IMac :: Switch Between Displayport Inputs / Using External Display Screen?
Mar 17, 2009
I have a MacBook Pro. I see that the new iMacs have a mini displayport input so that the 27" screen can be used with my MacBook Pro. I'm wondering how this works? Since there is obviously no button to push, how exactly do you switch between the iMac and the MacBook Pro displaying on-screen?
On my 2008 24inch iMac the screen has a problem ( dead pixels ) and I will get it replaced in the future , in the mean time I have a very nice large external monitor connected to the iMac which I use ok, what I am looking for is a way at first when booting up , to be able to see both the iMac's screen and the external monitors screen , then some how shut off / make blank the iMacs screen only leaving the external monitor on ?
On my 2008 24inch iMac the screen has a problem ( dead pixels ) and I will get it replaced in the future , in the mean time I have a very nice large external monitor connected to the iMac which I use ok, what I am looking for is a way at first when booting up , to be able to see both the iMac's screen and the external monitors screen, then some how shut off / make blank the iMacs screen only leaving the external monitor on ?
I had not used my external monitor in the last several weeks. I believe there have been a few OSX Lion updates since the last time I used the external monitor. I had installed all the updates prior to connecting my external monitor again. However, a few days ago I tried to connect the external monitor and all I get is a "No Signal" message on my external monitor. The Mini DisplayPort to HDMI works on my LCD TV, so I know the MDP works. I have also replaced the MDP-to-DVI cord and the external display still doesn't work.
I connected the external monitor to another computer running Snow Leopard and the external monitor works. So, the external monitor does work.
I have seen a few posts aboout this, but nobody seems to have a solution that works or is directly on point to my issue. I have tried to use all the scenarios for plugging in the external monitor and external monitor power. I tried to reboot the laptop with and withoout the external monitor connected. Same thing with the exteernal monitor plugged in and no power, etc. Nothing works. I have tried to repeatedly turn the external monitor on and off while connected to the MacBook. Again, that doesn't work. Here is what I am running:
MacBook, Aluminum 13" Late 2008 OSX 10.7.3 NVIDIA GeForce 9400M
Info: MacBook (13-inch Aluminum Late 2008), Mac OS X (10.7.3)
I have a presentation tomorrow and need to hook up my MBP to the projector in class. I bought an Apple Mini Displayport to DVI cable, and a DVI to DVI cable. I thought this would be the case, but come to find out the system does not support DVI. So I had to run to Best buy to get a DVI to VGA cable. I tried out the MDP > DVI > VGA rig on my external monitor and got nothing. The screen on my MBP responded by turning blue for a second and then back to normal...but the monitor said "No Signal". Is this some jargon with DVI-D and DVI-I? I need to know by tomorrow morning if I have to run back to the Apple Store and get a Mini Displayport to VGA cable.
I have recently bought a 13" Macbook Pro and wanted to hook up an external display (an oldish acer 19"). I have a Mini Displayport to DVI adapter hooked up to a DVI -VGA adapter which leads to the display. I haven't got it to work yet. I have followed advice about closing the lid and using usb mouse and keyboard with no luck. The only thing that happens is that the screen on the laptop flashes blue for about a second after plugging in the Mini DisplayPort adapter.
We have an iMac G5 running 10.4.11 which developed some nasty colour banding down the screen and have now plugged in an external display. How can you turn off the iMac display so it only outputs through the external monitor?
I have a 27" imac and have been using an apple led cinema display with it. I have had no problems with the display until today. Yesterday I installed windows 7 via bootcamp and had some trouble with the second display being detected but after downloading all of the bootcamp updates it worked fine. Today I restart my computer back into OSX and the display does not work. I tried resetting the PRam or whatever but that didnt do anything. When I go to system preferences > display there is no longer an option to detect display and there are no longer options to change the screen resolution.
I spoke with an apple tech who has me installing an update but I dont think she really knew what was going on and I doubt this will work. When I reboot back into the windows partition the display works during start up and I see the windows logo. So I dont think its a hardware issue (also the display still works fine with my macbook pro). But as soon as startup finishes I get a black screen. Under the control panel windows still recognizes that there is a 2nd display attached and you can still drag items over to the other screen, I just cant see anything. All black.
My external display (HP w2207) seems to conflict with my MacBook Pro (15 inch Retina display, early 2013) since I upgraded MacBook OS to 10.9.4.The external display works at initial boot of Mac but does not work after OS sleeps and I attempt to awaken, and while the external display is not waking, the Retina display flashes through different screen views, which only partially reflect my normal screen, or do not reflect my normal screen at all.
Hoping someone can help - my imac (approx 15-18 months old , intel) won't start.
Last night on shutting down DPP (canon Digital image software) was hanging and system asked me if I wanted to force quit it...sadly I had switched off my bluetooth mouse and , as usually once mouse turned off switching it back on it never re connects - why did I buy the bletooth mouse and keyboard ?, so I could not confirm yes force quit - is there no way of selecting with keyboard like there is in windows ?
So I switched off at power switch. Tried to re switch on - grey screen came up, apple logo, the little timer circle but after a while timer circle stopped and nothing further happened.
have tried several more times and now don't even get timer.
I just purchased a 23" monitor to replace my iMacs 17" display (since it has a nasty crack in one of the corners). I hooked it up fine and all, but the displays are linked, allowing me to hover the mouse to the iMac's display which I find annoying most of the time.
Is there a way to make the iMac display zone out and just use the external by itself?
we are trying to hook up our TV as a secondary monitor (for hulu, netflix, etc) but it defaults as the primary monitor. We would like to keep the imac as the primary monitor, and have the TV as a secondary, but cannot figure out how to do it! The only way we can get the imac back to primary status is if we use mirror mode. Once we take it off mirror mode, the TV becomes the primary monitor again, and there appears to be no way of switching it in OSX display preferences.
I've done similar hookups with my laptop, and the TV defaults as the secondary monitor. Why isn't this happening with our iMac? Any ideas?
I'm interested in the new iMac but could not work with a glossy display. Can anyone share their experiences of using the iMac with an external display? In one respect it seems like a waste to have two monitors but the base model costs little more than the maxed out Mini and seems like the better option.
I would be interested in seeing photos of any setups featuring the iMac and an external display.
Also, is there a way to turn off the iMac display when using an external display?
I just got a displayport to dual-link dvi adapter for my 2011 mac mini. Using a HP LP3065 display, and it keeps flickering! Is there something I can do to make it stop? Does the adapter have firmware that can be updated?
I'm trying to using my iMac wireless keyboad for my macbook pro while my iMac is in external display mode but I can't get the keyboad to connect. I've tried disconnecting the wireless keyboard from my iMac but it won't go into target display mode without the keyboad. Can I used my iMac wireless keyboard with my Macbook pro while my iMac is being used as an external display?
Info: MacBook Pro (15-inch Late 2011), Mac OS X (10.7.4), Main Computer
I own a MBP 13 that I wish to connect with my Acer external mobitor. I bought a miniDisplayport to HDMI [male] cable for this purpose. Now the problem I am facing is that even though my 40" Samsung TV detects the MBP and works as an extended monitor, the MBP fails to detect the Acer monitor. However, I currently use the Acer monitor with my Mac Mini, Tata Sky+ set top box and also my Playstation 3
My Dell u2711 is my primary display. Sometimes I wake up the macbook out of sleep mode and forget to have the lid shut. Consequently the Macbook screen comes on as well. Everything is working as it should but I am curious is there a quick way to switch the Macbook display on and off with the setup I have described?
AppleScript perhaps - to allow either auto-switching of the main display, or enabling 'Mirror Displays', when Front Row starts?
Normally I have my MBP setup in extended desktop for when I connect my external monitor or connect to my TV (DVI->HDMI adaptor) for watching BBC iPlayer etc., however I want FR to run on the external monitor/TV if one is detected.
Had been using the Mini Displayport > DVI adapter just fine with both HDTV and Dell monitor, BUT then all output has stopped completely!
No monitor is detected by the laptop (although the display does blink blue, as if it had detected it), tried different cables, different displays, using the Displayport firmware update, speaking to Apple, deleting the com.apple..plist files, etc
Edit: it also doesn't work in XP on Bootcamp!!!?
None have worked even a bit!.. Also read lots of forum posts of similar problems, but I can't find a solution that works!
I have the mini display port plugged in and a vga cable from the imac to my external monitor. I should just be able to turn the monitor on and it work but the imac doesn't detect it and it just comes up as a black screen.
I have an iBook G4 which I want to use with a widescreen external display. I am not interested in gaming or doing anything fancy just surfing the web and working on documents and maybe looking at movies. I already have a hack that enables me to use a regular display which doesn't mirror the iBook screen. I just wondered whether I would encounter problems using a wide screen display and what the maximum resolution I should look for.
i was in a car accident where my macbook was in a case, in a bad in my back seat. and it shattered the screen. of course my care protection plan wont cover it. so i have a external monitor that i am trying to use to navigate the computer. with the correct adapter.
i was hoping there is a way to detect and use the monitor....
this would be extremely easy if i could actually see the computer screen on my laptop... but the entire thing is solid white because of the crack. so i need keyboard shortcuts, or some way to control my computer using my macbook pro connected through firewire.
i wish i would have set up the file sharing, and remote management sharing before the accident. would have come in handy now. but i didn't.