Mac Pro :: 2009 Won't Communicate With The Connected Monitor
Aug 25, 2014
my mac pro desktop was bought roughly in 2009.its running the latest os that this model can run with tiger.the problem used to be intermittent,now it is very hard to get this thing to communicate with the external monitor.the led on the mac shows that its on but it won't chime as it starts up.whenever it did cut on,it would stay on for a moment then a dark tint would scroll over the screen desktop from top to bottom and everything freezes.i then have to turn off the computer from the button.A side note:This computer never functioned properly from day one when i was using it to run my protools music recording DAW.i could barely complete songs as it would run out of cpu and processing power.the computer has 14 gigs of ram,and quad core processing.i took it to apple store for tech support but they found nothing.now i am solely trying to run my serato dj software with it.based on these symptoms,what is wrong with my computer? is it software problem or is it a bad graphics card,bad cpu,is there any parts i can buy to inexpensively overhaul this computer?
Info:
Mac Pro, Mac OS X (10.6.8)
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Oct 22, 2009
I was surprised one day to find an inch of white line running from top to bottom on my screen. Then after a week it expanded to two inches white line, then suddenly it turned all black and I can't see two inches of my screen from the right edge. I was reading some forums and found out that I can use a dell monitor as a secondary monitor, but is it possible to use the dell monitor as the primary monitor in case the black line will spread throughout the entire iMac screen? so the iMac would serve as a stand alone processor like a regular desktop?
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May 14, 2012
Can I use an iMac 2009 as external monitor for a MacBook Air 2010?
Info:
MacBook Air, Mac OS X (10.6.8)
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Oct 30, 2009
Would a Macbook Pros Graphics Card Support two monitors? If so what kind?
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Jan 17, 2007
Is there an easy way to cause a connected external monitor to be "disabled?" E.G. I have an iMac connected to an LCD TV (via VGA, spanned, external at 1360x768). If the TV is plugged in, even if it's off, the computer switches to spanning mode. The consequence of this is that, if my preferred setup is to have the external be main, for instance, I essentially have to unplug it from the iMac whenever I don't want to be using it. Even if the external is the 2ary dsplay, it means that the mouse can go off the edge of the screen on one side, and that two of the hot corners are messed up. Is there any utility that could do something like add a "disable external display" item to preferences or the menu bar?
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Mar 22, 2009
I am considering replacing my G4 Mac mini, which is used primarily as a desktop. It turns out that my computer desk is very close to my Sharp Aquos LC32GA5U TV. With the right adapters, it should be possible to have my monitor and TV connected to the new Mac mini at the same time. The DVI/HDMI cable to my TV should be about 12 ft. I have some questions about a setup like this. Will a video cable of this length cause any issues? My TV will not be turned on all the time. Does Leopard recognize the fact that a display is turned off and prevent apps from putting their windows on it?
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Apr 1, 2012
can it be connected through what wire cables?
Info:
Mac mini, iOS 5.1
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May 27, 2012
I own a g4 quick silver which has a "formac" flat monitor. This monitor connects straight in to the g4. I have just bought a g5 but it will not connect, I have looked at adaptors but cannot find the right one. Does.
Info:
PowerMac
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Jun 13, 2012
I have a new Mac Mini connected to an older VGA monitor using the Apple brand VGA adapter. The mini is fully up to date and runs perfectly when booted. However, if I reboot the mini with the VGA monitor connected, it fails to boot. I just hear the faint chime sound every other second. There is no output to the monitor and the only way I can get it to boot is to disconnect the monitor and then power cycle the mini. I can reconnect the monitor just seconds after powering back on and it finishes booting properly.
I've also tested with an HDMI connected monitor (without the VGA adapter) and it boots just fine and the display works properly.
Info:
Mac mini, Mac OS X (10.7.4)
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Aug 25, 2008
I want to run my g4 17 inch powerbook connected to an external screen with the lid closed, when i shut it the external screen goes off aswell, I have been told to use an external keyboard etc, I want to use a bluetooth keyboard and mouse. Is there anyway of doing this?
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Mar 16, 2010
I feel like when i try to hook up my macbook to a monitor with the vga adaptor, it just never works smoothly. i always have to play around with the wires for a while until i have an image on the screen. plug out the usb mouse and keyboard, plug them back in, unplug the adaptor, plug it back in. then finally it works, and this is every time i try to do it. i prefer to to it with my laptop closed, not in dual screen mode. can anyone point me to a simpler process to do this? its getting really annoying
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Apr 28, 2010
Looking for a keyboard (preferably wireless) and mouse to hook up to my mac that will be connected to a monitor. I also want to use the display for my pc laptop. Will I have to keep registering and unregistering the keyboard and mouse every time I want to switch between my mac and pc? Also does anyone know if I will have any problems with the apple wireless keyboard and logitech mx revolution mouse with both my computers?
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Jul 26, 2010
I am trying yo plug my NEC EA231WMi into my MBP via DVI and a DVI to mini display port Adaptor and the computer is not recognizing the monitor. It does nothing when I plug the monitor in.
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Aug 18, 2010
I bought a 22 inch monitor. its a pretty generic brand, but its very high resolution and works great on other computers. i got the vga adapter for my aluminum macbook (i posted in this section because its closer to the 13" mbp). i have an apple keyboard connected to it. i try to use it in clamshell mode and when i press a button on the keyboard to wake it up the screen just flickers as if its trying to adjust the resolution. strangely enough, it works perfect in mirror mode. anyone have an idea?
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Jan 4, 2009
Did any of you experienced this ? My WiFi slows down or even stops working when external monitor is connected (via the big connector, don't remember it's name, DMI or something like that). Air Rev A, 1.6.
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Sep 28, 2009
I have a strange problem with a WiFi slowdown when connected to a TV. Here are the specs of the equipment:
2.2 Ghz white macbook, santa rosa, 4 gb ram, purchased January 2008
Panasonic TV connected via HDMI to DVI cable + Apple Mini DVI to DVI connector
USB Western Digital harddrive connected to a 500 GB Time Capsule (1st edition, no dual channels)
Snow leopard 10.6.1
Before upgrading to snow leopard, I would frequently use the macbook to provide video to the above mentioned TV streamed from a hard drive connected to an imac (connected to the same time capsule). I moved, and upgraded to snow leopard, and haven't tried this until finished setting up my equipment yesterday. I can stream videos to the macbook from this hard drive fine when nothing is connected. However, the moment I plug in the mini-DVI connector, the WiFi drops to a crawl. This applies not only the to air disk but any data from the network (internet, etc.)
A couple of additional notes: Display is set to mirror. Has nothing to do with clamshell mode because the macbook isn't closed. Nothing to do with location/interference- the effect is instantaneous with plugging and unplugging the cable. The base station is actually closer than in my previous setup and is pretty much 20 feet away in direct line of sight. I connect to another external monitor daily at work (vga, again with apple mini dvi to vga adapter)- no issue whatsoever restart did not help. I canceled all time machine backups over the network to limit that as a factor- no effect.
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Apr 9, 2010
I have a new issue with my Mac Pro (3,1 - 2008), it just popped up (and I don't think it was caused by 10.6.3, I remember this working correctly after it was installed I have two monitors connected via DVI to a flashed XFX 4870. The 4870 has never given me any trouble.In the Energy Saver settings, I usually set the machine to never sleep, and the displays to sleep after 5 minutes. This used to work great, never had any trouble with it, ever. Now, the displays don't go to sleep after 5 minutes, they just stay on with a screensaver.
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May 16, 2010
Recently, my quicktime (with Perian installed) stopped playing AVI files - giving me the whole 'The movie is in a format Quicktime doesn't understand' business. This made no sense to me as AVIs were playing fine previously. Nothing I did could fix the problem. HOWEVER, just today I plugged in an external monitor to test something out; lo and behold, quicktime is playing AVI files just fine again. What's going on?! Has anyone seen this behaviour before?
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Apr 3, 2010
I purchased a Dell 2209 WA ISP monitor, and connected it to my Macbook Pro via a DVI to DVI connection. My Macbook Pro has a GE FORCE 8600 T graphics card.
The text is quite blurry on the Dell. It is at 1680X1050 native resolution, which is supported by Macbook.
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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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Dec 22, 2010
I have a MacBook Air (11.6") and a Philips 234EL monitor whose native resolution is 1920 x 1080.
However, when I connect the monitor to the laptop with an Apple HDMI cable and a Moshi Mini DisplayPort to HDMI adapter, the maximum resolution I can get is 1600 x 900.
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May 1, 2007
I'm using a DVI->HDMI cable to connect my Powerbook to my Sony LCD TV. The Sony's native resolution is 1366x768. For some reason my Powerbook doesn't want to switch to this resolution. I can get 1280x720, but this leaves a black border around the images the whole time.
I've tried setting a custom resolution using the trial version of SwitchResX but to no avail. It won't do it.
Anybody have any similar experiences and possibly found a fix?
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Jun 18, 2009
I've been searching for a vertical laptop stand for awhile now, since I use my MacBook Pro and my Dell Inspiron both in clamshell mode and connected to the same monitor. There were some pricy options out there ranging from $40 to $300, and then I found the perfect solution at the thrift store today for $1.50: a napkin holder.I bought one very similar to the one pictured here, and will be sanding it down and painting it black. It works extremely well as a vertical stand, and I'm getting a second for the Dell. Forget overpriced stands and repurpose something
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Dec 10, 2009
I have my macbook pro connected t my sony xbr 9 tv, but the tv says there is no signal. however, the macbook pro recognizes the sony tv and it's resolutions. it connected through a mini displayport to hdmi adapter i bought off monoprice, and i don't think it's faulty as i used it in my living room tv thats also a sony.
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Jan 9, 2010
when I connect my macbook unibody with dvi to my dell monitor the quality of the screen is not as "good" as when I connect my windows pc to it. Is this only a problem on macbook, or is the mac mini the same?
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Feb 4, 2010
I have a 24 inch imac and i am connecting the viewsonic VG921m (19'') monitor using the mini-dvi port. The external monitor appears dull (whites have a yellow tint) Is there a way to match up the display to look like mac? I am using the monitor next to my iMac and its currently distracting as its displaying same colors in different tone.
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May 22, 2012
When I close my macbook pro whilst it is connected to an external monitor the internet connection slows down?
Info:
Mac Pro, Mac OS X (10.6.7)
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Sep 7, 2009
I just bought myself an entry-level MBP 13". Coming from PB 12" 1.5 ghz, this is a major upgrade for me, and I am happy about it. However, there is one thing that I cannot figure out.
I have been a happy user of Dell 2209WA, which works perfectly with my PB. Today, I connected the monitor to my brand-new MBP via Mini DisplayPort to VGA adaptor. After connecting it, I closed the machine and woke up using my mouse. Immediately after that, the monitor said "Entering Power Saving Mode." I clicked the mouse, then the picture was sort of blurry. Then the monitor kept on entering power saving mode... As for the picture quality, even after I opened system pref. and detected the monitor, it was still not good. I'm totally bummed, because I really like the monitor.
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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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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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