Mac Mini :: External Display Is Connected When Powered Off - How To Know About It
Aug 16, 2010
I have a 2009 Mac Mini connected to a 22" LG monitor via Mini-DVI port and it's also connected to a 50" Pioneer Plasma (in the next room) via Mini-Displayport. Everything works perfect except that when I turn off the Pioneer Plasma, my mouse can still scroll over from the LG monitor to the Plasma.
I've also noticed that my screensaver is laggy even when the Plasma is turned off (usually that happens when it's drawing the screensaver on both screens) so it must still be sending a video signal out of the Mini Displayport.
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Sep 8, 2014
I bought a MBA 13" last month and now I'm trying to connect an external monitor through a Mini Display Port-to-HDMI adapter and most of the times the display shows a message "No signal detected"...
I've tried all the possible combinations between the MAC and the Monitor but it would seem a random matter.
Info:
MacBook Air (13-inch Mid 2012), Mavericks 10.9.4
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Mar 16, 2009
As I am looking around at all the usb 2.5" drives I have laying around, I was wondering if there is a limit to the number of bus powered drives that the Mac Mini could run at one time.
I have never run more than one self powered drive on a computer before - so I was wondering if there was a limit that the Firewire/USB bus power can support.
Ideally I would love to be able to run one bus powered firewire 800 drive, and three usb bus powered drives - I'm just not sure if that is possible or advisable...
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May 21, 2010
I hooked up my macbook pro to a mini display port to a dvi -> hdmi to my tv no problem. However, when I hooked up the mini display -> dell monitor, I get nothing. The screen is black. The weird thing is that my macbook pro recognizes that a second monitor is plugged in... it just won't display anything
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Jun 16, 2009
I have a mid-late 2008 MacBook connected to a Dell U2211H monitor using a Mini DisplayPort -> VGA connection.
When I use 1920x1080, I only get 60 Hz and the display is a fuzzy (text). Also, there are black bars. Why?
Will my issues be solved using a Mini DisplayPort -> DVI connection? Or should I exchange it for the 2209?
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Mar 28, 2009
Just a warning, I bought a Mac Mini (2009) and wanted it to hook it up to my TV. My TV does not have HDMI or DVI inputs so I bought a Mini DVI to Video adapter from Apple.But I could not get it to work, then I googled for it and it seems this adapter does not work with 2009 Mac's since it does not output an analog signal anymore!
URL
So anyone that wants to hook up his new Mac to an older TV set with the Video adapter, you are warned.I guess i'll have to buy a Mini-DVI to VGA adapter and then a VGA to SVIDEO converter..
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Jun 15, 2012
My Mac mini is connected to a Samsung widescreen (1360x768) display using mini port to VGA adapter. When starting, the both sides of the screen is not used, left black. Mac mini thinks the display is a 4:3 display, but does not recognize this as a 16:9 display. What can I do?
Info:
Mac mini, Mac OS X (10.7.4)
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Jun 27, 2012
i currently have my mac mini server Mid 2011 hooked up to my 27' inch apple cinema display and it flickers once a while.
Info:
Mac mini, Mac OS X (10.7.4), Connected to 27' LED Cinema Display
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Dec 2, 2014
Macbook air 2014 model screen flickers when ever it is connected to minidisplay port to vga adapter?
Info:
MacBook Air (13-inch Mid 2013), OS X Yosemite (10.10.1)
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Sep 26, 2010
I have a MacBook Pro 13'' (mid 09) and another MacBook pro 15'' (early 09). The problem below applies to both of them.
I often use my 15'' mbp connected to a usb keyboard, mouse, display etc. Basically it is used as a stationary computer that can be easily moved (to work/school etc). This is my main laptop so this is where I noticed the problem first. Sometimes when just using the computer as normal (using itunes, opera, adium etc) the OS X will just suddenly become very sluggish and unresponsive.
However it is not OS X itself, but the GUI! Example: if I move my mouse over the dock, it wont animate. If I try to do any finder related action the GUI response is way of and if I try to do something in the menubar I have to hold left click, if I let go it just closes the menu.
This goes for the application folder as well (I have it as a list). Normally it will just funtion as normal but when this problem occurs I have cant let go of the mouse button when moving through the menus because then the menu closes!
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Jun 12, 2010
I use my MBP connected to a Dell U2410 and everything has been ok for the last 5 months or so (I got the MBP around the beginning of Feb.). However recently, my display will start flickering (blinking) a blue screen up to the point that it is completely unusable. Often if I simply unplug the mini displayport from the mbp and plug it back in again, everything goes back to normal for awhile. Just now I was able, between flickers, to switch from the integrated graphics card to the dedicated (?) graphics card. Although I did get a few flickers logging back in, so far it's been ok.
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Jul 31, 2010
When I connect my 13" MBP to an external display to watch a movie etc. the external display seems to be darker than it would appear if I was watching on my MBP. Is there anything I can do to make things brighter (other than turning the brightness up on my TV)?
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Dec 11, 2010
Just got my new 2.8 with 5870. From the start it gave me some trouble getting it to turn on. I kept trying different plugs and such throughout the house and randomly I got it on. It was working good but I noticed that waking it from sleep the machine will click and the sleep light goes out and a red led behind the grill comes on briefly. I try pushing the power button to hear another click and the red led flashes. These problems seem intermittent and sometimes it will sleep fine. Im using 2 acer monitors connected via 2 vga-mini display adaptors.
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Apr 3, 2009
Can anyone suggest what should I do with Mac Mini 1,83 GHz Intel Core 2 Duo and my two new Dell monitors?I tried them using their standard VGI cables connected to a VGI port on a Mac Mini - both are dead. Not a single flicker.
My Mac bought from a trusted friend and acts as a practically new machine - but not with my monitors.
P.S. I went through several Mac-related forums and there's abundance of issues with "alien" monitors.
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Apr 25, 2009
I am about to buy a new 24" iMac. I currently have a Dell 2408WFP 1920*1200 display which I would like to use as a second display for the iMac.
Which Mini Dislpayport to DVI adapter do I need? Single-Link or Dual-Link?
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Nov 21, 2010
WITHOUT closing the lid, because i like using the touchpad. i know that you can turn the brightness all the way down, but sometimes windows from the main screen randomly open on the other display. and it also slows down performance. i want to turn off the 13" screen as if the lid was closed. that way, the mac doesn't even see it.
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May 7, 2010
Well my unibody macbook display decided to screw up last night, it was working fine last night no problem. Connected to a external monitor. I fell asleep last night with front row left on, obviously it went to sleep and then I woke up and the screen was black. Now the LED lights are working, my external display is also working. The display settings recognize a screen being present (when I click detect displays and gather windows - 2 windows appear). Ive reset PRAM, SMC, reseated the RAM, control+shift+eject (which just made the screen flicker a little after turning it back on) and Im out of ideas. Its out of warranty and about about 18months old.
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Jun 25, 2014
I have a Late 2011 MBP, just recently I also go an Xbox and wanted to hook it up to my external display that I have been using for a long time with no issues. I went and bought this: URL....to be able to easily switch between the two inputs. The xbox works fine, however when I view my Macs input the screen flickers a static image very frequently.Â
I know what you're thinking, it's probably an issue with either a cable, or the device. But when I boot into Windows via Bootcamp with the same exact setup, there is no flicker at all. The display is a dell s2440L, the HDMI adapter is a rocket fish.Â
Here are the troubleshooting steps I have tried:Â Resetting PRAM/SMCChanging out HDMI cables on both the Splitter output, and the inputs (I tried 3 different cables on both the inputs, and outputs.)Downgrading OSX to 10.7 (And then went back to 10.9)Lowering the resolution on the monitor (Lower resolutions flicker just as much, if not more.)Resetting the splitter by unplugging the HDMI cord powering it and plugging it back in.and of course, plugging my computer into the splitter input that the Xbox works fine on, as well as taking the xbox one out so the computer is the only input on the splitter.Â
Like I said, the Xbox works fine, and even the computer works fine in Windows, but whenever I boot into OSX my screen flickers with this static. I should add, the display works fine when not connected to the splitter on OSX.
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May 2, 2012
I have a 13" MBP and just bought a new 23" external monitor connected via mini DVI to HDMI adapter.The monitor is recognized fine, but there is extreme jitter on the screen - basically very annonying and unusable.
Info:
MacBook Pro
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Feb 29, 2008
I am having a problem configuring my mac to display a movie on a tv.
I am using the Dynex mini-DVI to video component. I plugged the component into my mac and the extension cable to the tv.
Once the mac was on, the only thng the tv did was display static.
I tried searching through the display options to reset the resolution and and refresh rate, but was unsuccessful.
The tv I am trying to set up is a Sony 40" HDtv.
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Oct 2, 2008
Has anyone here have any success using an external USB drive (2.5 or 1.8 small drives) thru a hub with the Air?
I know I could use a powered hub but I hate taking and messing about with additional power supplies when I travel.
does anyone know of a specific model HD that works with out needing to connect directly to the one USB port but thru the hub?
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Jul 1, 2009
I have a 15" unibody MBP bought in Nov '08.
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
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Mar 12, 2012
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.Â
I connected the external monitor to another computer running Snow Leopard and the external monitor works. So, the external monitor does work.Â
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:Â
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)
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Jun 2, 2008
What is the best portable HD that can be powered from the MBA's USB hub without a power cable.
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Apr 18, 2010
To get my Multimedia-Data off my MBP i5 SSD I am looking for a small, 1 2,5" hdd enclosure that is FW-800 powered. I was unable to find anything in the forums nor in the buyers guide about this. Any recommendations or tests?
I am looking for something well designed if possible (imho like the LaCie Little Big Disk Quadra, which has two hds (double the power comsumption) and is too big).
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Oct 7, 2009
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.
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Jul 19, 2010
Can anyone recomend some? Something fast and AC powered.
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Jun 18, 2008
I think I have found a bug in Finder where I cannot copy large files from a bus powered USB external. I get this error:
"The Finder cannot complete the operation because some data in "..." could not be read or written (Error code -36)"
I think I have eliminated hardware as an issue:
1. The problem is repeatable (and always happens) on my Intel Macbook Pro, Intel Mac Mini and G4 Mac Mini
2. The problem happens whether I have formatted the external as HFS+ or NTFS (I can't use FAT32 for files over 4GB, e.g. VMWare disk images)
3. I can copy the files off the external with my Windows Vista machine (mostly dormant these days) and an XP laptop (I use for work), using Explorer.
4. The same problem happens with two different external enclosures (An Xtatix Portadrive and a Beyond Micro mobile Disk). I have also tried 3 different 2.5" drives in these enclosures.
5. If I boot my Macbook Pro into Vista using Bootcamp, I CAN successfully copy the files using Explorer.
6. I CAN also copy the files OK if I use Terminal and the 'cp' command (it works for all 3 machines)
7. I have NO problems with large files and Finder if I use a powered external with 3.5" drives via USB or Firewire (HFS+ or NTFS) on any of the Macs.
As you see, I think I've been pretty thorough. It seems as though Finder must be at fault when used with a bus powered USB external.
I should also mention that all 3 of my Macs are on Leopard 10.5.3, though I did also boot a my Intel Mac Mini into Tiger with the same result (Finder failed, 'cp' worked).
I have reported the problem to Apple, but wondered if anyone else has had a similar issue...and hey, a solution would be a great bonus!
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Mar 1, 2010
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.
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Oct 1, 2008
I'm looking for a way to connect an external bus-powered Firewire 800 hard drive (Glyph Portagig 800) to an iMac which only has Firewire 400 ports, and still powering the drive through just the Firewire connector.
All I've found are Firewire 400 to 800 adapters, allowing Firewire 400 peripherals to be connected to computers having only Firewire 800 ports. I need the opposite of course.
Where can I get such adapters, and without sacrificing bus-power?
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