Sound from Cinema Display

My Cinema Display has no sound.  Sound reverted to the internal speaker in my Mac Pro.  I went to change the sound output in Preferences and the LED Cinema Display is not listed as an Output option.  Any thoughts?

If you open Audio Midi Setup and click the little question mark in the upper right to get the Help info for Audio Midi Setup, and then search for "combining audio devices", you will get the following info (repeated here for convenience - click it to actually be able to read it) explaining aggregates:

Similar Messages

  • Sound from cinema display dual monitors?

    Hey friends,
    I can only get sound to come out of one monitor. I can toggle one or the other using System Preferences -- but is there a way to use both simultaneously?
    thank you

    If you open Audio Midi Setup and click the little question mark in the upper right to get the Help info for Audio Midi Setup, and then search for "combining audio devices", you will get the following info (repeated here for convenience - click it to actually be able to read it) explaining aggregates:

  • Macbook Pro dark screen after disconnecting from Cinema Display

    Dear all,
    the issue I am having:
    - after disconnecting from Cinema display (having first put my Macbook Pro in "sleep" mode) I just ca't make the Macbook pro scren show anything....black display
    - but is it really asleep? NO!!! It just STILL believes it's connected to the Cinema Display
    That's what I though was happening, so I thought: "if I now plug in the thunderbolt-to-VGA dongle that I use for the videoprojector then the screen might come back... and.... Voilá! It comes back, BUT starts flickering until in the end it just dissappears....
    I can reproduce the error all the time. Worse than that: a reboot does not help at all.
    Looks like there is an internal hardware switch that must be left "engaged" and then the Mac just believes it is connected to an External screen and sends the signal though the thuderbolt port instead of through the screen!!!
    WEIRD error/bug or whatever!!
    I have no idea how to make this reach the Apple guys.... I tried to report a Bug but they asked me to join in as Apple developer which I just can't do (for working issues).
    Can anyone tell me if they have had this problem, and whether Apple is taking care of it?
    (this reminds me of an issue with an internal switch with the headphones in my old MacBook Pro.... after disconnecting the headphones, the internal switch was not being disengaged, so sound would NEVER come out as it was being sent to the headphones instead of to the speakers... Same problem here but with the Image??? :-((( )
    Thanks a lot.
    BTW: here go my Mac characteristics:
    Mac OSX 10.8.2
      Model Name:          MacBook Pro
      Model Identifier:          MacBookPro10,1
      Processor Name:          Intel Core i7
      Processor Speed:          2.6 GHz
      Number of Processors:          1
      Total Number of Cores:          4
      L2 Cache (per Core):          256 KB
      L3 Cache:          6 MB
      Memory:          8 GB
      Boot ROM Version:          MBP101.00EE.B02
      SMC Version (system):          2.3f32
    Intel HD Graphics 4000:
      Chipset Model:          Intel HD Graphics 4000
      Type:          GPU
      Bus:          Built-In
      VRAM (Total):          512 MB
      Vendor:          Intel (0x8086)
      Device ID:          0x0166
      Revision ID:          0x0009
      gMux Version:          3.2.19 [3.2.8]
    MacBook Pro:
      Vendor Name:          Apple, Inc.
      Device Name:          Macintosh
      UID:          0x0001000D11C0EF80
      Firmware Version:          11.1
      Port:
      Status:          Connected
      Link Status:          2
      Link Controller Firmware Version:          0.11.4
      Port:
      Status:          No devices connected
      Link Status:          7
      Link Controller Firmware Version:          0.11.4

    Sometimes I experience the same after disconnecting my 24" display (in seldom cases, the mouse cursor is not painted correctly, as well).
    Can you check - when it happens - if in System Profiler > Hardware > Graphic > Quartz Extreme is listed as 'supported'. I found it to be 'not supported' when the scrolling and display behaves strangly. Also the Menu Bar is not transparent any more.
    Next to rebooting, logout and login again fixed the issue for me. But I am also looking for a better fix/explanation.
    marcus

  • After installing Mountain Lion my MacBookPro crashes after disconnecting from Cinema Display

    Ever since I installed Mountain Lion on my 15" MacBookPro (early 2011 first with Tunderbolt connector) it crashes after disconnecting from Cinema display (this Cinema does not have Thunderbolt but mini display port). It woked fine under Lion.
    This crash occurs in following situation:
    MacBookPro is in closed clam shell operation. When Cinema display is still connected, I put MacBookPro into sleep. Then I disconnect Cinema display mini diplay connector from Thuderbotl port.
    When I get home and open MacBookPro it is in deep kernel crash.
    It happens every time.
    Any ideas how to fix this?
    Thanks
    Rich

    You can bypass GateKeeper.

  • Some sound from MBP others from Cinema Display

    I have a MBP connected to a 24" Cinema Display and use with the lid closed.
    While I have the Sound Preference set to Cinema Display, some sounds, new Mail for example, comes from the MBP speakers not the Cinema Display.
    Is there a way to have all sounds, including such alerts, be played through the Cinema Display speakers.
    Thanks in advance for any tips.

    In the Sound pane of System Preferences, click the Sound Effects tab and opt to have sound effects played "through the selected output device" instead of through the internal speakers.

  • Disconnecting MacBookPro from Cinema Display

    Here's a stupid question that appears to be too elementary to address in the documentation: When I want to disconnect my MacBookPro from the Cinema Display, do I simply remove the connections or do I have to shut the laptop down first?
    Related stupid question: when I return with my laptop, can I simply plug in the Cinema connections, or does the laptop have to be powered down?
    Thanks.

    You don't have to shut it down.

  • MacBook Pro wakes up when unplugging usb from cinema display

    Hi all,
    I have a 30" cinema display at work and a 23" at home which I use with my macbook pro. At work, I use a usb keyboard which stays plugged into the monitor. At home, I have a wireless keyboard and a usb printer plugged into the monitor. Thus in both cases, I plug the usb cable from the display into my laptop. I typically leave the MBP open so as to have the main display and the cinema display at the same time. When I leave home or work, I close to MBP to put it to sleep. However, upon unplugging the display and especially its usb cable, the laptop invariably wakes up, which is annoying.
    I tried leaving the MPB closed and putting it to sleep with the display's on/off button. Same behavior.
    Is there a setting to prevent usb 'signals' from waking up the computer? Should I proceed differently?
    Any advice would be greatly appreciated. Thanks in advance.

    I know this question is answered, but I didn't want to create another thread to discuss the same topic.
    I think this issue is rooted in the Cinema Display being attached to port 3 of it's own internal hub. This is to allow the display dimming, the power button that controls the sleep/wake of the laptop, etc. I just got my 30" cinema display a week or two ago, and before that was using an HP IPS LCD panel (24") that also had an integrated USB hub. I have the same devices attached too --USB hard drive for time machine, and keyboard (mighty mouse plugged in to keyboard). When unplugging the cable to the HP monitor's hub, the macbook would not wake up. Just with the Apple display.
    The problem with the hack/bandaid/workaround suggested is that to unplug the USB cable before sleeping the laptop, I need to open disk utility and eject the external drive first, else the system will complain. When the laptop goes to sleep, it runs a script (that I wrote) to eject the drive before sleeping, thus no error messages.
    Apple really needs to work on making "docking" work right. Until then, I'm using a Belkin USB hub which doesn't wake up the mac when unplugging it.

  • Macbook crash on sleep after disconnection from cinema display

    Hello,
    I bought a black macbook core 2 duo a few months back as a replacement for a 1.5 GHz 12" powerbook G4, and I'm beginning to wonder if I made a terrible mistake as the Macbook frequently crashes on sleep which has caused a major disruption to the way I use my computer.
    My work pattern involves pulling the computer out of its bag and opening it for between a few minutes and a couple of hours, before putting it back to sleep by closing it and shoving it back in its bag again, usually in a hurry, and usually several times each day. If I'm working at my desk, I pull it out of its bag, plug a keyboard, mouse and cinema display into it before waking it in lid-closed mode via the keyboard or mouse. I later sleep it via the power key, before immediately disconnecting the cables and putting it back in its bag.
    The powerbook used to cope with this admirably, sometimes for two months at a stretch between restarts, and always with many applications and windows open. I had learned to expect that when I open the lid of my computer everything is there just as I left it, and more importantly that I didn't need to worry about saving everything before closing the lid.
    The Macbook frequently crashes on sleep (regardless of whether I close the lid, use the key or menu or leave it until it sleeps itself), and have I narrowed it down to something that usually happens on one of the first few sleeps after I disconnect the cinema display. The macbook's backlight goes out on sleep but the display does not switch off (it can be seen, frozen as it was, if a light is shone on the display) nor the hard disk spin down, and the only response of any sort I can get is I can switch the white LED on and off by opening and closing the lid. This behaviour has always been the same regardless of whether safe sleep is enabled or not, although I have disabled safe sleep as I do not have the time or inclination to sit around waiting for 15 seconds for the disk to stop spinning each time I close the lid.
    My question is, is there something wrong with my computer or is this normal for Macbooks where an external display is used? And if it is normal for macbooks is it something that is likely to resolve itself with future MacOs or firmware updates, or is it more fundamental than that?

    Hello again,
    It is hard to suggest something to do in this case, since intermittent issues are really difficult to diagnose. If I were you, I might try doing an Archive and Install from the install dvd that came with your macbook, as well as verifying the drive using Disk Utility on the install dvd. These are just suggestions and I don't know if they will change anything, but at least Apple may get more info out of knowing these were done to try and resolve the issue. If Archiving and Installing doesn't fix the problem (an OS software problem) and disk utility doesn't report any problems, it most likely warrants a trip to Apple. You definitely shouldn't have to put up with worrying about whether your computer will work or not every time you close the lid.

  • Cannot turn on computer from Cinema Display.  Why not?

    I have a G4 and recently bought a new 20" Cinema Display. To hook up I needed an ADC to DVI Adapter. Everything works except:
    1) I cannot turn on the computer from the Display. I can only do it from the computer power button, whereas I could with my older Studio Display. Why is this?
    2) If I put the computer to sleep, I can't wake it up with the touch of a button on the keyboard. Nor will it wake up by touching the Display power button. Once again it will only wake up if I press the computer power button. Is this normal?
    3) If I put the computer to sleep by pressing the Display power button, nothing will wake up the computer. It stays asleep. What the heck is going on here?

    You have 14 days from the date of purchase to return your computer with no questions asked.
    Why are you wasting time on a message board w/a spanking new Mac?  You should be ON THE PHONE with Apple first thing!

  • Mac mini power from cinema display

    Is it possible to power the mini from the mag-safe connector provided by cinema display?

    Which is weird.. I thought this would be a no brianer of a way to do it.. let parts etc for apple and a path new user.. granted not a cost effective one, but people are weird sometimes
    I figured it would use the 85w laptop adapter

  • Daisy chain monitor from cinema display MacBook Air 5,2

    I know the Mid-2012 MacBook Air is capable of 2 external displays as described here.
    The monitor works when plugged directly into the MBA, but not when daisy chained from the back of the cinema display.
    It's a dell monitor, and I'm using an Apple Thunderbolt-VGA adaptor.
    Is there something I'm missing? Thanks!

    As far as my question itself -- why does this happen? Has anybody had this issue on Lion and had it resolved on Mountain Lion?

  • Plugging USB from cinema display to dual-link DVI adapter shuts-off adapter

    i have a macbookpro and 30" cinema display. i had been using the $100 minidisplayport-to-duallinkDVI adapter to connect my monitor but now whenever i plug the USB from the monitor into the adapter (to use the monitor as a USB hub) it  kills the power to the monitor! does anyone know what the problem is here? it seems to have gotten worse and worse over time and now i cannot ever get it to work no matter how many times i replug things... causing my studio to be quite disconnected. does anyone have any information on this issue?

    There just so much power that can be delivered to the usb buss.  You probably need a powered usb hub.

  • Powering up from Cinema display

    Hi all,
    Ive checked other posts about this and it seems it is possible for me to power up the whole Mac using the cinema buttons on the side. However in my system display preference it only gives me the option of:
    -power up (just) the display
    -putting the system to sleep
    and - do nothing.
    Theres nothing there that gives me the option to turn my WHOLE system ON/OFF. Is there anywhere else I should look at? My cpu is positioned under the table because Im a bit short of space so its always a hassle to powerup the machine.
    Thanks a lot in advance.
    Cheers

    Computer power up from the display is no longer an option. This was made possible by the "old style" propritary ADC connector which has been replaced by a more standard DVI connector with USB and FW breakouts.
    DD

  • No sound from Thunderbolt Display after update to OS X 10.9.3

    So I updated to 10.9.3 this morning only to find there is no sound coming from my Thunderbolt Display after installation. Sound is now only audible from my MacBook Pro (late 2011). Also, see image below, there is no sign of any connected inputs other than my MBP now. I've shutdown and restarted a number of times, but still no audio from the display.
    Really starting to wonder why it's worth spending so much on Apple products now...

    I sent my TB Display in for repair. They had it almost a week and didn't find anything wrong with it. Instead they took in my MacBook Pro and replaced the logic board (2nd time it had been replaced) and the Display seems to be working fine now.
    ...except that for using 3rd party video conf apps, those apps only pick up the MBP camera (even though i try to change settings in app), not the TBD camera... but FaceTime and Skype find the TBD camera.
    Strange.
    Nickkett wrote:
    I Bought all Apple to be 100% compatible and "Just Work"...
    I completely agree with that sentiment. That's why we pay through the nose for their products, so it feels very bad when they don't just work.

  • Mac Pro boot sound on Cinema display

    Hey guys,
    Is it possible to run the Mac pro boot sound on my cinema display instead of the Mac pro's build in speakers?
    My macbook sounds more agressive than that Mac badboy .
    thanks!
    -Sam

    I think this has been a problem since the beige G3 and an early speaker-equipped Mac display.
    The startup chime is produced long, long before the display is configured to accept the data and make it into speaker noises. It is near impossible to make the startup chime come out the display speakers.

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