Mac Pro :: No Output To Display / LCD Monitor
Feb 28, 2008
MacPro 8 core Nvidia 8800, RAID card - arrived 2/25. Tried second monitor; monitor is blank (and turned on, and says "digital signal" when unplugging display connector from the machine, so it's recognizing the connection, monitor is fine on old G5). RMA'd for a new 8800, rec'd that on 2/28 - same result, so it's probably not the card. Tried 8800 card in different slots, so probably not a slot. Ram lights flash, HD spins, power light is on, so likely not power supply. Motherboard or RAM is only other thing I can think of, or maybe some kind of incompatibility with the 8800. Also, the fans on both 8800's run at what seems like full power when turning the machine on - is that typical for the 8800? Maybe that's a symptom of the problem; it's a lot louder than I would prefer.
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Mar 20, 2009
Ideally I'd like to use both the ACD for day to day audio output, then turn on the external amp while watching movies and playing music, being fed by the optical out.Is this possible, or will connecting the optical cable stop all sound from coming through the ACD?
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Apr 19, 2010
I picked up a MBP 15" core i7 high res laptop on Friday. I actually ordered one of those mini displayport -> HDMI awhile back (was going to get a mini, decided no), however when I hook it up to my plasma it won't adjust the resolution to 1920 x 1080, I checked "display" in system settings but it won't let me push it past the native resolution of the laptop screen.
Any suggestions how to get around this? Also it mentions on the website it can push sound over HDMI now, I wasn't able to figure that out either.
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Jul 11, 2009
I would like to write an iTunes visualizer plugin using Java. Is there a site for getting information on how to interface with iTunes via Java and how to monitor the audio output from iTunes?
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Apr 18, 2009
Trying to output via Displayport using my white macbook but for some reason Windows can't detect my monitor or the DVI output.. anyone able to successfully output from bootmcamp?
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Aug 18, 2010
I have a fresh install of Windows XP, service pack 2 on a boot camp partition on my macbook (13" first gen aluminum case) and a Apple LED Cinema Display attached to the mini display port.
I can't seem to make the Cinema Display the primary display (the "Use this device as the primary monitor" checkbox is always greyed out in the Display Property Settings tab). I also can't shut the macbook lid and continue to use it closed (with kb, mouse and monitor attached) like I would when booting OSX.
Is there some other way to make the Cinema Display the primary monitor, so I can leave the macbook closed when booting into Windows?
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Aug 5, 2009
As said, my current set up is an HDMI - DVI cable (HDMI to monitor and DVI to adapter) and my DVI - mini DisplayPort adapter, everything is connected fine but when I turn on the monitor, it says cable not found... and nothing is displayed on the screen but on the Macbook side of things, it sees the monitor is connected (I can extend the screen and leave the screen) but other than that, it appears I cannot get an image on the monitor, pressing every button on the monitor does not work either.
Any other information that may seem necessary, let me know. I tried clearing my PRAM and clearing the power and such but nothing seems to work.
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Jun 23, 2012
I have a 13" mid 2011 MacBook Air and a new ViewSonic VX2453 monitor. I used the Monoprice mini display port to HDMI converter with audio and connected the monitor to my computer's thunderbolt port. The video works perfectly, but the sound isn't working at all. I set my computer's sound output in settings to VX2453 series (type: HDMI), and I set my monitor's audio input to HDMI. Nothing. I also tried changing the frequency in Audio MIDI Setup, which someone recommended on amazon for the monoprice adapter, but that didn't work either.
I tested the monitor's sound by switching audio input instead to "audio in" and connected to my headphone jack, and that worked so the monitor's sound is fine.
Info:
MacBook Air (13-INCH, MID 2011), Mac OS X (10.7.4)
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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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Nov 30, 2010
I give presentations regularly, and I always lock (with password) my MBP if I need to leave the room for a quick break. However, I often need to leave the secondary display projected on the big screen. Is there a way to keep the secondary display showing even when locking access to the MBP?
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Aug 25, 2009
How do you tell the MacBook Pro to output to the Apple Cinema Display when the lid is closed rather than go to sleep? I know you can use the ACD as a secondary screen OR as the only screen with the MBP lid closed. Is there a setting somewhere for this?
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Aug 10, 2010
I've got quite a simple question about an MBP and an Xbox 360, which I'm sure some have asked and others have answered before, but I'm looking for a straight-forward response given the situation I find myself into. So I've got the two devices, and I'd like to use the MBP's display as a video output for the 360. What I've also got is a VGA adapter for the 360, so I could connect it to a monitor instead of a TV. So basically, is this achievable, and if it is, what else do I need, in case I need anything else? Sorry for the improper way of writing this message, but all I have is an HTC Desire, and I find it quite difficult to type very well.
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Jun 14, 2012
13" MacBook Pro 2.3 Intel i5 8gb ram 500gb hybrid Hdd OS X 10.7.4 Thunderbolt port mini display port to DVI and with HDMI adapter works fine mini DP to VGA adapter will see VGA monitor (tested on 5 different monitors) but will not display anything on external display. Newer displays just go into power saving mode and older VGA displays just are blank. Even tried DVI to VGA adapter on mini DP to DVI adapter with same issue. I'm guessing I have no analog output from the DP port. tried the SMC and PRAM reset with no results.
Info:
MacBook Pro, Mac OS X (10.7.4)
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Feb 11, 2010
I just purchased a mac mini and I hooked up the vga cord, however there are two black bars on the left and right sides of the output (everything else is scaled fine but it looks like it is showing on a tube screen). What resolution/tweaks do i have to make in order to get this to fit my entire screen? I am using the typical VGA adaptor for output from the mac mini to the tv.
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Mar 28, 2012
I use studio monitors (speakers) with my macbook pro 13 (2010) and a samsung 1080p external display. Whenever I plug the display in, it causes a hum in the speakers, and weirdly the pitch of this hum varies depending on the brightness of the contents of my screen. I have borrowed my friends USB audio interface, and I still experience the same problem, except the hum is now cleaner and louder. I would assume this rules out problems with the internal sound card.
In both cases, the hum stops when the sound card/output 'goes to sleep' (ie after there has been no sound output for a few seconds). Also the hum only starts when the computer is outputting to the display. In the few seconds between physically plugging the display in, and the mac sending a signal to it, there is no hum. This is why I'm starting to think this may be a problem with the computer and not the monitor. The monitor is a cheap (£120) monitor - samsung p2270HD, and also has a TV tuner and stuff.
What I need to know is whether this is a problem with the computer, bleeding the signal through to the sound output, or whether it's my kind of crappy monitor. Another thing, might it help if I changed from VGA (analogue) to DVI (digital) video output?
Info:
2.4ghz Macbook Pro 13 2010, Mac OS X (10.6.5), Win7 on bootcamp
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Sep 8, 2014
I'm looking to run video out to two TVs, but it's over a decent distance, so I'm worried that using an HDMI splitter would cut the signal and suffer quality loss. I was wondering if both mini DisplayPorts can be linked to output the same signal at the same time, so that both TVs can show the same thing but each signal is at full force.
Info:
iMac
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Oct 25, 2009
Alright so I go the new 21.5 inch and love it but I was wondering if the Mini-Display Port does audio for the HDMI output. Because if it did, that would be wonderful.
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Nov 6, 2010
I've installed a Mac Mini (unibody) on a friend's boat and have the display output through the HDMI port througha distribution amp to 3 TVs. I have been having resolution difficulties though. When the display is output this way (split three ways) the resolution does not fit the displays, and there is no means to change it to a setting where it will fit the TVs. All TVs are full-HD and 1080p. The screen expands outside of the viewable area.
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Mar 4, 2012
Initially My macbook pro 13" was working with Sharp 32" display in mirror display with closed lid, after ward I change the resolution to 480p , then TV screen is black now with a message incompatible output format. How to change back to original resolution
Info:
MacBook Pro, Mac OS X (10.7.2)
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Apr 22, 2012
I would like to connect my Macbook Pro to my hometheatre via HDMI. Normally no problem with the mini display port and an HDMI adapter, but the port is already used for the 27" cinema display... Is there another adapter available that let`s me connect both, an HDMI device and the cinema display to my Macbook? I only care about the sound - I want to get digital sound to my receiver. (I am not interested in the solution via airport express and then connect via analogue audio cable - I am looking to get a digital sound signal all the way through...) about Macobook Pro: mid 2010, 17", Processor 2.53 GHz Intel Core i5, Graphics NVIDIA GeForce GT 330M 512 MB)
Info:
MacBook Pro, Mac OS X (10.7.2)
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Apr 20, 2012
I have a 21" Samsung Monitor that displays at 1680x1050 which is attached to my 27" 2011 iMac. The iMac only has the display option of 1600x1200 60hz. This is not the right one clearly and the reason i wonder why it is not there is that my MacBook Pro which is 2009 unibody does have this option and both are running the same 10.7.3 OS.
Info:
iMac, Mac OS X (10.7.3), 27" QuadCore 3.4GHz i7
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Apr 29, 2012
I have a MacBookPro, model: A 1278 (Mid-2010 13"). Is its mini-display port capable of delivering both video and audio output to a HDMI adapter? or just video output only?
Info:
MacBook Pro, Mac OS X (10.6.8), Model No: A1278 (Mid-2010 13")
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Sep 18, 2009
For some reason, I can't get Logic Express 8 to output audio to my Mac's attached speakers. It outputs fine through my M-Audio interface, though, but I'd just like to listen without headphones.
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Jun 19, 2012
My sound keeps turning off. When I check the settings, the output device switches randomly between Internal and Digital output. I have no idea where the Digitial Output is coming from and this started about a month again. It switches randomly and then I loose all sound for a few seconds. Sometimes it happens once then stops for a few days, other times it switches back and forth for 5 min. No idea!!!
Info:
MacBook, Mac OS X (10.6.8)
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Aug 12, 2010
I have the 2009 Mac Mini and was wondering if the mini display port has audio output. Does anyone know? I just want to minimize the amount of cables going to my tv.
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May 23, 2009
I use an external monitor with my macbook, it's a couple of years old 17" Sony TFT. I connect it to the macbook through a DVI cable into the adaptor, into the mini DVI port on the mac. About 90% of the time I do this, the second display shows the correct graphics but is tinted fluorescent green, however if I play aorund enough with the connection, it goes back to full colours. Is this something a genius could fix, or do you have any recommendations about what to do?
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Mar 2, 2012
You definitely can't use an iMac as a display monitor for a Mac mini
Info:Mac mini
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Nov 14, 2010
I have an old iMac G4 and I was wondering if I could just use the screen somehow since I don't need to use it as a computer? Could I use it like a TV to play xbox or something?
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Mar 18, 2009
I would like to know if it is possible to use an external monitor as primary display. On a unibody MBP.
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Apr 19, 2009
Just about to order a 3.06 with the 4850 and can anyone tell me if I can extend the display to run across a second monitor or does it just mirror the main display?
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