IMac MiniDisplay to VGA stops sending signal to Analog Way switcher

We have 3 iMac's, all running Yosemite (10.10.1), that we've recently installed with MiniDisplay to VGA adapters. We've run the VGA's into individual Analog Way switchers that also have Apple TV's and DVD players hooked up to them as well. The issue we're having is that though the Mac sees the "secondary display", the switcher is unable to see signal after waking the iMac from sleep. If we unplug and replug the MiniDisplay port adapter, it will re-detect the displays and the switcher will see signal again.
We are also not able to go up to 1920x1080 even though the switcher supports it and other devices send it.
Any help and/or suggestions would be greatly appreciated.
Thanks,
- James

Apple has a minidisplay to vga adapter which i'm assuming will work.
Yes, it will work fine!
Would it be better to use vga or composite for watching movies and using the computer through the projector?
The iMac is not able to connect via composite cable at all. VGA, Mini Display Port, and HDMI (through adapter) are the only types of cabling that will work. Keep in mind that composite is the absolute WORST video quality you could hope for. Here is the scale from worst to best...
Composite, S Video, Component, VGA, DVI/HDMI/MDP (these last 3 are essentially the same quality)
Is there such thing as male-male vga cable and would it send the signal properly from the imac to the projector?
Yes, they are extremely common, and it will work fine. I would be surprised if there wasn't an extra cable of this sort already in the projector bag. It is standard gear for all of my office's projector sets.
Is there any other way to link these two devices up? Component switch or wireless transmitter?
The best connection you can make with the powerlite 77c is through VGA.

Similar Messages

  • My Mac Pro (2006) has suddenly stopped sending signal to the display monitor.

    My Mac Pro (2006) has suddenly stopped sending signal to the display monitor. It coincided with plugging in an Epson printer via usb - while the system was running. Pretty dumb maybe? Could I have damaged the video card? Anyone ideas? Thanks

    Howdy Le Batch,
    I was looking into the issue you are seeing here, and came across a helpful article for this specific situation. It's named Apple computers: Troubleshooting issues with video on internal or external displays and can be found here:
    When using an external display be sure to check the following:
    If you're using an Apple notebook, confirm the AC power cable or adapter is securely connected to the computer and the cable providing power to the display is also secure. It is always good to have your notebook connected to AC power when an external display is in use.
    Confirm display adapters are fully seated in their respective connections and that they are supported models and for the computer and display. Refer to these articles to assist you with adapter compatibility and further configuration information:
    Monitor and Display Adapter Table
    About Mini DisplayPort to HDMI adapters
    Apple Mini DisplayPort adapters: Frequently asked questions (FAQ)
    Thunderbolt ports and displays: Frequently asked questions (FAQ)
    Remove all display cable extenders, KVM switches, or other like devices and retest to determine if the issue is resolved.
    If more than one video adapter is in use—or "daisy-chained"—troubleshoot by using only one adapter.
    Example: A mini DisplayPort to DVI adapter connected to a DVI to HDMI adapter is an unsupported configuration because there is a series of adapters in use.
    If available, try using a different display and or adapter (or use a different connector by using DVI instead of VGA, for instance).
    Reset the system
    You can reset the Mac's parameter RAM and SMC.Reset the resolutionStart by resetting the Mac's parameter RAM. If the display does not come up, was previously set to an unsupported resolution, and still results in no video:
    Start up in Safe Mode.
    From the Apple () menu, choose System Preferences.
    Choose Displays from the View menu to open the preferences pane.
    Select any resolution and refresh rate that your display supports.
    Restart your computer.
    Regards,
    Sterling

  • Stop sending signal to external display without unplugging the cable

    Stupid question: if I toggle through the display settings (F7), it doesn't seem as if any go to shutting off the external display (like maybe I want to make a change I don't want my audience to see, I would like to shut it off without unplugging, then turn it back on when I'm done). Did I just not toggle through enough? Or is there a different mechanism to accomplish this?
    (I also looked in System Preferences --> Display, but see no command for shutting off the external display once it is connected/detected.)
    Thanks!

    Hi, Phlaug. There is no such setting. But if you use Extended Desktop mode instead of Display Mirroring mode, nothing that appears on your MBP's screen needs to appear on the external display (or projector) that your audience is seeing.
    Instructions from Mac Help, under the Help menu:
    *Setting up multiple displays as an extended desktop*
    If your computer is connected to more than one display or to a TV or projector, you can set them up as a continuous display for your desktop.
    To set up multiple displays as an extended desktop:
    Connect the displays to your computer.
    Connecting multiple displays or a projector
    Open System Preferences, click Displays, and then click Arrangement.
    Open the Display arrangement pane of Displays preferences
    Follow the onscreen instructions.
    You can also show the same image on all the displays connected to your computer. This is called “video mirroring.”
    Setting up multiple displays to show the same image
    If your computer is connected to more than two displays, you can specify that some are mirrored displays and others show the extended desktop. For example, if you have three displays, you can have two displays showing the same information and the third display showing the extended desktop. To set up a combination of displays showing mirrored and extended desktop images, set up the three displays as an extended desktop, and then Option-drag a display icon onto another display icon to mirror the two displays.
    If you are playing a DVD on a television connected to your computer, click the Arrangement button in Displays preferences and move the menu bar to the television. If you don’t see an Arrangement button, your computer is only capable of mirroring (showing the same image on all screens). For more information, see the manual that came with your computer.

  • MacBook not sending signal to external display - was working fine before.

    hi guys, i have a unibody macbook and i've been hooking it up to my tv for almost 2 years now using the mini display port to hdmi adapter and hdmi to my television.
    tonight the macbook randomly stopped sending signals to the tv. i tried two tvs with two different display adapters as well as a DVI monitor.
    the displays are detected in osx but there is just no signal sending to it. anyone have any ideas? did my mini display port just die? i've tried several cables/adapters.

    Hey,
    I just experienced a similar problem as the original poster, except that I'm using a minidisplayport - DVI adapter and not HDMI. Been working fine on my external screen for 2 months now and suddenly the external says no signal?
    Macbook still flashes a blue screen when plugging in the adapter but does not detect the external. Haven't ruled out that the adapter is busted yet, but worked fine earlier.
    I tried resetting the PRAM without any change.
    Any kind of software / hardware problems on the macbook?
    Any thoughts?

  • Connect iMac MiniDisplay port to VGA or composite projector, PLEASE!??

    I have an iMac and an Epson Powerlite 77c projector I am wanting to link up. I need to go from the minidisplay port in the back of the imac to either composite or vga (female) connection. Apple has a minidisplay to vga adapter which i'm assuming will work.
    Epson Projector connections - VGA (female,) Video and audio in (composite), S-video
    iMac display connections- Mini display port
    Would it be better to use vga or composite for watching movies and using the computer through the projector?
    And...if i am thinking of the correct cable i'm also going to need an extension to actually get to the monitor. Since the minidisplay to vga cable is female and so is the vga input on the projector, Is there such thing as male-male vga cable and would it send the signal properly from the imac to the projector?
    Is there any other way to link these two devices up? Component switch or wireless transmitter?
    Thanks

    Apple has a minidisplay to vga adapter which i'm assuming will work.
    Yes, it will work fine!
    Would it be better to use vga or composite for watching movies and using the computer through the projector?
    The iMac is not able to connect via composite cable at all. VGA, Mini Display Port, and HDMI (through adapter) are the only types of cabling that will work. Keep in mind that composite is the absolute WORST video quality you could hope for. Here is the scale from worst to best...
    Composite, S Video, Component, VGA, DVI/HDMI/MDP (these last 3 are essentially the same quality)
    Is there such thing as male-male vga cable and would it send the signal properly from the imac to the projector?
    Yes, they are extremely common, and it will work fine. I would be surprised if there wasn't an extra cable of this sort already in the projector bag. It is standard gear for all of my office's projector sets.
    Is there any other way to link these two devices up? Component switch or wireless transmitter?
    The best connection you can make with the powerlite 77c is through VGA.

  • Airport Time Capsule stop send wireless signal, Airport Time Capsule stop send wireless signal

    After instaling several times, alway after a while the wireless router stop sending the signal, or does not start up like in the morning, especially from a windown computer.
    Out house have several computers in Windows and Mac, iphones and ipads and itouch mac book pro,
    How come the router will not start up after a "night of rest"

    Unfortunately, a solid amber is light is not a good sign.
    Try a complete Factory Default Reset on the Time Capsule using the steps below. This procedure will not affect any of the data that you have stored on the internal hard drive.
    Power off the Time Capsule for 15-20 minutes or longer
    Hold in the reset button on the back of the Time Capsule first, and keep holding for an additional 9-10 seconds while you simultaneously plug the power back in to the Time Capsule
    Release the reset button after the 9-10 hold period and allow a full minute for the Time Capsule to restart
    The Time Capsule light should normally stay solid amber for about 30 seconds and then change to a slow, blinking amber light, indicating that the Time Capsule has been reset and it can now be reconfigured.
    If you try the Factory Default Reset a few times and the light stays solid amber, unfortunately the hard drive has failed, or there is an internal power supply issue with the Time Capsule.
    You should take the Time Capsule to an Apple Store.....if you have one in your area.....or contact Apple Support directly to discuss your options. 
    http://www.apple.com/support/contact/
    If the Time Capsule is out of warranty or not covered by AppleCare, Apple will not offer repairs but there are some shops that specialize in this type of repair. See this link for more details:
    Apple Time Capsule Repairers

  • AirPort Extreme stops sending wifi signal

    I have an AirPort Extreme. It quite frequently (like 2x per month) just stops sending a wifi signal.  The light on the unit is green. As soon as run it through a power cycle it starts working again.  This has been going on for about 6 months but it's really starting to get frustrating. 

    What model is the AE? Actual model number if flat.. otherwise just say tall.. !!
    How does it fit into the network? Is it bridge or router or extend wireless?? You need to give some info.. no info .. we are guessing...more than usual.
    Fix.. hmm... this is sort of feature now.. self-securing wireless.. it turns off to prevent access.
    Fix by replacement..
    Does it drop out on all devices or just your Mac?? If you run Yosemite.. the cause might be there.

  • How to get controls of a vi to send signals more than once

    Hi,
    Recently I designed a rather neat VI that allows the user to quickly switch wiring and ID number characteristics on a certain device.  The inside of the VI is an orchestration of sequences and loops that allows user full control through one control loop that cycles through until the user selects a desired function, for which the loop terminates and performs the function.  After the function is complete, if the user has not pressed "stop", another loop brings the program back to the control loop.
    So the VI works great, but as someone who's been interested in automation, I want to try to take this to the next level.
    My next attempt was to put the finished VI as a sub-VI in a new VI that is meant to automate the user control process on the front panel.  I've attempted to use both a flat sequence and the state machine template to do this, and they work great for automatically pressing buttons when working with property nodes or local variable.  The problem, I've found, is that I don't know how to send signals to the Sub-VI from the connected controls at a constant rate without throwing it into a loop itself, which doesn't work because, of course, the sub-vi runs on it's own set of loops and there will be no iteration increment until the program inside the sub-vi terminates.
    Or, if the VI and it's inputs are left on it's own and I try to write values to the controls of the inputs, I can definitely change button positions, but, looking at the signal flows, no signal will be sent from the connected controls to the sub-vi.
    A second problem is that, due to my use of a program button that latches when pressed, I'm having a tough time trying to manipulate it will local variables or property nodes.  Because of the way it functions, the "value" property nodes shows up as purple and I'm not sure how to make it tap itself to operate how it did in the Sub-VI.
    Thanks in advance,
    Matt

    TeknoAXE wrote:
    ...The inside of the VI is an orchestration of sequences and loops that allows user full control through one control loop that cycles through until the user selects a desired function, for which the loop terminates and performs the function.  After the function is complete, if the user has not pressed "stop", another loop brings the program back to the control loop.
    Well, a tight polling loop is typically not a good design. have you tried the event structure instead?
    TeknoAXE wrote:
    The problem, I've found, is that I don't know how to send signals to the Sub-VI from the connected controls at a constant rate without throwing it into a loop itself, which doesn't work because, of course, the sub-vi runs on it's own set of loops and there will be no iteration increment until the program inside the sub-vi terminates.
    You can wire control references to the subVI and then poll the state of the controls on the toplevel VI via value properties.
    TeknoAXE wrote:
    Or, if the VI and it's inputs are left on it's own and I try to write values to the controls of the inputs, I can definitely change button positions, but, looking at the signal flows, no signal will be sent from the connected controls to the sub-vi.
    Of course you need to call the subVI from a parallel loop (for example) so other parts of the code don't get blocked.
    TeknoAXE wrote:
    A second problem is that, due to my use of a program button that latches when pressed, I'm having a tough time trying to manipulate it will local variables or property nodes.  Because of the way it functions, the "value" property nodes shows up as purple and I'm not sure how to make it tap itself to operate how it did in the Sub-VI.
    Latch booleans are not compatible with locals and value properties. A latch action boolean turns true until it is read by the code. If you were allowed to read (and reset it) it from multiple locations and via multiple mechanisms, you would get completely unpredictable code. You can always use switch action booleans and simulate latch action as needed using e.g. local variables.
    It is difficult to give more specific comments without seeing the code. What are the subVIs doing? Are they interactive too?
    If you don't mind attach your code and we will give more specific advice.
    LabVIEW Champion . Do more with less code and in less time .

  • How do I set up LiveRig or TouchOSC with Mainstage 2.2.2? Both apps send signals but none are received by Mainstage and both the ipad 3 (6.1) and macbook pro (10.7.5) see each other via WIFI?

    As I said before both app's send signals but none are received by Mainstage and both the ipad 3 (6.1) and macbook pro (10.7.5) see each other via WIFI on the network set up, which I think I did right. I have tried MIDI Disigner and Mainstage shows MIDI activiti, what can I be doing wrong?
    Thanx in advance.

    I agree anti-relay can be using UBE feature. However, there is serious problem in reject the spam mail. My nms is using UBE feature to stop spam mail. According to the work flow of the UBE, the mail is received by nms completely and UBE is going to invesgate the mail address. Although UBE can stop the spam mail, the spam mail have a trouble in returning the mail to the sender. The reason is the sender address is usually not existed in the world. That will cause a lot of mail waiting in the mail queue.
    In my experience, do not use UBE for anti-relay.

  • After installing the new Yosemite OS on my iMac I can no longer send email. I can receive email, but not send. I use gmail and can send email on the gmail (google) site, but not on "mail" on my iMac. Any others with this problem? What should we do?

    After installing the new Yosemite OS on my iMac I can no longer send email. I can receive email, but not send. I use gmail and can send email on the gmail (google) site, but not on "mail" on my iMac. Any others with this problem? What should we do?

    My gmail, which is correctly configured for Mail with gmail SMTP and Google IMAP, works for awhile on Mail, which I leave open while working on other applications. But several times a day I get msg from Google: "We recently blocked a sign-in attempt to your Google Account" . . . and requiring me to verify my account details, re-enter passwords, confirm security settings (or change them from "disable" to "enable less secure methods" and so on). In Mail I also have tried "taking all accounts online", and re-entering my gmail password inside Mail account settings. These steps successfully re-set comms between gmail and Mail ... for awhile, then it happens again. Enough occurrences over a work day that I just quit Mail and revert to accessing gmail directly. Apple Care advisor and an Apple knowledge base article say that Apple can't deal with this, as gmail is third-party app, and they refer me to gmail, and so far I've found nothing helpful there.
    From today I also have several instances of a window saying "Mail has unexpectedly closed" and asking me to Re-open it.
    I also use Yahoo mail, which stops working with Mac Mail at the same time as gmail, but I do not receive notices to re-verify from Yahoo.
    I recently upgraded from Mavericks to Yosemite. The Mail problem happened occasionally with Mavericks but is far more frequent with Yosemite.

  • IMac27' for PC Screen ( MiniDisplay Port - VGA ) issue

    Hi everyone,
    I want to use mi 2009Late iMac27' as external display. I use a MiniDisplay Port to VGA adapter for conecting the iMac and the PC via VGAs
    The problems appears when i connect them and nothing happends, only a "Blue Screen" ( like when you change the resolution ) and nothing more. CMD + F2 does nothing and i dont know what can i do for fix this...
    Anyone can help me?
    Thanks and sorry about my poor english =(

    Hi BDAqua,
    the PC graphic card has not MiniDisplay Port...
    So if i want to use mi iMac27' as screen the pc has to have at least a MiniDisplay Port, no? That's the only way?
    Can the graphic card use a adaptor for this task ( Like VGA - MiniDisplay Port adapter )? My graphic card has DVI and HDMI ports for more info.
    Thanks for the help, you heal me a big headache

  • My mail has stopped sending. I can receive but I can't send.

    My mail has stopped sending, even though I can still send via my iPod. Mail on my iMac can receive but not send. I've tried deleting the talktalk account and starting a fresh, but it's not made any difference. This has just started to happen, I was sending quite happily until now. Does anyone have a solution?
    I get a message saying: Cannot send message using the server smtp.talktalk.net:(followed by my email address)

    I would think that at the very LEAST you would be eligible for a COMPLETE refund of ALL charges for insurance paid thru Verizon!  They were charging you for something you were ineligible for!  Verizon has a record of whether or not you purchased the phone from them - otherwise how could they deny the claim!
    It very sad to see how customer service and customer satisfaction has been lost here ... !

  • Can receive mail via TalktalkMy mail has stopped sending,

    My mail has stopped sending, even though I can still send via my PC   Mail on my Macbook Pro can receive but not send. . This has just started to happen, I was sending quite happily until now.
    I get a message saying: Cannot send message using the server smtp.talktalk.net:(followed by my email address)
    All mail setting seem to be as before problem started
    Does anyone have a solution as getting desparate

    So? What's your problem? BTW, you show SL as the OS, but mention installing Mavs. Very confusing.
    27" i7 iMac (Mid 2011) refurb, OS X Yo (10.10.1), Mavs, ML & SL, G4 450 MP w/10.5 & 9.2.2

  • Mail has stopped sending all mail.  Insist that outgoing servers are offline.  Have checked all setting preferences for outgoing servers including user name and password.

    Mail has stopped sending all email.  Says all outgoing servers are offline and server certificate are invalid.  Have gone into preferences/accounts/edit SMTP servers and reentered all data including user name and password.
    Have had  this happen before and had to upgrade to Maverick to cure it.

    So? What's your problem? BTW, you show SL as the OS, but mention installing Mavs. Very confusing.
    27" i7 iMac (Mid 2011) refurb, OS X Yo (10.10.1), Mavs, ML & SL, G4 450 MP w/10.5 & 9.2.2

  • TS3276 I have a recovering email, that wont stop sending itself back to me, i cannot recive any new emails????

    I have a recovering email that will not stop sending itself back to me, and i cannot receive any emails

    hi guys,
    I had already deleted all reference to the hotmail account in question from the keychain access app, I have also tried to delete and re-instal the account details from within mail. The icon in the side bar dissapears but when I go to Add Account, the old account details are in the new account box. I then input my new password but am told that the server does not recognise it. If I access hotmail via google on the iMac I can get into my account with no problems. I am thinking there must be some other form of security system within the mac software that is blocking the new password. This is driving me nuts. I have been trying to resolve this for the last two days. Thank you for your advise anyway.

Maybe you are looking for