Macbook + Alesis iO26 + HP 20" TFT = bad inteference

Hi people
So I'm using a Intel Macbook 2gig core 2 duo with an Alesis iO26 firewire audio interface. These two work great together but when I plug in my newly acquired HP 2007 20" TFT (vga only) I get serious sonic interference. I've tried two Apple mini dvi to vga adaptors so I can rule this out. Was wondering if any of you have a similar setup ie macbook + firewire + tft. Do you think a dvi tft would be less susceptible to interference.
Any help welcome
Cheers Paul

Welcome to Apple Discussions.
How many different things are plugged into the Alesis? It sounds like the HP monitor is completing a ground loop, but that means some other attached device would also be complicit as part of the loop. If the Alesis has a headphone jack, I would start unplugging everything one-by-one until only the headphones are left and see if, and at what point, the interference goes away. In this manner, try and isolate what might be the problem kit, apart from the monitor.
Often times trouble arises from two different AC mains circuits (two different wall plugs) being used that don't properly reference one another because of mistakes in the wiring behind the walls. If possible, use a single power strip plugged into but one wall outlet and then plug all the kit, including the Mac and all it's kit, into the power strip. Of course be aware that the single circuit isn't being overloaded, in case you have some really big amps involved.

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H Front porch: 64 pixels
H Sync width: 136 pixels
H Back porch: 200 pixels
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V Front porch: 1 line
V Sync width: 3 lines
V Back porch: 23 lines
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Lion 2012 wrote:
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Mon Jul 21 19:19:39 2014
Machine-check capabilities 0x0000000000000c07:
family: 6 model: 42 stepping: 7 microcode: 40
Intel(R) Core(TM) i5-2435M CPU @ 2.40GHz
7 error-reporting banks
threshold-based error status present
extended corrected memory error handling present
Processor 0: no valid machine-check state
Processor 1: no valid machine-check state
Processor 2: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0xb200000000030005 valid
MCA error code:            0x0005
Model specific error code: 0x0003
Other information:         0x00000000
Threshold-based status:    Undefined
Status bits:
   Processor context corrupt
   Error enabled
   Uncorrected error
IA32_MC1_STATUS(0x405): 0x0980000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0000000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
IA32_MC5_STATUS(0x415): 0x0020000000000000 invalid
IA32_MC6_STATUS(0x419): 0x0020000000000000 invalid
Processor 3: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0xb200000000030005 valid
MCA error code:            0x0005
Model specific error code: 0x0003
Other information:         0x00000000
Threshold-based status:    Undefined
Status bits:
   Processor context corrupt
   Error enabled
   Uncorrected error
IA32_MC1_STATUS(0x405): 0x0980000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0000000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
IA32_MC5_STATUS(0x415): 0x0020000000000000 invalid
IA32_MC6_STATUS(0x419): 0x0020000000000000 invalid
panic(cpu 3 caller 0xffffff800a4dca29): "Machine Check at 0xffffff7f8bdebba7, registers:\n" "CR0: 0x000000008001003b, CR2: 0xffffff80b7740d20, CR3: 0x000000000c672000, CR4: 0x00000000000606e0\n" "RAX: 0x0000000000000031, RBX: 0xffffff8014d0b000, RCX: 0x0000000000000001, RDX: 0x0000000000000000\n" "RSP: 0xffffff8088b83d40, RBP: 0xffffff8088b83d70, RSI: 0x0000000000000007, RDI: 0xffffff8014eab100\n" "R8: 0x0000000000000000, R9: 0x0000000000000007, R10: 0x0000000000000000, R11: 0xffffffffffffff00\n" "R12: 0xffffff8014e605c0, R13: 0x0000000000000007, R14: 0xffffff7f8be00e20, R15: 0x00000000000008f8\n" "RFL: 0x0000000000000046, RIP: 0xffffff7f8bdebba7, CS: 0x0000000000000008, SS: 0x0000000000000010\n" "Error code: 0x0000000000000000\n"@/SourceCache/xnu/xnu-2422.1.72/osfmk/i386/trap_native.c:1 68
Backtrace (CPU 3), Frame : Return Address
0xffffff8083345e80 : 0xffffff800a422f69
0xffffff8083345f00 : 0xffffff800a4dca29
0xffffff8083346060 : 0xffffff800a4f3eaf
0xffffff8088b83d70 : 0xffffff7f8bddc953
0xffffff8088b83e70 : 0xffffff7f8bddbb89
0xffffff8088b83f30 : 0xffffff800a4dda5c
0xffffff8088b83f50 : 0xffffff800a43757a
0xffffff8088b83f90 : 0xffffff800a4378c8
0xffffff8088b83fb0 : 0xffffff800a4d6aa7
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         com.apple.driver.AppleIntelCPUPowerManagement(216.0)[A6EE4D7B-228E-3A3C-95BA-10 ED6F331236]@0xffffff7f8bdd9000->0xffffff7f8be03fff
BSD process name corresponding to current thread: kernel_task
Mac OS version:
13B42
Kernel version:
Darwin Kernel Version 13.0.0: Thu Sep 19 22:22:27 PDT 2013; root:xnu-2422.1.72~6/RELEASE_X86_64
Kernel UUID: 1D9369E3-D0A5-31B6-8D16-BFFBBB390393
Kernel slide:     0x000000000a200000
Kernel text base: 0xffffff800a400000
System model name: MacBookPro8,1 (Mac-94245B3640C91C81)
System uptime in nanoseconds: 338079466454
last loaded kext at 247526636793: com.apple.filesystems.msdosfs 1.9 (addr 0xffffff7f8c1d6000, size 65536)
loaded kexts:
com.apple.filesystems.msdosfs 1.9
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.filesystems.autofs 3.0
com.apple.driver.AudioAUUC 1.60
com.apple.driver.AppleHDAHardwareConfigDriver 2.5.3fc1
com.apple.driver.AppleTyMCEDriver 1.0.2d2
com.apple.driver.AGPM 100.14.11
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.iokit.IOBluetoothSerialManager 4.2.0f6
com.apple.driver.AppleHDA 2.5.3fc1
com.apple.driver.AppleMikeyDriver 2.5.3fc1
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.driver.AppleThunderboltIP 1.0.10
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleLPC 1.7.0
com.apple.driver.ApplePolicyControl 3.4.12
com.apple.driver.AppleSMCLMU 2.0.4d1
com.apple.driver.AppleBacklight 170.3.5
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.driver.AppleMuxControl 3.4.12
com.apple.driver.AppleUpstreamUserClient 3.5.13
com.apple.driver.AppleMCCSControl 1.1.12
com.apple.iokit.IOBluetoothUSBDFU 4.2.0f6
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.2.0f6
com.apple.driver.AppleIntelHD3000Graphics 8.1.8
com.apple.driver.AppleIntelSNBGraphicsFB 8.1.8
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.SMCMotionSensor 3.0.4d1
com.apple.driver.AppleUSBTCButtons 240.2
com.apple.driver.AppleUSBTCKeyEventDriver 240.2
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com.apple.driver.AppleIRController 325.7
com.apple.iokit.SCSITaskUserClient 3.6.0
com.apple.driver.AppleFileSystemDriver 3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 35
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.4.0
com.apple.driver.AppleUSBHub 650.4.4
com.apple.driver.AppleFWOHCI 4.9.9
com.apple.driver.AirPort.Brcm4331 700.20.22
com.apple.driver.AppleAHCIPort 2.9.5
com.apple.iokit.AppleBCM5701Ethernet 3.6.9b9
com.apple.driver.AppleSDXC 1.4.0
com.apple.driver.AppleUSBEHCI 650.4.1
com.apple.driver.AppleUSBUHCI 650.4.0
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleACPIButtons 2.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.0
com.apple.driver.AppleACPIEC 2.0
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 216.0.0
com.apple.nke.applicationfirewall 153
com.apple.security.quarantine 3
com.apple.driver.AppleIntelCPUPowerManagement 216.0.0
com.apple.kext.triggers 1.0
com.apple.AppleGraphicsDeviceControl 3.4.12
com.apple.iokit.IOSerialFamily 10.0.7
com.apple.driver.DspFuncLib 2.5.3fc1
com.apple.vecLib.kext 1.0.0
com.apple.iokit.IOAudioFamily 1.9.4fc11
com.apple.kext.OSvKernDSPLib 1.14
com.apple.iokit.IOSurface 91
com.apple.iokit.IOBluetoothFamily 4.2.0f6
com.apple.driver.AppleThunderboltEDMSink 1.2.1
com.apple.driver.AppleThunderboltDPOutAdapter 2.5.0
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.driver.AppleBacklightExpert 1.0.4
com.apple.driver.AppleGraphicsControl 3.4.12
com.apple.iokit.IOFireWireIP 2.2.5
com.apple.driver.AppleHDAController 2.5.3fc1
com.apple.iokit.IOHDAFamily 2.5.3fc1
com.apple.driver.AppleSMBusController 1.0.11d1
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.2.0f6
com.apple.iokit.IONDRVSupport 2.3.6
com.apple.iokit.IOGraphicsFamily 2.3.6
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.IOPlatformPluginFamily 5.5.1d27
com.apple.driver.AppleSMC 3.1.6d1
com.apple.driver.AppleThunderboltDPInAdapter 2.5.0
com.apple.driver.AppleThunderboltDPAdapterFamily 2.5.0
com.apple.driver.AppleThunderboltPCIDownAdapter 1.4.0
com.apple.driver.AppleUSBMultitouch 240.6
com.apple.iokit.IOUSBHIDDriver 650.4.4
com.apple.driver.AppleUSBMergeNub 650.4.0
com.apple.driver.AppleUSBComposite 650.4.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.6.0
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.iokit.IOAHCISerialATAPI 2.6.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.6.0
com.apple.driver.AppleThunderboltNHI 1.9.2
com.apple.iokit.IOThunderboltFamily 2.8.5
com.apple.iokit.IOUSBUserClient 650.4.4
com.apple.iokit.IOFireWireFamily 4.5.5
com.apple.iokit.IO80211Family 600.34
com.apple.iokit.IOAHCIFamily 2.6.0
com.apple.iokit.IOEthernetAVBController 1.0.3b3
com.apple.driver.mDNSOffloadUserClient 1.0.1b4
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOUSBFamily 650.4.4
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 278.10
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 7
com.apple.driver.AppleKeyStore 2
com.apple.driver.DiskImages 371.1
com.apple.iokit.IOStorageFamily 1.9
com.apple.iokit.IOReportFamily 21
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 2.0
com.apple.iokit.IOPCIFamily 2.8
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.pthread 1
com.apple.kec.corecrypto 1.0

sn4psh0t wrote:
My main concern is: could this be overheating related?
Temperature levels are affected by several things such as the type and number of applications open, the ambient temperature, how the MBP is physically positioned and occasionally by foreign matter inside the unit. The temperatures that you describe for given circumstances are not necessarily out of line. Here is a screenshot of a temperature monitor from my MBP as I respond to you:
This is with a very light load on the MBP resources and is less than the 50°c that you report, but there could be explanations for the differences. The specific details would have to be examined but all told I do not view this as a matter for grave concern.
Temperatures in the 90°c+ range are not unusual when running applications such as Skype or rendering video. Again knowing the details would be required to make a definitive statement one way or the other.
Be aware that there are thermal shutdown provisions in the MBP that will protect it from heat damage.
Ciao.

MacBook Pro typing lag, slow performance, bad battery

I upgraded to my current MBP from my last MBP because the older one wasn't perfoming well. Now I'm having the same issues with my new MBP.
Current: 2012 15" MBP Retina Display, 2.6 i7 Quad Core, 16 GB RAM, 500 GB SSD, running OS X 10.8.3 and Windows 7
Old: 2010 13" MPB 2.26 Intel Core 2 Duo, 4 GB RAM, 250 GB HD, running OS X10.8 - starting running slowly after I loaded Lion
There is a crazy tying lag and it takes forever to type anything. It's frustrating not seeing what is going on. I'm trying to do my school work but it's impossible since everything takes forever and I make so many mistakes. If I move the cursor at al before the lag is over and what I typed finishes , it starts writing the text where I move the cursor. Then if I try to delete anything, it gets worse.
Worst part - THIS computer works faster than the newer pros: 13" White Macbook - 1.82 GHz Intel Core Duo, 1 GB RAM, 80 GB Hard Drive w/Snow Leopard
I'm so incredibly frustrated right now. I never had these issues on the Dells or other cheaper notebooks I owned.
Web pages seem to load fine, but I'm unable to scroll for about a minute after the pages load and typing is awful. I've had issues with one browser window open and nothing else running (broswer doesn't matter. It's slow in Safari and Chrome.)
Also my battery lasts about 100 minutes with both operating systems in use. It goes down 1% every minute!

As far as the battery I'd recommend calibrating it and taking care of it per these two articles:
http://www.apple.com/batteries/
http://discussions.apple.com/thread.jspa?threadID=1764220
On your slow booting issue check System Preferences-Accounts-Login Items and then see if you have applications that are loading that you don't need. If you do highlight them and click the - at the bottom of the box.
Roger

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I have a macbook pro bought around October 2010. It has 3 years international warranty.
Few months back when I wanted to use skype, I figured out that the camera is not working. Took it to Apple care centre in Bangalore.
They found the camara to be defective. From their notes
" Reset SMC and PRAM. No go. Tried with known good OS. No go. Found camera not detected in system profiler. Checked with known good display. Camera working. Denied coverage as dent on the display clamshell"
Chatted with the relationship officer Joana,
1. I fail to understand that replacing the camera requires relplacing the whole display
2. Small scrach (can send the picture to you) on the outer cover of teh display is not the root cause of the camera not working
3. Display is working perfectly fine. Only camera not working
The relationship officers are such dumb and techically challenged people, that they fail to understand the real issue and instead just try to console you.
If camera is not working due to a defect, it needs to be replaced in warranty, if Apple's design dictates camera replacemnt to the whole display replacement, so be it.
Due to my feedback, some of my colleges (10+ guys) took Macbook pro. Extreamely dis-satisfied with the support cell and their techical abilities. Did not expect this from Apple. Will not take any Apple product and will not recommend anyone. Thinkpad rocks!!

read this: http://support.apple.com/kb/ht2090

My macbook getting stuck and running very badly

My macbook (unibody aluminum model late 2008) is running slowly, getting stuck and not respondings alot! I upgraded the system to os x snow leopard but that didn't make it better.
What's the matter?
Note: more iformation about my mac:
Model Name:          MacBook
Model Identifier:          MacBook5,1
Processor Name:          Intel Core 2 Duo
Processor Speed:          2.4 GHz
Number Of Processors:          1
Total Number Of Cores:          2
L2 Cache:          3 MB
Memory:          2 GB
Bus Speed:          1.07 GHz
Boot ROM Version:          MB51

If you have not already done so, back up your Mac since those symptoms may indicate a failing hard disk drive. It can be replaced, if necessary.
Start your MacBook using its original System Install DVD and run Disk Utility. Repair the disk. Report any errors it finds.

Facetime connection over phone is bad, over macbook is fine?

Whenever I FaceTime my girlfriend phone to phone our connection is usually quite bad. Lots of reconnecting, lagging, "poor connection" messages on the screen, and generally just choppy video and audio.
Whenever I FaceTime her from my phone to her Macbook, our connection is flawless. However, after a while it becomes difficult to hear her. I hear static noises and sound almost as if a fan is running in the background (I assume its her computer). Usually a simple restart fixes this.
Is there anyway to diagnose the poor connection from phone to phone? Generally when it works well, it is better than phone to macbook quality-wise

Is she in a bad cellular reception area? I am presuming that may be one reason for the discrepancy since presumably the Mac is on WiFi.
Can you try the FaceTime over WiFi only after shutting cellular data down?
Also is this only when FT with your phone or does her phone have issues using FT with anyone else?

Bad Quality Macbook Pro and Deficient Apple Technical Support in Argentina!!!

I have a Mac Book Pro that I bought a year ago and the last couple of months have been working really bad!
I sent it to the technical support and they told me they have to change several parts of it. After 2 months I'm still waiting for a response using a terrible slow machine that works like crap.
This was my first Macbook Pro and I was happy that I wouldn't have so many problems as in my previous Ubuntu PC but now I realized how silly I was, components from this Macbook Pro seems to be really bad and getting it fixed in countries like Argentina is almost impossible.
I'm a computer engineer and I've been really unpdroductive during the last months, so this make me consider the idea of going back to Linux or even a Windows Machine, since having a Macbook Pro proved to be a terrible experience for someone who really needs to trust in their computer.
I'm travelling to San Diego next week, does anybody know how can I fix this problem there or something?
Thanks in advance!

Sorry eww about that, I'm not sure what parts need to be replaced apart from the logic board (it seems that is the motherboard + microprocessor).
I'm not sure mac users can do something to help me, but I was expecting that after my experience other people willing to have mac support in Argentina realizes that it's really bad!
Thanks again for your interest!

Macbook + Alesis iO26 + HP 20" TFT = bad inteference

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