:46:05 2013

panic(cpu 2 caller 0xffffff800a8b8655): Kernel trap at 0xffffff800a819233, type 13=general protection, registers:

CR0: 0x0000000080010033, CR2: 0x000000010037f000, CR3: 0x0000000003e86067, CR4: 0x00000000001606e0

RAX: 0xffff008018a31b50, RBX: 0xffffff8018817600, RCX: 0x0000000007000006, RDX: 0x0000000000000007

RSP: 0xffffff8011e4bea0, RBP: 0xffffff8011e4bf00, RSI: 0xffffff8018817604, RDI: 0x0000000000000002

R8: 0x0000000000000002, R9: 0xffffff80187103a8, R10: 0x0000000000000c00, R11: 0x0000000000000206

R12: 0xffffff80186b8700, R13: 0xffffff80187103a8, R14: 0x00007fff5fbfe730, R15: 0x0000000000000000

RFL: 0x0000000000010246, RIP: 0xffffff800a819233, CS: 0x0000000000000008, SS: 0x0000000000000010

Fault CR2: 0x000000010037f000, Error code: 0x0000000000000000, Fault CPU: 0x2

Backtrace (CPU 2), Frame : Return Address

0xffffff8011e4bb40 : 0xffffff800a81d626

0xffffff8011e4bbb0 : 0xffffff800a8b8655

0xffffff8011e4bd80 : 0xffffff800a8ce17d

0xffffff8011e4bda0 : 0xffffff800a819233

0xffffff8011e4bf00 : 0xffffff800a819724

0xffffff8011e4bf70 : 0xffffff800a8a6536

0xffffff8011e4bfb0 : 0xffffff800a8ce9e3

BSD process name corresponding to current thread: CopyPaste Pro

Mac OS version:

12E55

Kernel version:

Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64

Kernel UUID: 896CB1E3-AB79-3DF1-B595-549DFFDF3D36

Kernel slide: 0x000000000a600000

Kernel text base: 0xffffff800a800000

System model name: Macmini6,1 (Mac-031AEE4D24BFF0B1)

System uptime in nanoseconds: 386609919657

last loaded kext at 262658016293: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7f8c464000, size 65536)

last unloaded kext at 323686287324: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7f8c464000, size 57344)

loaded kexts:

com.apple.driver.AudioAUUC 1.60

com.apple.driver.X86PlatformShim 1.0.0

com.apple.driver.AGPM 100.12.87

com.apple.driver.ApplePlatformEnabler 2.0.6d1

com.apple.driver.AppleHDA 2.3.7fc4

com.apple.driver.AppleMikeyHIDDriver 122

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.iokit.IOBluetoothSerialManager 4.1.4f2

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.ApplePolicyControl 3.4.5

com.apple.driver.AppleUpstreamUserClient 3.5.10

com.apple.driver.AppleMCCSControl 1.1.11

com.apple.driver.AppleUSBOpticalMouse 5.2.5

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleMikeyDriver 2.3.7fc4

com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport 4.1.4f2

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.driver.AppleLPC 1.6.0

com.apple.driver.AppleIntelHD4000Graphics 8.1.2

com.apple.driver.AppleIntelFramebufferCapri 8.1.2

com.apple.iokit.SCSITaskUserClient 3.5.5

com.apple.driver.AppleIRController 320.15

com.apple.driver.Oxford_Semi 3.1.7

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 34

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.3.1

com.apple.driver.AppleUSBHub 5.5.5

com.apple.driver.AirPort.Brcm4331 615.20.17

com.apple.driver.AppleUSBXHCI 5.6.0

com.apple.iokit.AppleBCM5701Ethernet 3.6.1b4

com.apple.driver.AppleSDXC 1.4.2

com.apple.driver.AppleAHCIPort 2.5.2

com.apple.driver.AppleFWOHCI 4.9.6

com.apple.driver.AppleUSBEHCI 5.5.0

com.apple.driver.AppleEFINVRAM 1.7

com.apple.driver.AppleRTC 1.5

com.apple.driver.AppleACPIButtons 1.7

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 1.9

com.apple.driver.AppleACPIEC 1.7

com.apple.driver.AppleAPIC 1.6

com.apple.driver.AppleIntelCPUPowerManagementClient 196.0.0

com.apple.nke.applicationfirewall 4.0.39

com.apple.security.quarantine 2.1

com.apple.driver.AppleIntelCPUPowerManagement 196.0.0

com.apple.driver.DspFuncLib 2.3.7fc4

com.apple.iokit.IOAudioFamily 1.8.9fc11

com.apple.kext.OSvKernDSPLib 1.6

com.apple.iokit.IOSurface 86.0.4

com.apple.driver.AppleHDAController 2.3.7fc4

com.apple.iokit.IOHDAFamily 2.3.7fc4

com.apple.iokit.IOSerialFamily 10.0.6

com.apple.iokit.IOBluetoothFamily 4.1.4f2

com.apple.driver.X86PlatformPlugin 1.0.0

com.apple.driver.AppleSMC 3.1.4d2

com.apple.kext.triggers 1.0

com.apple.driver.AppleSMBusController 1.0.11d0

com.apple.driver.AppleGraphicsControl 3.4.5

com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.1.4f2

com.apple.driver.AppleSMBusPCI 1.0.11d0

com.apple.driver.IOPlatformPluginFamily 5.3.0d51

com.apple.iokit.IOFireWireIP 2.2.5

com.apple.iokit.IOAcceleratorFamily 74.5.1

com.apple.iokit.IONDRVSupport 2.3.7

com.apple.iokit.IOGraphicsFamily 2.3.7

com.apple.driver.AppleUSBHIDKeyboard 170.2

com.apple.driver.AppleHIDKeyboard 170.2

com.apple.driver.AppleUSBMergeNub 5.5.5

com.apple.driver.AppleThunderboltDPInAdapter 1.8.9

com.apple.driver.AppleThunderboltDPAdapterFamily 1.8.9

com.apple.driver.AppleThunderboltPCIDownAdapter 1.2.6

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.5.5

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.iokit.IOUSBHIDDriver 5.2.5

com.apple.driver.AppleUSBComposite 5.2.5

com.apple.iokit.IOFireWireSerialBusProtocolTransport 2.1.1

com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.5

com.apple.iokit.IOFireWireSBP2 4.2.2

com.apple.iokit.IOUSBUserClient 5.5.5

com.apple.driver.AppleThunderboltNHI 1.7.8

com.apple.iokit.IOThunderboltFamily 2.4.0

com.apple.iokit.IO80211Family 530.4

com.apple.iokit.IOEthernetAVBController 1.0.2b1

com.apple.iokit.IONetworkingFamily 3.0

com.apple.iokit.IOAHCIFamily 2.3.1

com.apple.iokit.IOFireWireFamily 4.5.5

com.apple.iokit.IOUSBFamily 5.6.0

com.apple.driver.AppleEFIRuntime 1.7

com.apple.iokit.IOHIDFamily 1.8.1

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 220.3

com.apple.kext.AppleMatch 1.0.0d1

com.apple.security.TMSafetyNet 7

com.apple.driver.DiskImages 345

com.apple.iokit.IOStorageFamily 1.8

com.apple.driver.AppleKeyStore 28.21

com.apple.driver.AppleACPIPlatform 1.7

com.apple.iokit.IOPCIFamily 2.7.3

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.corecrypto 1.0

Model: Macmini6,1, BootROM MM61.0106.B03, 2 processors, Intel Core i5, 2.5 GHz, 4 GB, SMC 2.7f0

Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In, 512 MB

Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1600 MHz, 0x802C, 0x384A544632353636344A485A2D3147364D32

Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1600 MHz, 0x802C, 0x384A544632353636344A485A2D3147364D32

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x10E), Broadcom BCM43xx 1.0 (5.106.98.100.17)

Bluetooth: Version 4.1.4f2 12041, 2 service, 11 devices, 1 incoming serial ports

Network Service: Ethernet, Ethernet, en0

Serial ATA Device: APPLE HDD HTS545050A7E362, 500.11 GB

USB Device: hub_device, 0x8087 (Intel Corporation), 0x0024, 0x1d100000 / 2

USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0x1d130000 / 6

USB Device: Apple Optical USB Mouse, apple_vendor_id, 0x0307, 0x1d133000 / 11

USB Device: Apple Keyboard, apple_vendor_id, 0x0221, 0x1d132000 / 10

USB Device: hub_device, 0x0424 (SMSC), 0x2512, 0x1d180000 / 3

USB Device: BRCM20702 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x1d181000 / 5

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x828a, 0x1d181300 / 9

USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x1d182000 / 4

USB Device: hub_device, 0x8087 (Intel Corporation), 0x0024, 0x1a100000 / 2

FireWire Device: d2 DVDRW FW/USB, LaCie, 400mbit_speed

Please could someone tell me whether the notorious 'black screen' problem attributed to the Intel graphics card or to display cables shows up in subsequent internal reports as a 'panic' or not? I have already asked here at least twice.

I have to know. After 18 trouble-free days, my Mac mini is suddenly now suffering a panic once or twice a day. If these panics are the 'black screen' events, I shall know that there is nothing I can do until the 2013 model of the mini appears. If they are due to something else, I can ask Apple to have a look at my computer.

Here is the report on the latest panic:

Interval Since Last Panic Report: 11329 sec

Panics Since Last Report: 1

Anonymous UUID: D2823B11-500D-1F66-A40A-069F34C1ACC3

Wed Sep 25 17:21:40 2013

panic(cpu 1 caller 0xffffff802b0b8655): Kernel trap at 0xffffff802b019233, type 13=general protection, registers:

CR0: 0x000000008001003b, CR2: 0x0000000107cb4868, CR3: 0x0000000063e62055, CR4: 0x00000000001606e0

RAX: 0xffff00803af5c340, RBX: 0xffffff803a09b268, RCX: 0x0000000007000006, RDX: 0xffffff802b0130c0

RSP: 0xffffff80a4063f30, RBP: 0xffffff80a4063f90, RSI: 0xffffff803a09b26c, RDI: 0x0000000000000002

R8: 0xffffff80a403d078, R9: 0x000000000098868c, R10: 0xffffff80a4063e30, R11: 0x0000000000000201

R12: 0xffffff8039cc5700, R13: 0xffffff80394728b8, R14: 0x00000000bfffdc80, R15: 0x0000000000000000

RFL: 0x0000000000010246, RIP: 0xffffff802b019233, CS: 0x0000000000000008, SS: 0x0000000000000010

Fault CR2: 0x0000000107cb4868, Error code: 0x0000000000000000, Fault CPU: 0x1

Backtrace (CPU 1), Frame : Return Address

0xffffff80a4063bd0 : 0xffffff802b01d626

0xffffff80a4063c40 : 0xffffff802b0b8655

0xffffff80a4063e10 : 0xffffff802b0ce17d

0xffffff80a4063e30 : 0xffffff802b019233

0xffffff80a4063f90 : 0xffffff802b019551

0xffffff80a4063fb0 : 0xffffff802b0b3137

BSD process name corresponding to current thread: rapportd

Mac OS version:

12E55

Kernel version:

Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64

Kernel UUID: 896CB1E3-AB79-3DF1-B595-549DFFDF3D36

Kernel slide: 0x000000002ae00000

Kernel text base: 0xffffff802b000000

System model name: Macmini6,1 (Mac-031AEE4D24BFF0B1)

System uptime in nanoseconds: 1046918289861

last loaded kext at 823365914045: com.apple.filesystems.smbfs 1.8.4 (addr 0xffffff7facc72000, size 229376)

last unloaded kext at 321021089319: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7facc64000, size 57344)

loaded kexts:

com.apple.filesystems.smbfs 1.8.4

com.apple.driver.AudioAUUC 1.60

com.apple.driver.AGPM 100.12.87

com.apple.driver.X86PlatformShim 1.0.0

com.apple.driver.ApplePlatformEnabler 2.0.6d1

com.apple.driver.AppleMikeyHIDDriver 122

com.apple.driver.AppleHDA 2.3.7fc4

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.iokit.IOBluetoothSerialManager 4.1.4f2

com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport 4.1.4f2

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.ApplePolicyControl 3.4.5

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleLPC 1.6.0

com.apple.driver.AppleUSBOpticalMouse 5.2.5

com.apple.driver.AppleUpstreamUserClient 3.5.10

com.apple.driver.AppleMCCSControl 1.1.11

com.apple.driver.AppleMikeyDriver 2.3.7fc4

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.driver.AppleIntelHD4000Graphics 8.1.2

com.apple.driver.AppleIntelFramebufferCapri 8.1.2

com.apple.driver.AppleIRController 320.15

com.apple.iokit.SCSITaskUserClient 3.5.5

com.apple.driver.Oxford_Semi 3.1.7

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 34

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.3.1

com.apple.driver.AppleUSBHub 5.5.5

com.apple.driver.AppleSDXC 1.4.2

com.apple.driver.AirPort.Brcm4331 615.20.17

com.apple.iokit.AppleBCM5701Ethernet 3.6.1b4

com.apple.driver.AppleFWOHCI 4.9.6

com.apple.driver.AppleUSBEHCI 5.5.0

com.apple.driver.AppleAHCIPort 2.5.2

com.apple.driver.AppleUSBXHCI 5.6.0

com.apple.driver.AppleEFINVRAM 1.7

com.apple.driver.AppleRTC 1.5

com.apple.driver.AppleACPIButtons 1.7

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 1.9

com.apple.driver.AppleACPIEC 1.7

com.apple.driver.AppleAPIC 1.6

com.apple.driver.AppleIntelCPUPowerManagementClient 196.0.0

com.apple.nke.applicationfirewall 4.0.39

com.apple.security.quarantine 2.1

com.apple.driver.AppleIntelCPUPowerManagement 196.0.0

com.apple.driver.DspFuncLib 2.3.7fc4

com.apple.iokit.IOAudioFamily 1.8.9fc11

com.apple.kext.OSvKernDSPLib 1.6

com.apple.iokit.IOSurface 86.0.4

com.apple.iokit.IOSerialFamily 10.0.6

com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.1.4f2

com.apple.iokit.IOBluetoothFamily 4.1.4f2

com.apple.driver.AppleGraphicsControl 3.4.5

com.apple.kext.triggers 1.0

com.apple.driver.X86PlatformPlugin 1.0.0

com.apple.driver.AppleSMC 3.1.4d2

com.apple.driver.AppleHDAController 2.3.7fc4

com.apple.iokit.IOHDAFamily 2.3.7fc4

com.apple.iokit.IOFireWireIP 2.2.5

com.apple.driver.AppleSMBusController 1.0.11d0

com.apple.driver.IOPlatformPluginFamily 5.3.0d51

com.apple.driver.AppleSMBusPCI 1.0.11d0

com.apple.iokit.IOAcceleratorFamily 74.5.1

com.apple.iokit.IONDRVSupport 2.3.7

com.apple.iokit.IOGraphicsFamily 2.3.7

com.apple.driver.AppleUSBHIDKeyboard 170.2

com.apple.driver.AppleHIDKeyboard 170.2

com.apple.driver.AppleUSBMergeNub 5.5.5

com.apple.iokit.IOUSBHIDDriver 5.2.5

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.5.5

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.driver.AppleThunderboltDPInAdapter 1.8.9

com.apple.driver.AppleThunderboltDPAdapterFamily 1.8.9

com.apple.driver.AppleThunderboltPCIDownAdapter 1.2.6

com.apple.driver.AppleUSBComposite 5.2.5

com.apple.iokit.IOFireWireSerialBusProtocolTransport 2.1.1

com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.5

com.apple.iokit.IOFireWireSBP2 4.2.2

com.apple.driver.AppleThunderboltNHI 1.7.8

com.apple.iokit.IOThunderboltFamily 2.4.0

com.apple.iokit.IOUSBUserClient 5.5.5

com.apple.iokit.IO80211Family 530.4

com.apple.iokit.IOEthernetAVBController 1.0.2b1

com.apple.iokit.IONetworkingFamily 3.0

com.apple.iokit.IOFireWireFamily 4.5.5

com.apple.iokit.IOAHCIFamily 2.3.1

com.apple.iokit.IOUSBFamily 5.6.0

com.apple.driver.AppleEFIRuntime 1.7

com.apple.iokit.IOHIDFamily 1.8.1

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 220.3

com.apple.kext.AppleMatch 1.0.0d1

com.apple.security.TMSafetyNet 7

com.apple.driver.DiskImages 345

com.apple.iokit.IOStorageFamily 1.8

com.apple.driver.AppleKeyStore 28.21

com.apple.driver.AppleACPIPlatform 1.7

com.apple.iokit.IOPCIFamily 2.7.3

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.corecrypto 1.0

Model: Macmini6,1, BootROM MM61.0106.B03, 2 processors, Intel Core i5, 2.5 GHz, 4 GB, SMC 2.7f0

Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In, 512 MB

Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1600 MHz, 0x802C, 0x384A544632353636344A485A2D3147364D32

Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1600 MHz, 0x802C, 0x384A544632353636344A485A2D3147364D32

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x10E), Broadcom BCM43xx 1.0 (5.106.98.100.17)

Bluetooth: Version 4.1.4f2 12041, 2 service, 11 devices, 1 incoming serial ports

Network Service: Ethernet, Ethernet, en0

Serial ATA Device: APPLE HDD HTS545050A7E362, 500.11 GB

USB Device: hub_device, 0x8087 (Intel Corporation), 0x0024, 0x1d100000 / 2

USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0x1d130000 / 6

USB Device: Apple Optical USB Mouse, apple_vendor_id, 0x0307, 0x1d133000 / 11

USB Device: Apple Keyboard, apple_vendor_id, 0x0221, 0x1d132000 / 10

USB Device: hub_device, 0x0424 (SMSC), 0x2512, 0x1d180000 / 3

USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x1d182000 / 5

USB Device: BRCM20702 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x1d181000 / 4

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x828a, 0x1d181300 / 9

USB Device: hub_device, 0x8087 (Intel Corporation), 0x0024, 0x1a100000 / 2

FireWire Device: d2 DVDRW FW/USB, LaCie, 400mbit_speed

I bet your kernel panics has no relation with the black screen/loss of signal issues.