My external display suddenly stopped working...help?!?

I have a 2009 MBP that I have been using in clamshell mode for the past 1.5 yrs. I've had it hooked up to a LG Flatron M2362D 23" HD monitor for about 6 months or so. I have never even had a hiccup until now. However, about 30 mins ago, my display decided to stop working. I have it hooked up with the mini-DVI. I tried switching to my 19" Dell monitor (which I know works) to check and see if it was just my display, however the problem persists. Is anyone else having this problem? Does anyone know how to fix it?

I wish I could help, but I'm here because I just began having the same problem. Everything worked great until a few days ago. The external monitor works great with my old Dell laptop, just not with my Macbook Pro. This is really frustrating.

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My TFT display suddenly stopped working HELP! G4 MDD DP1.25

Hi all...could use some pointers here. My formac 17" TFT display has suddenly stopped working on my MDD G4 DP1.25 - I use the standard graphics card. Turned the mac on today, and the display just wont turn on, though the silver light on the display flashes (as in standby) which means it's getting power. I also have a CRT display attached to the same card, and it's working as normal which I presume means that the graphics card is not dead. I tried booting from a different startup volume, same result. Any ideas please?? thanks!

no it doesn't support multiple inputs, it just has an on/off switch and is connected to the radeon 9000 pro graphics card (as shipped with the G4) via the ADC connector. Like I said, the VGA monitor that's hooked up to the same card works ok. And....weirder still, the Formac monitor has USB ports on the back, and although the monitor will no longer work (just the pulsing light on the front suggesting it's in stanbdy mode) the USB devices will still work when connected to the monitor - so this means either the card is half working or the monitor is half working!!! But I need to know which before I spend any $$$. Anyone got any ideas please? thanks!

Formac TFT display suddenly not working help!!! G4 MDD DP1.25

Hi all...could use some pointers here. My formac 17" TFT display has suddenly stopped working on my MDD G4 DP1.25 - I use the standard graphics card. Turned the mac on today, and the display just wont turn on, though the silver light on the display flashes (as in standby) which means it's getting power. I also have a CRT display attached to the same card, and it's working as normal which I presume means that the graphics card is not dead. I tried booting from a different startup volume, same result. Any ideas please?? thanks!

no it doesn't support multiple inputs, it just has an on/off switch and is connected to the radeon 9000 pro graphics card (as shipped with the G4) via the ADC connector. Like I said, the VGA monitor that's hooked up to the same card works ok. And....weirder still, the Formac monitor has USB ports on the back, and although the monitor will no longer work (just the pulsing light on the front suggesting it's in stanbdy mode) the USB devices will still work when connected to the monitor - so this means either the card is half working or the monitor is half working!!! But I need to know which before I spend any $$$. Anyone got any ideas please? thanks!

Two keys on external keyboard suddenly stop working, cannot log in

I have an iMac with Snow Leopard, USB keyboard (not wireless). From one moment to the next the "a" and "s" keys suddenly stopped working. I checked in the Universal Access and Speech panes as others with similar problems were advised and this was not the problem. I tried restarting the computer to see if that would help but it did not, and now I can't log in because these letters are in my password. HELP!!!!

Try another USB keyboard. (most any brand will work)
Personally I use Logitech MK120 - USB Keyboard & Mouse Combo's with all my Mac's.

External speakers suddenly stop working

My 13" aluminum MacBook's internal speakers are working fine. External speakers and headphones were also working fine until yesterday. Now, external speakers do not work with my MacBook at all, and with headphones I get a very muddled, echoy sound. This happened overnight - my laptop was just sitting, not plugged in, on my desk. I've tried restarting and resetting the NVRAM - no help.
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Please help!

>I had a quick look this morning and sure enough, a YouTube clip was playing, but no sound.
This happened to me too using an Tecra A11 unit.
The Youtube clip had no sound but if I plugged and re-plugged the headphone jack, the sound appeared again.
I thought this was a problem with headphone jack but I wanted to check if this issue could be solved by driver reinstallation.
Firstly I uninstalled the Realtek sound driver from the system. Then I entered the device manager and deleted the High definition Audio Controller from the System Devices area.
In Audio , video and games controller I deleted the Intel display audio entry.
Finally I rebooted the system.
After new reboot the Windows recognized the deleted devices. I checked the playback tab in control panel -> sound and found new device Headphones which was not visible before.
Then I started Youtube and checked the sound. It was available. Then I installed the newest version of Realtek HD audio driver and rebooted the unit.
The sound was still there
So hopefully it was just and driver issue

My location service suddenly stopped working, Help !!!

Hi, suddenly my location service of my ipad3 stopped working. It was working good but now the location service in settings appears on a grey color and I can't manage the apps. Please help!

Try the following:
- A reset. Nothing is lost
Reset iPad: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Reset all settings
Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
- Restore from backup
- Restore to factory settings/new iPad.
If you still have the problem that indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order

Camera suddenly stopped working HELP

I have been editing with a Canon ZR-80 on my G-4 laptop. For no reason, that I can determine, the set-up stopped working today. I hooked everything up and when I opened FCP it said it was not seeing a device. I made sure the camera was in VCR mode, cable secure, on etc and everything was fine. I continued and tried to capture anyway. When I pressed play the camera started playing the video, but you couldn't see it on the log and capture screen. It just says, Device not available.
Please help!

update quicktime today?
if so ...
To do a full quicktime reinstall.
Go to /library/receipts and delete any files that say Quicktime followed by a number e.g. Quicktime703.pkg
Go to the Apple quicktime site and download the appropriate version of Quicktime to your hard drive.
Run the Quicktime installer.
Repair Disk Permissions for your System Disk (Disk Utility > Select the system disk > Repair Disk Permissions)
Reboot
Good luck.
x

AEBS suddenly stopped working -- help?

I've had this AEBS for just over a year, and it's worked just fine up through last night. This morning, though, it stopped connecting, though the "fan" in my menu bar showed four bars. I thought it was a problem with my DSL, but the telephone repairman gave the DSL a clean slate of health and showed me that connecting directly to the DSL router with Ethernet was working fine. He did repair the problem I was having with my phones, though.
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So now my MacBook is connected with a wire, but that takes away the advantage of having a laptop. Can anyone point me in the right direction to fix this problem? Thanks!

The same thing happens to me when I do a security update. Check out this thread:
http://discussions.apple.com/thread.jspa?threadID=225328&threadrate=1&messageid= 1125560#1125560
It might be your keychain. When I logoff or shutdown, I'll see a popup message: Confirm Application Change
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T-Book Mac OS X (10.3.9)

External monitor suddenly stopped working at 2440x1440 on OS Lion 10.7.3

Hi,
I have a 27" iMac and I'm using Samsung SyncMaster SA850 as a second monitor (connected via a displayPort cable with a mini DisplayPort adapter).
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When I connect the monitor to an iMac with 10.7.2 everything works fine. And another iMac with 10.7.3 has the same problem as me.
Any ideas what could be wrong, please?
Thanks!
Tomas

It's very temperamental i find. I have just moved house and when i reconnected everyting i couldn't get the monitor to work properly. I played around for a while and eventually changed my input from DVI1 to DVI2, then played with the input button at the bototm of the screen (the one just on left of the power button) and somehow it just seemed to click into place... Frustrating i realise, but now that it's up and running it looks great and, I daresay, looks much better than the 27" thunderbold display in my opinion... primarily because the non-reflective surface is great, but also because it is so easily height adjustable, a feature which unfortunately is non existent on the mac monitor.
good luck anyway...

I dowloaded firefox, but it isn't letting me connect to the internet.internet explorer is the only one that lets me get on the internet.i've had firefox on my computer before but it all of a sudden stopped working.help?

I installed Firefox two weeks ago, and have not had any problems. Now, as of 9:00pm, I am not able to connect to the internet. When I try to troubleshoot it, it tells me theres an incompatible application. I'm not sure what this means. I'm not good with computers, so help please?! I've uninstalled it twice, and restarted my computer twice, and re installed Firefox. Still not working.

[https://support.mozilla.org/en-US/kb/How%20to%20clear%20the%20cache#w_clear-the-cache Clear your browser cache].
If needed, delete the site's cookies. <br />
Right-click the page, choose View Page Info > Security > "View Cookies"

My flashplayer has suddenly stopped working, help!

Hey guys, I am having the same problem with my Flash player! 2 days ago, I was playing Candy crush on FB and everything was fine! Last night I logged in and tried to play and it said I needed to upgrade my Flash Player! I looked in my control panel (add/remove programs) and Adobe Flash player 12 active X is listed and well as the plugin and they are both enabled in IE and FireFox! Went to Adobe.com to try to re-install and as I click on Install now, it just takes me to the Adobe.com homepage! I am running Windows XP. I have, of course, noticed I can not watch alot of my videos, etc. I did the Adobe Flash player CHECK and it says that it is not installed at all.... I of course, did nothing to the computer, ie.. install new programs or delete or anything of the sort, it is just so weird, it just stopped running all together! Help Please!!!

http://forums.adobe.com/message/4041846

Internal Microphone suddenly stopped working, help please.

That is my problem. I have updated my driver, restored my computer to a time where my mic worked. It was working earlier today, then when I restarted my laptop, I had the legendary Toshiba startup issue. Once I got that figured out and got back onto my computer, I got bluescreened. Eventually I fixed my computer, with this last remaining issue. I've never had issues with my internal microphone.
It's not muted, it's enabled. How can I plug it in when it's an internal microphone? I'm very frustrated. Someone help me. I've been searching for a way to fix it for two hours and I haven't come up with a single solution that's solved the problem.
Satellite L755-S5216
Attachments:
mic.png ‏34 KB
mic2.png ‏32 KB

First check System Preferences/Sound - check all the settings to make sure mute is not selected.
Repair permissions & restart.
Troubleshooting issues with no audio from built-in speakers on Macs
Open up GarageBand if installed then, open a program (optional).
Quit out of the GarageBand app.

HP Pavilion external monitor has stopped working with my Macbook Pro (Mid 2012) with OSX 10.8.3

HP Pavilion external monitor has stopped working with my Macbook Pro (Mid 2012) with OSX 10.8.3. When I purchased the monitor a few weeks ago it worked perfectly when computer was in clamshell mode or with lid open. Now external display has stopped working. When I turn on display it scans for signal but does not find it and then immediately goes into sleep mode. I am using a DVI connection with the adapter for the mini display plug. REALLY FRUSTRATING. Any help would be extremely appreciated.

Hi lancekatigbak,
If you're having issues with the display out on your MacBook Pro, you may want to take a look at the troubleshooting steps in the following article:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
Cheers,
- Brenden

Hi, my ipad mini has suddenly stopped working and I cannot turn it off or connect it to the computer, can anyone help me on this??

Hi, my ipad mini has suddenly stopped working and I cannot turn it off or connect it to the computer, can anyone help me on this??

Try this - Reset the iPad by holding down on the Sleep and Home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. (This is equivalent to rebooting your computer.) No data/files will be erased. http://support.apple.com/kb/ht1430
Frozen or unresponsive iPad
Resolve these most common issues:
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    •    Touch screen not responding
    •    Application unexpectedly closes or freezes
http://www.apple.com/support/ipad/assistant/ipad/
iPhone, iPad, iPod Touch: Troubleshooting Touchscreen Response
http://support.apple.com/kb/ts1827
iPad Frozen, not responding, how to fix
http://appletoolbox.com/2012/07/ipad-frozen-not-responding-how-to-fix/
iPad Frozen? How to Force Quit an App, Reset or Restart Your iPad
http://ipadacademy.com/2010/11/ipad-frozen-how-to-force-quit-an-app-reset-or-res tart-your-ipad
Black or Blank Screen on iPad or iPhone
http://appletoolbox.com/2012/10/black-or-blank-screen-on-ipad-or-iphone/
What to Do When Your iPad Won't Turn On
http://ipad.about.com/od/iPad_Troubleshooting/ss/What-To-Do-When-Your-Ipad-Wo-No t-Turn-On.htm
iOS: Not responding or does not turn on
http://support.apple.com/kb/TS3281
iPad: Basic troubleshooting
http://support.apple.com/kb/TS3274
 Cheers, Tom

IMAC suddenly stops working Mouse,keyboard, wifi all stops responding. PLEASE HELP

iMAC suddenly stops working,display is on but key board and mouse does not respond.I changed keyboard with usb also but still same.even wifi stops working also.PLEASE HELP before there was some kernel panic errors , i updated every thing, installed an original osx mountain Lion. taken to Apple service center. They found nothing wrong with hard ware. But i am having still the same problems. It just stops responding to keyboard, mouse even wifi goes off some time. I thought it may be keyboard mouse problem so i changed them to normal usb keyboard and mouse but still the same. PLEASE PLEAE HELP. -------- LAST ERROR REPORT IS BELOW Interval Since Last Panic Report: 687085 sec Panics Since Last Report: 2 Anonymous UUID: 48C67BCC-4ADB-0131-8FCC-DBD9C01FBB0C Fri Jul 19 17:23:01 2013 panic(cpu 0 caller 0xffffff80096b8655): Kernel trap at 0xffffff7f8a53f351, type 14=page fault, registers: CR0: 0x000000008001003b, CR2: 0x0000000000000060, CR3: 0x000000000bf36000, CR4: 0x0000000000000660 RAX: 0x0000000000000000, RBX: 0x0000000000000000, RCX: 0x0000000000000018, RDX: 0x0000000000000004 RSP: 0xffffff8089c4ba60, RBP: 0xffffff8089c4ba80, RSI: 0x0000000000000060, RDI: 0x00000000ffffff8f R8: 0x00000000000000ff, R9: 0x0000000000000019, R10: 0xffffff8074831004, R11: 0x0000000000000008 R12: 0x0000000000000000, R13: 0xffffff807482e0ec, R14: 0x00000000ffffffff, R15: 0x0000000000000000 RFL: 0x0000000000010297, RIP: 0xffffff7f8a53f351, CS: 0x0000000000000008, SS: 0x0000000000000010 Fault CR2: 0x0000000000000060, Error code: 0x0000000000000000, Fault CPU: 0x0 Backtrace (CPU 0), Frame : Return Address 0xffffff8089c4b700 : 0xffffff800961d626 0xffffff8089c4b770 : 0xffffff80096b8655 0xffffff8089c4b940 : 0xffffff80096ce17d 0xffffff8089c4b960 : 0xffffff7f8a53f351 0xffffff8089c4ba80 : 0xffffff7f8a525ff5 0xffffff8089c4bac0 : 0xffffff7f8a53a352 0xffffff8089c4bb50 : 0xffffff7f8a50da56 0xffffff8089c4bbb0 : 0xffffff7f8a4e5c36 0xffffff8089c4bbf0 : 0xffffff7f8a4e71b4 0xffffff8089c4bc20 : 0xffffff7f8a547d3c 0xffffff8089c4bc50 : 0xffffff7f8a4fad5b 0xffffff8089c4be00 : 0xffffff7f8a4f8a9e 0xffffff8089c4be40 : 0xffffff7f8a4fee0e 0xffffff8089c4be80 : 0xffffff7f8a5454df 0xffffff8089c4beb0 : 0xffffff7f8a58c82e 0xffffff8089c4bf00 : 0xffffff8009a4b1ab 0xffffff8089c4bf60 : 0xffffff800963e25e 0xffffff8089c4bfb0 : 0xffffff80096b3137 Kernel Extensions in backtrace: com.apple.driver.AirPort.Atheros40(600.72.2)[EBF8D6E8-59C6-3C1C-9549-32DDA193B1 D2]@0xffffff7f8a4ad000->0xffffff7f8a5f5fff dependency: com.apple.iokit.IOPCIFamily(2.7.3)[1D668879-BEF8-3C58-ABFE-FAC6B3E9A292]@0xffff ff7f89c83000 dependency: com.apple.iokit.IO80211Family(530.4)[E86BEE31-8EE0-34BE-A53F-2571D85CC628]@0xff ffff7f8a43e000 dependency: com.apple.iokit.IONetworkingFamily(3.0)[F02560D1-ADE6-3AD9-8D05-43CB2B7C8B87]@0 xffffff7f89ddc000 BSD process name corresponding to current thread: kernel_task 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: 0x0000000009400000 Kernel text base: 0xffffff8009600000 System model name: iMac10,1 (Mac-F2268DC8) System uptime in nanoseconds: 397672779228 last loaded kext at 256566570174: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7f8b624000, size 65536) last unloaded kext at 363393284081: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7f8b624000, size 57344) loaded kexts: com.apple.filesystems.smbfs 1.8.4 com.apple.driver.AudioAUUC 1.60 com.apple.driver.AppleHDA 2.3.7fc4 com.apple.driver.AppleMikeyHIDDriver 122 com.apple.driver.AGPM 100.12.87 com.apple.driver.AppleHWSensor 1.9.5d0 com.apple.driver.AppleUpstreamUserClient 3.5.10 com.apple.kext.AMDFramebuffer 8.1.2 com.apple.driver.AppleMikeyDriver 2.3.7fc4 com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0 com.apple.driver.AppleLPC 1.6.0 com.apple.driver.AppleBacklight 170.2.5 com.apple.driver.AppleMCCSControl 1.1.11 com.apple.ATIRadeonX2000 8.1.2 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.iokit.BroadcomBluetoothHCIControllerUSBTransport 4.1.4f2 com.apple.filesystems.autofs 3.0 com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1 com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1 com.apple.BootCache 34 com.apple.driver.AppleIRController 320.15 com.apple.iokit.SCSITaskUserClient 3.5.5 com.apple.driver.AppleUSBCardReader 3.1.7 com.apple.driver.XsanFilter 404 com.apple.iokit.IOAHCIBlockStorage 2.3.1 com.apple.driver.AppleUSBHub 5.5.5 com.apple.driver.AppleFWOHCI 4.9.6 com.apple.driver.AirPort.Atheros40 600.72.2 com.apple.driver.AppleRTC 1.5 com.apple.driver.AppleAHCIPort 2.5.2 com.apple.nvenet 2.0.19 com.apple.driver.AppleUSBEHCI 5.5.0 com.apple.driver.AppleUSBOHCI 5.2.5 com.apple.driver.AppleEFINVRAM 1.7 com.apple.driver.AppleHPET 1.8 com.apple.driver.AppleACPIButtons 1.7 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.driver.IOPlatformPluginLegacy 1.0.0 com.apple.driver.AppleSMBusPCI 1.0.11d0 com.apple.driver.IOPlatformPluginFamily 5.3.0d51 com.apple.driver.AppleBacklightExpert 1.0.4 com.apple.driver.AppleSMBusController 1.0.11d0 com.apple.kext.AMD4600Controller 8.1.2 com.apple.kext.AMDSupport 8.1.2 com.apple.iokit.IOSurface 86.0.4 com.apple.iokit.IOSerialFamily 10.0.6 com.apple.iokit.IOBluetoothFamily 4.1.4f2 com.apple.driver.AppleGraphicsControl 3.4.5 com.apple.iokit.IONDRVSupport 2.3.7 com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.1.4f2 com.apple.kext.triggers 1.0 com.apple.iokit.IOFireWireIP 2.2.5 com.apple.driver.AppleSMC 3.1.4d2 com.apple.driver.AppleHDAController 2.3.7fc4 com.apple.iokit.IOGraphicsFamily 2.3.7 com.apple.iokit.IOHDAFamily 2.3.7fc4 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.iokit.IOSCSIBlockCommandsDevice 3.5.5 com.apple.iokit.IOUSBMassStorageClass 3.5.1 com.apple.driver.AppleUSBMergeNub 5.5.5 com.apple.driver.AppleUSBComposite 5.2.5 com.apple.iokit.IOAHCISerialATAPI 2.5.1 com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.5 com.apple.iokit.IOUSBUserClient 5.5.5 com.apple.iokit.IOFireWireFamily 4.5.5 com.apple.iokit.IO80211Family 530.4 com.apple.iokit.IOAHCIFamily 2.3.1 com.apple.iokit.IONetworkingFamily 3.0 com.apple.iokit.IOUSBFamily 5.6.0 com.apple.driver.NVSMU 2.2.9 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: iMac10,1, BootROM IM101.00CC.B00, 2 processors, Intel Core 2 Duo, 3.06 GHz, 4 GB, SMC 1.53f13 Graphics: ATI Radeon HD 4670, ATI Radeon HD 4670, PCIe, 256 MB Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x802C, 0x31364A53463235363634485A2D3147314631 Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x802C, 0x31364A53463235363634485A2D3147314631 AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.72.0-P2P Bluetooth: Version 4.1.4f2 12041, 2 service, 18 devices, 1 incoming serial ports Network Service: Ethernet, Ethernet, en0 Network Service: AirPort, AirPort, en1 Serial ATA Device: Hitachi HDE721010SLA330, 1 TB Serial ATA Device: HL-DT-ST DVDRW GA11N USB Device: Built-in iSight, apple_vendor_id, 0x8502, 0x24400000 / 2 USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0x26500000 / 2 USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x04500000 / 4 USB Device: USB Keyboard, 0x04f2 (Chicony Electronics Co., Ltd.), 0x0111, 0x04300000 / 3 USB Device: Microsoft Notebook Optical Mouse with Tilt Wheel, 0x045e (Microsoft Corporation), 0x00d2, 0x04100000 / 2 USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06100000 / 2 USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0x06110000 / 3

That panic was not caused by third-party software. If the problem is recurrent, the possibilities are:
A stale or corrupt kernel cache
A damaged OS X installation
A fault in a peripheral device, if any
Corrupt non-volatile memory (NVRAM)
An internal hardware fault (including incompatible memory)
An obscure bug in OS X
You may already have ruled out some of these.
Rule out #1 by booting in safe mode and then rebooting as usual. Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.
You can rule out #2 and #3 by reinstalling the OS and testing with non-essential peripherals disconnected and aftermarket expansion cards removed, if applicable. Sometimes a clean reinstallation (after erasing the startup volume) may solve a problem that isn't solved by reinstalling in place, without erasing.
Corrupt NVRAM, which rarely causes panics, can be ruled out by resetting it.
If your model has user-replaceable memory, and you've upgraded the memory modules, reinstall the original memory and see whether there's any improvement. Be careful not to touch the gold contacts. Clean them with a mild solvent such as rubbing alcohol. Aftermarket memory must exactly match the technical specifications for your model. Memory that is either slower or faster than specified may be incompatible.
The Apple Hardware Test or Apple Diagnostics, though generally unreliable, will sometimes detect a fault. A negative test can't be depended on. Run the extended version of the test.
In the category of obscure bugs, reports suggest that FileVault may trigger kernel traps under some unknown conditions. Most, though not all, of these reports seem to involve booting from an aftermarket SSD. If those conditions apply to you, try deactivating FileVault.
Connecting more than one display is another reported trigger for OS X bugs.
If your system is not fully up to date, running Software Update might get you a bug fix.
In rare cases, a malformed network packet from a defective router or other network device can cause panics. Such packets could also be sent deliberately by a skillful attacker. This possibility is something to consider if you run a public server that might be the target of such an attack.
If none of the above applies, make a "Genius" appointment at an Apple Store to have the machine tested. You may have to leave it there for several days. There isn't much point in doing this unless you can reproduce the panic, or if you can't, it happens often enough that it's likely to be repeated at the store. Otherwise you may be told that nothing is wrong.
Print the first page of the panic report and bring it with you.
Back up all data on the internal drive(s) before you hand over your computer to anyone. If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you know how to restore, and you have at least two independent backups.) Don’t erase the recovery partition, if present.
Keeping your confidential data secure during hardware repair
*An SSD doesn't need to be zeroed.

My external display suddenly stopped working...help?!?

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