MacBook Air dpc latency problem

My MacBook Air (2x 2.86 GHz, 128 GB SSD) has poor dpc latency values, prohibiting, e.g., recording of DAB (digital audio broadcast). The problem would seem to be caused by the "too slow" USB drivers. I wonder, whether there is a remedy for this available? For details related to dpc latency see
http://www.thesycon.de/deu/latency_check.shtml
PS: Elgato apparently does not provide software/drivers for recording DAB. So switching to Mac OS on my machine does not help.
Siggi Engelbrecht

Hallo T1MUR,
vielen Dank für den Hinweis. Hat's gebracht!
Thanks a lot for that hint, I followed your suggestions and it worked just fine. The scripts you provided in my case all appear to just switch off KbdMgr.exe without leaving me with a lot of choices. I still have to figure out whether this behaviour can be improved by editing your batch files. For the time being it probably would suffice to kill the process in the windows task manager and to switch it on again if needed by double clicking it in the c:\programs\boot camp directory. One then has to reenable the function keys manually, whereas all other tunings affected by boot camp are kept. This is slightly inconvenient, but it's ok. The differences may be due to the fact that I am dealing with a MacBook Air, not a MacBook Pro.
Thanks again for your help, I really appreciated this.
Siggi Engelbrecht

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Hey iWeb plubishing problems,
I would first check to make sure that you meet the system requirements for OS X to support Documents in the Cloud. For that your Mac’s needs to be running at least OS X Lion 10.7.5 or later to make sure that everything syncs. Take a look at the article below for more information.
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DPC Latency problem

Hi everyone ;)
I'm trying to fix my pc. I'm experiencing DPC Latency problem and it causes audio stuttering. I'm running Windows 8.1 x64. When I'm running LatencyMon, it shows me that some of my drivers give a really high latency.
I was trying to install new drivers, turn off my soundcard (Sound blaster Audigy SE). The problem started to occur, just after a clean install of Windows 8.1, two days ago. Earlier I did not have any problems
with DPC latency. The weird thing is, that I do not have any audio problems when playing games. The problems occur when I'm listening to music or watching movies. Thanks for your help and sorry for my bad english.
PS My computer specs:
Gigabyte GA-G41M-Combo (rev. 1.3)
4 GB DDR3 RAM
Nvidia GeForce 450GTS
Intel Core2Quad 2.5GHz
Creative Sound Blaster Audigy SE
Wireless mouse and keyboard (microsoft ones)
Drivers causing DPC Latency:
ntoskrnl.exe
USBport.sys
dxgkrnl.sys
nvlddmkm.sys
ataport.sys
CLASSPNP.sys
rspLLL64.sys
Thank you for your help!

Hi,
First, please let me know what player you use to listen to music or watch movies? I considered the codec conflict.
If there is any third part player installed, please remove it to check the issue.
If the issue still persists, please upload the .etl file here for further research.
Keep post.
Kate Li
TechNet Community Support

Macbook air Shut down problem

Hi everyone,
I used to have the shut down problem with my Macbook air. I have an 11" Later 2011 Macbook air.
The problem did not go away after updating to Mountain lion.
I just realized that although I was closing all programs, I was not ejecting my 3G modem/dongle.
Once I ejected it before commanding it to shut down, it did shut down properly.
I thought I should share it with you. May be there is a program that has not been closed or a devise that has not been unplugged/ejected properly and is restricting the shut down.
It worked for me. Hope it will work for you.
Enjoy your Mac.
J.

    Reset SMC.     http://support.apple.com/kb/HT3964
    Choose the method for:
    "Resetting SMC on portables with a battery you should not remove on your own".
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     Best,

DPC Latency problems ever fixed on P43 Neo?

I was thinking about buying the P43 Neo-F but I was wondering if the DPC problems were ever fixed in an official bios? It's been a long time since they were reported so they should be but I thought I should check first.

Quote
Assuming the P43-Neo is the same thing as the Neo-F(because the Neo-f has no downloads) then the newest version is 1.a released on 8/18/09. I have no idea when the China bios was released.
The latest version was released on 08/13/2009. The name of the BIOS is A7519ICI.1A2.
In case you should have DPC Latency Problems that lead to drop-outs during Live Audio and video streams, you can contact MSI Technical Support and they will officially provide you with this BIOS Release. If you don't have any problems (no lags etc. related to DPC Latency Problems), then keep using the BIOS Versions of the standard release series.
Quote
If I can't download it from the main bios page then it's not official IMO.
If you can't download it from the main BIOS page, this means that the Release is not available for public download, not that it is not an official MSI BIOS Release.
Quote
Plus, isn't that bios kinda old compared to the ones listed in the normal download section.
Nope, as you can see it is quite up-to-date (it is updated on a regular basis (to keep it up-to-date with the standard series releases and the fixes these contain).
Quote
I have no idea when the China bios was released.
Now you do.

Mid-2013 macbook air Battery life problem

hi,
i don't know what's the problem on my macbook air but battery life always shows less than 10 hour...
any idea?
i have posted that etrecheck results... what should i do?
Hardware Information:
          MacBook Air (13-inch, Mid 2013)
          MacBook Air - model: MacBookAir6,2
          1 1.3 GHz Intel Core i5 CPU: 2 cores
          4 GB RAM
Video Information:
          Intel HD Graphics 5000 - VRAM: 1024 MB
Audio Plug-ins:
          BluetoothAudioPlugIn: Version: 1.0
          AirPlay: Version: 1.9
          AppleAVBAudio: Version: 2.0.0
          iSightAudio: Version: 7.7.3
System Software:
          OS X 10.9 (13A603) - Uptime: 0 days 0:8:22
Disk Information:
          APPLE SSD SM0256F disk0 : (251 GB)
                    EFI (disk0s1) <not mounted>: 209.7 MB
                    Macintosh HD (disk0s2) /: 250.14 GB (13.29 GB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
USB Information:
          Apple Internal Memory Card Reader
          Apple Inc. BRCM20702 Hub
                    Apple Inc. Bluetooth USB Host Controller
FireWire Information:
Thunderbolt Information:
          Apple Inc. thunderbolt_bus
Kernel Extensions:
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
          [loaded] com.adobe.fpsaud.plist
          [loaded] com.adobe.SwitchBoard.plist
          [loaded] com.google.keystone.daemon.plist
Launch Agents:
          [not loaded] com.adobe.AAM.Updater-1.0.plist
          [loaded] com.google.keystone.agent.plist
User Launch Agents:
          [failed] com.coppertino.VoxHelper.plist
          [failed] com.google.GoogleContactSyncAgent.plist
          [loaded] com.spotify.webhelper.plist
User Login Items:
          iTunesHelper
          Adobe Bridge CS5
3rd Party Preference Panes:
          Flash Player
Internet Plug-ins:
          AdobePDFViewer.plugin
          Default Browser.plugin
          Flash Player.plugin
          FlashPlayer-10.6.plugin
          Flip4Mac WMV Plugin.plugin
          googletalkbrowserplugin.plugin
          JavaAppletPlugin.plugin
          npgtpo3dautoplugin.plugin
          o1dbrowserplugin.plugin
          QuickTime Plugin.plugin
User Internet Plug-ins:
Bad Fonts:
          None
Time Machine:
          Time Machine not configured!
Top Processes by CPU:
               5%          WindowServer
               3%          Dock
               1%          EtreCheck
               1%          fontd
               0%          warmd
               0%          loginwindow
               0%          aosnotifyd
Top Processes by Memory:
          123 MB             com.apple.IconServicesAgent
          82 MB              Finder
          78 MB              CVMCompiler
          70 MB              Safari
          61 MB              mds_stores
          57 MB              WindowServer
          57 MB              Mail
          57 MB              com.apple.WebKit.WebContent
          53 MB              Dock
          29 MB              mds
Virtual Memory Statistics:
          1.36 GB            Free RAM
          1.31 GB            Active RAM
          796 MB             Inactive RAM
          561 MB             Wired RAM
          351 MB             Page-ins
          0 B                Page-outs

battery time remaining is currently unreliable, techs are looking into it.
What ACTUAL time are you getting off a full charge?
rely on battery % until there is a resolution
there are no suspect apps or processes in your list that i see
Peace

New Mid 2013 Macbook Air has Battery Problems

I'm having problems with my new Mid 2013 Macbook Air. I read it's to do with the i7 processor or using Chrome. Below are the details from etresoft scan. Any help on how to find and shut down unecessary items/processes much appreciated?
Hardware Information:
          MacBook Air (13-inch, Mid 2013)
          MacBook Air - model: MacBookAir6,2
          1 1.7 GHz Intel Core i7 CPU: 2 cores
          8 GB RAM
Video Information:
          Intel HD Graphics 5000 - VRAM: 1024 MB
Startup Items:
          HP USB EWS Gateway - Path: /Library/StartupItems/HP USB EWS Gateway
          HWNetMgr - Path: /Library/StartupItems/HWNetMgr
          HWPortDetect - Path: /Library/StartupItems/HWPortDetect
System Software:
          OS X 10.8.4 (12E3200) - Uptime: 0 days 1:45:46
Disk Information:
          APPLE SSD SD0256F disk0 : (251 GB)
                    disk0s1 (disk0s1) <not mounted>: 209.7 MB
                    Macintosh HD (disk0s2) /: 250.14 GB (95.74 GB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
USB Information:
          Apple Internal Memory Card Reader
          Apple Inc. BRCM20702 Hub
                    Apple Inc. Bluetooth USB Host Controller
FireWire Information:
Thunderbolt Information:
          Apple Inc. thunderbolt_bus
Kernel Extensions:
Problem System Launch Daemons:
Problem System Launch Agents:
          [loaded] com.paragon.NTFS.trial.plist
          [loaded] com.paragon.NTFS.upd.plist
Launch Daemons:
          [loaded] cn.com.zte.PPPMonitor.plist
          [loaded] com.adobe.fpsaud.plist
          [not loaded] com.adobe.SwitchBoard.plist
          [loaded] com.google.keystone.daemon.plist
          [loaded] com.microsoft.office.licensing.helper.plist
Launch Agents:
          [not loaded] com.adobe.AAM.Updater-1.0.plist
          [loaded] com.adobe.CS5ServiceManager.plist
          [loaded] com.google.keystone.agent.plist
User Launch Agents:
          [loaded] com.divx.agent.postinstall.plist
          [failed] com.facebook.videochat.plist
          [loaded] com.spotify.webhelper.plist
          [not loaded] Internet Everywhere
User Login Items:
          Google Chrome
          VMCStatusMenu
3rd Party Preference Panes:
          DivX
          Flash Player
          Paragon NTFS for Mac ® OS X
          Perian
Internet Plug-ins:
          DivXBrowserPlugin.plugin
          Flash Player.plugin
          FlashPlayer-10.6.plugin
          googletalkbrowserplugin.plugin
          JavaAppletPlugin.plugin
          npgtpo3dautoplugin.plugin
          o1dbrowserplugin.plugin
          OVSHelper.plugin
          QuickTime Plugin.plugin
          SharePointBrowserPlugin.plugin
          Silverlight.plugin
User Internet Plug-ins:
          Dashlane.plugin
          Picasa.plugin
Bad Fonts:
          None
Top Processes by CPU:
               2%          EtreCheck
               2%          WindowServer
               1%          Google Chrome
               0%          pbs
               0%          Microsoft Word
               0%          fontd
               0%          quicklookd
               0%          Microsoft Excel
               0%          Finder
               0%          coreservicesd
Top Processes by Memory:
          328 MB             mds
          262 MB             Google Chrome
          164 MB             Finder
          131 MB             Microsoft Word
          106 MB             WindowServer
          98 MB              Microsoft Excel
          90 MB              Dashlane
          66 MB              Calendar
          66 MB              Google Chrome Helper
          66 MB              DashlaneAgent
Virtual Memory Statistics
          2.69 GB            Free RAM
          3.45 GB            Active RAM
          1.01 GB            Inactive RAM
          858 MB             Wired RAM
          2.38 GB            Page-ins
          0 B                Page-outs

I did need to install the software so thanks for that but the battery life is still reporting only about 6 hours for a brand new mid 2013 macbook air 13 inch.

MacBook Air Hard Drive Problems?

Ok, so I have a MacBook Air. I don't know the exact model, but it's a school laptop from Oxford Hills Comprehensive High School in Maine. I was watching a movie on the laptop, and I went to use Google Chrome, and Finder froze, and I got the little rainbow wheel spinny thing. So I shut down the computer, then when I turned it back on I got the blinking question mark folder. I looked everywhere for answers, and chose internet recovery. I did that, finally got to the disk utility section, and all that is there is "Disk0" with "Mac OS X Base System" under it. I'm familiar with what disk utility is, and I know that Startup Disk and Macintosh HD should be there, but they're not. There's nothing else there. I'm freaking out right now. There was a crap ton of files on there that I need (about 55 gigs worth, it's just music files and ideas). Almost 3 years of music production and important stuff for school. I looked everywhere for a place to send my laptop to, like Drivesavers, and some other company, and I don't have 1500 dollars to get back this stuff. I have literally tried everything on every link, every forum, and every page on here, and Google, and nothing is working. I need help now, if there's a solution I need to know it. Nothing will work, I've tried safe mode, verbose mode, holding option/alt, shift, command+shift+V/S, and absolutely nothing but getting to Internet Recovery, and then going to reinstall mountain lion 10.8, and there's nothing to choose from to reinstall it, and nothing in disk utility but disk0 and mac base system. I haven't downloaded anything unsafe. I just really need my files back without paying 1000s of dollars, and without destroying this laptop. I didn't get the warranty from my school for the laptop, because I don't have 150 dollars. I treated this laptop with care, and then all of a sudden this crap happens. It's never been dropped, there isn't any unusual sounds coming from it, it turns on fine, except this hard drive, or SSD, or IDK what it's called I'm not too tech savy with a problem like this. Please respond ASAP, and please read this thoroughly, and don't ask stuff that has been answered, not to sound like a jerk, but I've had problems here, and people just ignore me and blow me off.

Is there an open application that is using data on the external drive? If so, quit it before trying to eject.

Macbook Air 2013 USB problems (won't connect/ reconnecting)

I have a new Macbook Air 13-inch Mid 2013 with all the upgrades possible (1.7 Ghz i7, 8GB RAM, 512 GB SSD). I am running Mac OS X 10.8.5. Every software is at the latest version.
I am having troubles connecting a couple of USB 2.0 devices to the Macbook. The first one is my phone. It's a HTC One and when I plug it in dmesg gives this output:
USB (XHCI Root Hub USB 2.0 Simulation):Port 2 on bus 0xa connected or disconnected: portSC(0xe0206e1)
USBF:          6342.136          The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 2 of Hub at 0x14000000)
USBF:          6342.136          The IOUSBFamily was not able to enumerate the device (Port 2 of Hub at 0x14000000).
USBF:          6343.773          The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 2 of Hub at 0x14000000)
USBF:          6344.242          The IOUSBFamily was not able to enumerate the device (Port 2 of Hub at 0x14000000).
USBF:          6345.579          The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 2 of Hub at 0x14000000)
USBF:          6347.837          The IOUSBFamily was not able to enumerate the device (Port 2 of Hub at 0x14000000).
USBF:          6348.705          The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 2 of Hub at 0x14000000)
USBF:          6349.481          The IOUSBFamily has successfully enumerated the device (Port 2 of Hub at 0x14000000).
considerRebuildOfPrelinkedKernel prebuild rebuild has expired
USBMSC Identifier (non-unique): SH366W906094 0xbb4 0xf91 0x228, 2
USBMSC Identifier (non-unique): SH366W906094 0xbb4 0xf91 0x228, 2
USBF:          6368.478          IOUSBCompositeDriver(Android Phone)::ConfigureDevice GetFullConfigDescriptor(0) #2 returned NULL, trying ResetDevice and then trying again
USBMSC Identifier (non-unique): SH366W906094 0xbb4 0xf91 0x228, 2
The Identifier message keeps repeating every couple of seconds until I plug the phone out. It also won't show in System Report -> USB.
The second device is a Kinect for Windows (Model 1517). Here it is almost the same. dmesg gives me the following output:
USB (XHCI Root Hub USB 2.0 Simulation):Port 1 on bus 0xa connected or disconnected: portSC(0xe0206e1)
USBF: 6916. 69 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 2 of Hub at 0x14100000)
USBF: 6916. 69 The IOUSBFamily was not able to enumerate the device (Port 2 of Hub at 0x14100000).
These three lines keep repeating every couple of seconds until I plug it out again. But here I get something in System Report -> USB:
Hub:
Product ID: 0x02c2
Vendor ID: 0x045e (Microsoft Corporation)
Version: 0.01
Speed: Up to 480 Mb/sec
Location ID: 0x14100000 / 15
Current Available (mA): 500
Current Required (mA): 2
Microsoft Kinect Camera:
Product ID: 0x02bf
Vendor ID: 0x045e (Microsoft Corporation)
Version: 2.05
Serial Number: 0000000000000000
Speed: Up to 480 Mb/sec
Manufacturer: Microsoft
Location ID: 0x14120000 / 22
Current Available (mA): 500
Current Required (mA): Unknown (Device has not been configured)
Microsoft Kinect Audio, © 2011 Microsoft Corporation. All rights reserved.:
Product ID: 0x02be
Vendor ID: 0x045e (Microsoft Corporation)
Version: 1.00
Serial Number: A22595W01332214A
Speed: Up to 480 Mb/sec
Manufacturer: Microsoft
Location ID: 0x14110000 / 3
Current Available (mA): 500
Current Required (mA): Unknown (Device has not been configured)
This is still a little strange because there are supposed to be 3 devices (the motor is missing).
So, I haven't yet had the chance to test on other computers but I will try to get my hand on one this weekend. And I will buy an external powered USB-hub to see if it is a power issue, which I doubt because the phone doesn't need that much and the Kinect comes with an external power supply.
Any idea how I can use my hardware? Is there anything more I have to look for? Known bugs? Do you need more information? ANY help is highly appreciated!
Thank you!

For me the issues are resolved but I guess it won't help you much. Sry.
The HTC One could not properly connect because the USB cable was broken somehow. I bought a new one and it worked ever after. It's crazy because I tried 3 cables before (which I had successfully used with other devices), but they were all very cheap, from the same manufacturer and bought at the same time. Must have been a bad batch or something.
The Kinect was a different story. Here the problem was that the firmware was not compatible with the driver on the MAC. I did some research and since I can't make my own drivers I got myself another Kinect with an older firmware and that resolved this issue.
Good luck.

Macbook air hdmi connection problem

I cannot get my macbook air to connect to my tv via an hdmi cable. I suspected my cable until my neighbor had the same issue. Have others experienced this and is there a solution?

I have had this same problem. Has the wifi worked before? What I did was I turned my wifi off, then I restarted my computer, then I turned my wifi back on. If that doesnt work, leave the wifi off, and shut it down for a while. Hope I could help!

2008 Macbook Air Screen Hinge Problem

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I'm a college student with no car or Apple store nearby and the laptop was shipped back to me because of that. If I had to go another week without a laptop that would have been disasterous, but more importantly I had no way of knowing it would stop working or that the slight misalignment was anything other than cosmetic, I'm no tech genius and I clearly wasn't the one who put the laptop together wrong. It wasn't even my fault the hinge got loose in the first place! Sigh, I suppose if they can't make this right I hope I can learn to use Windows.

MacBook Air 2013 Internet problems

I just recently ordered a 2013 MacBook Air and it arrived in the mail today. All was going well until I began to encounter problems with the Internet, repeatedly. When it's working everything is fine and dandy, but sometimes when I am trying to look something up the bar will just stop loading the new page, and I'm stuck there until I restart it or log off and back on again. When the bar stops loading I can't do anything that requires Internet, until I choose one of my two previously said options. Can someone please help me? I bought this machine for college, and if im having these (very) frustrating problems already I'm going to go crazy! Unfortunately I'm not one of those tech-savvy people who can change their Internet channels and such!! Please help!

The warranty entitles you to complimentary phone support for the first 90 days of ownership. If you bought the product in the U.S. directly from Apple (not from a reseller), you also have 14 days from the date of delivery in which to exchange or return it for a refund. In other countries, the return policy may be different.

MacBook Air 2013 Camera Problems

I have a MacBook Air 2013 and recently, after the most current update my built-in camera not only does not work with Skype but does not work with Facetime or Photobooth either.
Under "Camera" in System Report my camera does not show up. I have rebooted, shutdown and cold-booted, pressed Shift + Alt + Ctrl + Command when booting.
I don't want to do a fresh install of my (brand new) computer all over again just yet. What should I do? Is it a software issue?
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scintoon

Hey dominic23,
Thanks - that update solved the issue of me not being able to use the webcam. However, now my mic does not work as well. I have rebooted a few times (shut down, cold boot) as well as holding the Shift + Alt + Command when powering up.
Is there a fix to this? Apple seriously needs to fool-proof these updates. Or, at least never have any of these problems in Mavericks
Thanks for all your help.

Macbook air 2012 wifi problem

Hi,
I have just bought a new macbook air and Im finding that the wireless keeps dropping at random times, it is not the router as I have a connection on my old 2008 Macbook, windows laptop and ipads etc.
I have done some browsing on the net and found that alot of peope have the same problem, however, I cant seem to find a definate fix.
I would be very grateful if anyone could help me with this problem.
Thanks,
P

try this.
http://support.apple.com/kb/TS4611

MacBook Air wireless connection problem after sleep mode

Hello guys,
My MacBook Air have problems to connect back to my wireless after comming back from sleep mode. It needs few minutes until it finds again the network.
Does anyone have the same problem or better, a solution to this?

Hello there TheTomcat,
I would recommend the Solution section of our article Troubleshooting Wi-Fi issues in OS X Lion and Mac OS X v10.6 found here http://support.apple.com/kb/HT4628?viewlocale=en_US
Symptom: The network connection drops unexpectedly
Your Mac may not not stay connected to your Wi-Fi network reliably.
Your Mac may stop accessing the Internet during use.
Solution
Additional Information
If your symptom is not listed, or the above steps do not resolve the issue, you can search on the Apple Support site or contact AppleCare for further assistance.
All the very best,
Sterling

MacBook Air dpc latency problem

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