Audio Problem since upgrading to Mountain Lion

Has anyone encountered audio problems with their iMac?  I just upgraded to Mountain Lion on my i7 27" with 16GB of Ram and found that the Audio starts to get distorted and eventually cuts out after about an hour!  It starts cutting in and out when I move the mouse and eventually there will be no sound at all!
  Sometimes it can take over an hour of steady use, my last time was watching a movie on Netflix.  I initially noticed this using a USB DAC Headphone Amp.
I never had any Audio problems before, my machine is over 1 year old.
I enjoy watching movies in iTunes and DVDs, but this is making it difficult!  A full restart usually fixes the problem for a time but it will eventually come back
I'm seriously thinking of going back to Lion for the time being and seeing if it is a Hardware problem.

i don't know if mine is the same issue, but i had no sound through any of my applications after upgrading to mountain lion.  here is what i had to do to fix it:
-- applications > utilities > audio midi setup > UNmute all options under "built-in output" (they were mysteriously muted)
Also, I noticed that the options for "use this device for sound output" and "play alerts & sound effects through this device" were no longer assigned to my Built-in Output device.  They were assigned to some other random sound driver.  To fix, i right-clicked on Built-in Output and reassigned those items to my built in speakers.  All fixed now!
very weird problem, though.

Similar Messages

  • Problem since upgrade to Mountain Lion

    I have a 2.4ghz Intel Core 2 Duo iMac with 4GB of RAM. Ever since I upgraded to 10.8.2 (well Mountain Lion in general) I have been having issues. I cannot connect to my work e-mail through mail any more and if I try to fix it, it freezes the computer. Also the computer will freeze up when playing videos through quicktime and through iTunes. In general it seems to freeze up with just about any program I use at all, unless I'm only using Messenger (even the Twitter app will freeze up). Every so often these freezes force me to force reboot the computer. Usually after doing this I will run fsck, and it usually does fix something, but even after that it takes a long time to load the computer up again and log into my account. I am planning on getting a new iMac within a year, but want this one running as good as it used to, but don't want to have to downgrade. Any advice?

    Mine has been doing that as well, ever since the ML upgrade. I have to restart after I open the MBP. This morning, I took the closed MPB from my case where it had sat all night and it was very hot. Of course, on opening it, it had to be rebooted. Not cool.
    Edit: found this... http://blog.avatron.com/post/28135386805/kernel-panics-mountain-lion-and-bluetoo th

  • Since upgrading to mountain lion my iphone no longer wirelessly connects to my itunes via wi-fi... is there a remedy for this?  thanks

    since upgrading to mountain lion my iphone no longer wirelessly connects to my itunes via wi-fi... is there a remedy for this?  thanks

    I am also having the same problem since upgrading to mountain lion. The symptom is strange.
    If I connect my iPhone/iPad using cable first, uncheck and then check the wifi sync option, and then disconnect the cable, iTunes will still be able to see the devices through wifi. But if I restart my computer, it will fail again. And I am tired of repeating this exercise.
    Anyone has the same problem?

  • Problems with apps since upgrading to Mountain Lion

    Since upgrading to Mountain Lion, I get the message "Application Not Responding" for several apps (Quark 9, CS5 apps, and Word for Mac) after they've been sitting open and not being used for a couple of hours. I have to "Force Quit", then restart the program. Not sure what's going on. Didn't have this problem with Lion. Any suggestions on what I can do to fix this?

    OK, I updated Quark 9, CS5 apps & Word for Mac. Quark 9 and InDesign are still giving me "Application Not Responding" after being open and unused for a few hours. The other apps are now working fine...Photoshop, Illustrator, Adobe Bridge and Word for Mac. Any suggestions for what I should do about Quark and InDesign?

  • Problems with Mail (on O2) since upgrade to Mountain Lion

    After having spent a frustrating few days trying to get this sorted, I thought I should make folk aware of the above problem. Since upgrading to Mountain Lion I have not been able to send email using smtp.o2.co.uk. The O2 call centre notes that a number of folk have been having this problem.
    Some have suggested setting Custom Port to 25 but this hasn't worked for me.
    Apparently O2 are going to get back to me within 5 days with an answer. I'm not holding my breath but am pleased to say I can still use my iPhone to send email.
    Can't help but wonder if this has anything to do with the fact that I signed up for an iCloud (***@me.com) account at the same time.
    Any thoughts?

    I got a fix. it works for me. while i'm on ML. safari and mail doesn't work properly. mail can't send emails with attachment and safari unble to open certain webpages.
    i've log into my Internet modem, enable router mode from bridge mode. it works fine now. no promlem with sending emails or surfing the web. hope it'll helpful for u guys.

  • Since upgrading to mountain lion on my macbook pro, i cannot email photos from iphoto.

    Since upgrading to mountain lion on my macbook pro, i cannot email photos from iphoto.
    i can select the picture but when sending it, an error symbol appears.
    Any ideas ?

    This doesn't work for me at all. I tried entering exactly the same information that I used to set up my regular email account and I'm still getting an error message. I even tried switching to using my gmail account and neither one worked. Then it got hung up and had to repair my database! I have a lot of photos on my Mac (thank goodness they're backed up) and I was really sweating it for a moment.
    Apple is so easy until it's not. I find this to be really aggrevating and I'm irritated that it hasn't been fixed. In fact I did an online search and someone described this same problem in detail and it was exactly what was happening to me. Same error messages.
    I'm frustrated that Apple keeps updating it's operating system and then we go through these glitches.
    And while I'm at it, I have never had such a frustrating time using my login information as I have to get into this forum! Why do they make it so difficult? There's just something about the way it's worded that get's me messed up every time. Meanwhile, at least get iPhoto fixed!

  • Email not readable since upgrading to Mountain Lion

    Since upgrading to Mountain Lion, I am not able to read my email in the upgraded version of Mail.  All my emails ON MY MAC are readable as normal, but my Inbox emails are there and I can read the single line information (From, Subject, Date Received, Mailbox) for all my emails but when I try and open one I get the revolving spindle wheel and Loading message.  My sent box appears empty unless I send a test email and then all my sent emails appear but again when I try and open one all I get is the same as for my inbox emails.  If I quit and reopen Mail, the inbox does not change but all my sent emails "disappear" again.  Is this an indexing problem or do I need to rebuild my mailboxes.  Although I have back ups, I do not want to take any action to make this situation worse.  Any help would be appreciated.

    Hi,
    When you start Messages fro the first time you are asked for an Apple ID
    When this is verified and entered it appears in Messages Menu > Preference > Accounts and is Enabled.
    The App should have also picked on on those iChat Accounst you had before.
    These should be Enabled if they were when you last used iChat.
    Exactly which "Accounts" are logged in can be seen in Message Menu > Accounts and will include the iMessage "Account" and Bonjour.
    In the Window menu you will see CMD +0 for the Messages window and CMD+1 for the "Buddies" window which is a combined list at this stage.
    Go to the Preferences > General Section and Untick the "Collect all accounts into one list".
    This will give you separate iChat type Buddy lists.
    You can check if that account/Buddy list is set to Invisible or if in the Preferences > Accounts > Security you have settings that will block some people from seeing you as On line.
    You are saying Buddies can see you as On Line which implies they are still sending to your AIM based Names (@Mac.com is a valid AIM Screen Name)
    I am not sure from your post if you are trying to iMessage their email IDs thinking they are Apple IDs and that they are using Messages as well.
    There is no Buddy list for iMessages side
    No-one can tell you are "On Line" until they have your details in the "To" spot in Messages with the correct iMessaged contact info (iPhone Number or Apple ID)
    Obviously an Apple ID can be an email or look like one.
    In some cases they are also valid AIM Screen Names as well.
    In the case or the @mac.com name you may have linked this Apple ID to iMessages as well.
    11:31 PM      Saturday; August 11, 2012
    Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
      iMac 2.5Ghz 5i 2011 (Lion 10.7.2)
     G4/1GhzDual MDD (Leopard 10.5.8)
     MacBookPro 2Gb (Snow Leopard 10.6.8)
     Mac OS X (10.6.8),
    "Limit the Logs to the Bits above Binary Images."  No, Seriously

  • Since upgrading to Mountain Lion I cannot connect to my wireless router

    Since upgrading to Mountain Lion I cannot connect to my wireless router. I have 2 wireless networks in my home. One is the primary whuch all of my devices connect to. The other is for backup only. I cannot connect to the primary with my iMac but have no trouble with any of the other devices which include iphones and ipads.phones and iPads. I can however connect to the backup without a problem. I have tried upgrading the firmware of the router as well as changing the security from WEP to WPA-2, no luck. Can anyone help?

    Try this, it's for information.
    In Finder, open the Go menu, press and hold the option  key, 'Library' will appear on the menu, click and scroll to Application Support, open the folder and scroll to 'AddressBook-v22.abcddb'. Click on the file and press Command-I. Towards the bottom you'll see Permissions, tell me what they are please.

  • Just want to ask about the full screen icon that used to be on the play bar but seems to have disappeared since upgrade to mountain lion, any way to get it back?

    Since upgrading to mountain lion I've noticed the full screen icon which used to be on the playback bar in quicktime has gone, I know you can go to the menus to make it full screen but if you're watching something online like with apple trailers I can't seem to make them fullscreen anymore, is it me or have they just taken this option away now?

    I've been playing the trailers in my browser and the full screen option has gone for me,
    As already stated, the icon was replaced by the "Share" pop-up menu icon in the same location.
    and the command-f keys don't work either when I'm playing in a browser and it's truly only been since I upgraded to mountain lion.
    Strange! It works for me. Here is a link to a screen recording of me wayching a trailer in Safari and later watching a trailer download. In both cases the trailer could be expsnded for full screen viewing and then reduced back to the size of the original 720p player display screen. If you can't do this then you may have a player problem also.
    http://downloads.walker4.me/downloads/Temporary_files/ScreenFlow_6.mov
    Why did apple make these changes when they worked perfectly the old way, I mean if it ain't broke don't fix it!
    Only Apple whould know for sure but my guess would be that other users may have requested the "Share" pop-up more. Makes no difference to me because I normally use the key shortcuts anyway.

  • SD card cannot be formatted or written to since upgrade to Mountain Lion.

    Since upgrading to mountain lion, I cannot format (write) to any of my MS-DOS (FAT 32) formatted SD cards. Prior to the upgrade this was never a problem.  Apple Genius bar and calls to support have been no help so far.  Can someone here solve this issue ?

    Hi and Welcome to the Forums! If by "device", you mean your BB, probably not. If, by "device", you mean the card, then probably yes. You can keep diagnosing by trying other things:
    A known-good card in your BB
    This potentially bad card in a different card reader
    This potentially bad card in a known-good BB (one that for sure can read it's Media Card)
    But, given how short a time you've had it, taking it in for evaluation might actually be your best bet.
    Good luck!
    Occam's Razor nearly always applies when troubleshooting technology issues!
    If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
    Join our BBM Channels
    BSCF General Channel
    PIN: C0001B7B4   Display/Scan Bar Code
    Knowledge Base Updates
    PIN: C0005A9AA   Display/Scan Bar Code

  • Bluetooth and Isight not working since upgrade to Mountain Lion

    Hello,
    I have a mid-2010 MBP running OSX 10.8.2.
    Ever since upgrading to Mountain Lion, My bluetooth and iSight both have stopped working.  I have tried the clear the SMC numerous times. Mostly it does not have any effect. However, a couple of times, it has restored service to the iSight and the bluetooth, but as soon as I reboot the machine they are back to being disabled. Sometimes they become available without my resetting the SMC and for seemingly no reason. I have also replaced a couple of different kext files: Apple_iSight.kext and AppleUsbVideoSupport.kext with known good ones. I also Verified and Repaired on the disk. In this case, permissions issues were detected and repaired, but without fixing my original problems.
    I would like desperately to resolve this without buying a new disk and doing a fresh install of OSX Lion. I would definitely NOT go back to Moutain Lion in this scenario. But I don't know what do next. I don't see many posts on this subject and those I have seen do not offer much hope. I know I am not the only one suffering with this, but I don't think Apple is addressing the problems, because they may not be pervasive enough right now.
    If anyone has found a way to resolve this permanently, please share with me. I would like to roll back to Lion, but can't do that either.
    Can anyone help me out?
    Thanks,
    Brad.
    <Edited by Host>

    This is likely a conflict with some 3-rd party s/w you have on the MBP but not the other two computers. Have a look in here
     > System Preferences.. Users & Groups | Login Items
    Is there something in here that's not in the same list on the other Macs? If so, try removing it and restarting your computer. If that solves the problem, try contacting the developer to see if there's an update.
    If that doesn't solve the problem, go through your other 3rd party apps and look for updates on all of them. One of them is stopping your mouse from working properly.

  • Since upgrading to mountain lion unable to play dvd's

    Since upgrading to Mountain Lion I am unable to play DVD's   I get audio but no video

    Perhaps your screen resolution got set back to default? Go to  -> System Preferences -> Displays, click 'Scaled' and try the different resolutions until you get to what you think you had previously.

  • HT1338 outgoing e-mail server not working since upgrade to mountain lion

    unable to send mail on one of my e-mail accounts since upgrading to mountain lion

    I had this problem as well after upgrading to 10.8.
    For all e-mail accounts SMTP servers seemed to be unavailable to Mail, regardless of setting TSL/SSL on or off. It turned out, even Thunderbird was unable to send any mail.
    After trying every hint on this forum twice – and to no avail; I found the culprit to my problem. Upgrading my iMac to Mountain Lion had changed the name, that my machine was using in my home network. The new machine name had "(2)" added to the old name. The brackets seem to have disturbed the SMTP servers I use. After changing the name back to anything w/o special characters I was able to send mail again.
    Very strange, since no error message lead to this direction, and only the SMTP was affected, everything else on the internet worked like a charm.
    So if you run into this problem, and no other solution works for you, make sure your LAN-name is not including any special characters, just letters, numbers and "-".
    Mind you: the name I am relating to is not necessarily the one you give your Mac in System Preferences > Sharing. It is the name your home router derives from that name. I am using a Fritzbox as a router and DSL modem; and had to access its web interface to check the actual name that my iMac was using to communicate to the web. That's also where I had to change the name back again.
    Don't know why ML caused the name to change in the first place, maybe the whole thing was unrelated and purely incidental to upgrading to 10.8. Using another router your mileage may also vary. You may still give it a try.

  • Scrolling Unbearably SLOW Since Upgrading to Mountain Lion

    I have a LOT of Playlists set up in iTunes, and previously if I were trying to drag and drop a playlist onto my iPod, it was very easy - scrolling acted just like it did in every other program.  However, since upgrading to Mountain Lion recently, it takes FOREVER to drag a Playlist from the bottom of the list all the way up to my iPod to copy the playlist to the iPod.  I can't seem to find the "sweet spot" to make the scrolling MOVE - I drag up to the top of that window and usually it would begin scrolling up the playlists at a normal speed - but now when I point the cursor to the top of that window, it will scroll maybe 2 or 3 playlists and then "stall" - I have to jiggle up and down over and over to get it to move at all!  It literally is taking over 2 minutes to get from the Z's to the top to drop to my iPod!  This can't be right...??
    Is this a bug?  Or is there another way you're supposed to do this?

    How bizarre is that??!!  But yes, it worked for me, too.  Just wish you could hold it instead of having to hit it over and over to keep the scrolling going.
    Another "trick" I found by accident was that if you hold the cursor towards the top like you're trying to scroll up - but then drag it back and forth (left and right) - it causes the upwards scrolling to speed up.

  • Safari has stopped working properly since upgrading to Mountain Lion.  Have parental controls in place and it will not add websites.  Also short cuts at top of tabs now all messed up!

    Since upgrading to mountain lion the other day (from lion) safari has not been working properly.  I have parental controls in place but seem unable to add new web pages to allowed list - wasn't expecting to have to anyway - these are webpages that were working perfectly well on safari prior to upgrade.  Also the shortcuts above the tabs on safari are all now messed up.
    Any advice on how to fix - I am not a computer expert so keep it simple please!
    In the meantime I am having to use Firefox.
    Thanks
    Andrew

    Since upgrading to mountain lion the other day (from lion) safari has not been working properly.  I have parental controls in place but seem unable to add new web pages to allowed list - wasn't expecting to have to anyway - these are webpages that were working perfectly well on safari prior to upgrade.  Also the shortcuts above the tabs on safari are all now messed up.
    Any advice on how to fix - I am not a computer expert so keep it simple please!
    In the meantime I am having to use Firefox.
    Thanks
    Andrew

Maybe you are looking for

  • Why are some channels offered on Select TV service not offered on Premium?

    We get the Premium TV Service (we're in Maryland).  The lower-priced Select service offers a number of channels that are not offered on Premium (but are offered on the higher priced plans).  We're particulary interested in the BBC chanels, but there

  • Scheduling type

    Hi What is scheduling type forward in time and backward in time? How it is different from backward and forward scheduling

  • EP 6.0 User Export Parameter com.sapportals.portal.navigation:uipmode=2

    When exporting users from EP 6.0  under "User Administration > Export/Import" , I have noticed that the following parameter is being generated in the text file  : com.sapportals.portal.navigation:uipmode=2 I've not been able to find any documentation

  • T/X crashes every time I select/tur​n on WiFi

    I have been accessing the internet using my T/X for at least a year.  Now each time I select WiFi, my Palm TX crashes. Soft reboot did nothing, so I made a backup of my unit using NVBackup before starting a Hard Reset.   After Hard Reset of the unit

  • ITunes 8.1.0.51 - Crash on "Update Genius"

    Whenever I go to Update Genius, iTunes crashes. This only happens to me on the new version that has just been released. I've turned it off for the meantime but any ideas? I read a post about it only affecting Dell computers. I have a COMPAQ Presario