Late 2008 15 inch Macbook Pro will not detect external projector

I have a Toshiba projector that I am trying to hook up to my Macbook Pro for a presentation tomorrow. The computer will not detect the display. I'm using a DVI cable connected to the Mini Display Port. I know I've got the projector on the right input as my white Macbook with mini DVI will detect it but not display it properly (all green).
I've tried shutting down and disconnecting and everything. I need this to work asap.

Have you checked the screensaver and power settings, sleep display etc in the System Preferences?
You can throw this mega cocktail at it, see if it cleans up your problem.
Download the free OnyX here
http://www.titanium.free.fr/
Run ALL the maintainence and cleaning aspects, , especially the caches, you can cancel the reboot in between.
Finially run the Verify > Preference file check/repair and then reboot.
This should clean out all your caches and whatnot.
Then look at this support article about resetting the SMC/PRAM
http://support.apple.com/kb/ht3964
http://docs.info.apple.com/article.html?path=Mac/10.6/en/26871.html

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MacBook Pro will not detect external speakers, even though it did yesterday

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I had this problem, too for my 2014 MBP. The output speakers did not show up when I tried to connect through the HDMI port. However, the output speakers did show up when I used an HDMI to Thunderbolt cable.

My macbook pro will not detect any external monitors

My macbook pro will not detect any external monitors, worked 'once' when connect to a TV.
Have read a lot of web comments, most not very usefull.

Hi a,
Check the setting in Sys Prefs > Displays.
Try a different adapter and/or cable.

My Macbook pro will not recognize external devices

My MacBook Pro will not recongize external devices such as hard drives

I know that is of no help, but I have the same problem with a Toshiba harddrive. My wifes Macbook Air recognizes it. No problem with the hd I guess. But my macbook pro won't show it in the Finder, About this mac or disk utility - even though it is running. I would also be glad to get a solution to this.

MacBook Pro will not detect displays. . .

I found this link, and it best discribes what is happening on my macbook. I have a thunderbolt to cdmi cord that I use on my TV. Then all of a sudden, it just stopped working. . . My screen flashes black for about a second like its about to connect to my TV, but then nothing happens. Please help. . .
I have a MacBook Pro 13 Mid-2012 running 10.10.1
Here's the link i found my macbook pro does not detect external display anymore

Just one bit of data...
I don't know what the deal is, but I had a similar situation. (It all worked fine, then I upgraded to 10.9.5 and it didn't work any more, but then I upgraded to 10.10 and then it worked. Then it wouldn't. but once in a while it would. It made no sense. ) In the end I got a different (more expensive) adapter and cable and everything works properly.

Late 2011 Macbook pro will not detect HDMI

I recently purchased a MDP to HDMI adpater for my late 2011 macbook pro (I have OS X 10.7.5). I hooked it up to my television and tried to use it as a monitor but my macbook pro refused to detect display. Heck the screen didn't even turn blue when I hooked the adapter up. I wanted to make sure my port was working and hooked up my MDP to VGA and it worked like a charm the screen turned blue and my cintiq was detected immediately. I was wondering if anyone else had this problem as well?
Ther is a possiblity that it is the actual adapter because I bought a floor model in an effort to save some bucks. So I'm going to take it back for an exchange later on today and see if that works. But if that isn't the case does anyone know how to resolve this issue.

Did you click the "Detect Displays" button in System Preferences > Displays?:
Bottom-right?

ITunes on my MacBook Pro will not detect my iPad

I have a MacBook Pro and the latest version of iTunes - it detects my iPhone 5 but will not detect my iPad (2). I want to back up my iPad on iTunes because my iCloud is full, and I am thinking about getting a new iPad. Any suggestions??

We have no idea which version of OS X you are running, so here are two support articles about your issue.
iOS: Device not recognized in iTunes for Mac OS X - Support - Apple
Mac OS X v10.6: iOS device not recognized in iTunes after restart
Sometimes it's as easy as quitting iTunes, restarting the Mac, restarting the iPad. Give that a try if you haven't done so already.

13 inch Macbook Pro will not print to HP 3050 printer

Hello all,
I am having difficulty getting my macbook pro to print to my HP 3050 J610 printer wirelessly. It will print fine with my windows 7 machine but now with my apple new laptop. When I attempt to print to the printer the macbook sends the job to the print cue and it disappears from the cue almost immediately but it doesn't print.
Here are my particulars.
Apple Airport time capsule Version 7.7.3
Macbook Pro 11.1, intel I5, 8G Ram, 500G Hard Drive, OSX10.9.5
The time capsule is my wireless router. I can see the printer connected to it via my macbook pro. I just can't get anything to print to to the printer from the macbook.
My windows machine will print just fine. These are my first Apple products so Im sure I missed something somehow.
Thank you
Eric
Model Name: MacBoo
Model Identifier: M
Processor Name: Intel
Processor Speed:
Number
L2 C
L3 Cache: 3 MB
Memory: 8 GB

Try Resetting your Mac's PRAM and NVRAM
If that doesn't help, try Resetting the System Management Controller (SMC)
If that doesn't help, try fsck > Resolve startup issues and perform disk maintenance with Disk Utility and fsck

MacBook Pro will not detect HDD?

Hi, I own a MacBook Pro 15-inch 2.8GHz Core 2 Duo. In the middle of my work, my computer had frozen, so I shut it off and tried restarting, and even reset the PRAM. However, I got the "cancel" icon instead. After a few more tries, it turned into a folder with the question mark. I figured it was a bad hard drive due the the result of an accident involving meter fall that happened a few days prior.
Today, I purchased a replacement hard drive - a Seagate Momentus XT, and an external hard drive case for the old one, just in case the old one does work. I booted the computer using the OS X install CD only to find out the HDD hasn't been detected. I've restarted several times and no luck. Meanwhile, I installed my "broken" hard drive into a usb enclosure only to find out that it does work and functions normally. I then tried formatting the new drive to HFS using another Mac, and no luck. I've even reinstalled and switched between the two drives and still no luck.
I concluded that if the hard drives weren't the problem, then it was the connection between the hard drives and the logic board. I made sure that everything was securely connected, but that did not work. The problem is, I don't know whether or not it's the SATA cable or the logic board. Otherwise, everything else seems to boot up fine. My warranty ended September 2010 as I simply couldn't afford AppleCare. Any advice as to what I can do from this point on would be helpful.
Thanks!
Message was edited by: BradleyMG
Message was edited by: BradleyMG

The only way to determine if it's the logic board or the cable is to switch out each. One trouble shooting thought is if you have another computer you could put the new Seagate into an enclosure and see if the other computer can see it, that will at least verify your guess that it's fine. If it's not found then you one that was DOA.
However all that being said you mentioned you got the folder with question mark screen, this indicates the logic board should be OK.
To be honest my recommendation would be to take it to an Apple Store to be checked and to determine what the bad part is.
Best of luck,
Roger

Reinstall using Retail leopard discs, MacBook Pro will not detect speakers

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Message was edited by: Kardon
Well this is mildly embarrassing but it IS valuble to others in my situation!
*OKAY SOLVED* (must be a record I posted the question a minute ago).
I forgot to mention I also couldn't adjust brightness, but after running the software update, it seems all of the proper drivers have been download and installed because I now have full proper function of the MacBook Pro. Thanks for the wasted space, but again, this could be useful for others. If this is happening to you, just run the Software Update tool (under the apple logo in the top left) and let it finish its 800mb update, all will be solved.
Message was edited by: Kardon
Message was edited by: Kardon

I had the same problem, except mine happened after restoring from a Time Machine backup onto my new unibody MacBook. Thanks to the OP.

2011 Macbook Pro will not detect Sony Barvia

I have a 15 inch 2011 Mac Book Pro 10.7.4 and am trying to hook it up to a 55 inch Sony Bravia KDL55HX729. I am using a rocketfish mini displayport to HDMI adapter. The problem I am having is that the computer can not detect the TV. There is no arrangements tab when I went into displays through system preferences. If anybody has any tips it would be appreciated.

Did you click the "Detect Displays" button in System Preferences > Displays?:
Bottom-right?

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I reset PRAM
I reset SMC
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I boot to the verbose mode, the last lines I see is
Executing fsck_hfs (version hfs-226.1.1).
USBMSC Identifier (non-unique): 000000000820 0x5ac 0x8406 0x820, 3
IOThunderboltSwitch<0xffffff8015d8e400>(0x0)::listennerCallback - Thunderbolt HPD packet for route = 0x0 port = 11 unplug = 0
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Well the people at Apple have no way of knowing if you have a marginal hard drive, or something installed that would interfere with the update from a third party. Problems can arise especially from tools such as system cache cleaners, anti-virus, firewall, and other software that operates in the background.
http://www.roaringapps.com/ should help you know what is compatible if you are running 10.7 or later.
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HT1338 MacBook pro will not detect internal speakers.

This issue seems to have cropped up after hooking up to a Jambox voia blue tooth. I have "stopped using headset" as audio device. The volume control on my keyboard a has that locked icon disallowing me from adjusting volume. How do I go about reinstating my internal speakers as they do not show up in system preferences dialougue box for sound?

I HAVE SOLVED THE PROBLEM: USED MY HEADPHONE JACK AND IT SEEMS TO HAVE DISLODGED SOME GUNK IN THE PORT.

MacBook Pro will not shut down

A principal at my district has a MacBook Pro 15-inch Early 2008 (2.4/2X1GB/200-5400/256VRAM/AG) running OS 10.5.8 that will not shut down. When shut down is chosen, the computer restarts instead of shutting down. It does not matter how shut down is chosen, whether it is from pull down menu, keyboard command, click on shutdown in the login menu, etc. I have tried resetting PRAM, SMC, starting up from a known good system, and run diagnostics applications (which turn up no problems). The only way to get the machine to tunr off is hold the power button down until it shuts off.
The user complains it also gets very hot when he leaves it sitting open in sleep mode. I have not observed that particular symptom. It also tend to run down the battery faster than it should (battery check shows it to have 80+% of it's original capacity.) But Activity Monitor does not show any unusual activity.
Any suggestions what I can try next to figure this thing out?
Thanks.

On occassion (like tonight) my MacBook Pro will not
shut down - even when I attempt to force quit. Any
suggestions?
Happens here too, but very rarely. In my case it mostly happens late at night when OS X is supposed to run some internal maintenance jobs, maybe some of them do not allow a shutdown?
Does holding the power button down for approx. 10 seconds work? If yes, then I would not worry about it. If no, there is something seriously odd and I would report it to AppleCare.
Cheers,
Uwe

Late 2010 17-inch MacBook Pro beach ball freeze

Hi all, this is my second to last resort (last is sending in for repair xD). Well anyways, hope that you guys can help me solve this problem so I won't have to go there .
Here's the story:
I recently purchased a custom, late 2010 17-inch MacBook Pro with these apple upgrades:
-2.8ghz intel i7
-anti-glare screen
After doing some research, I found out that the memory and harddrive upgrades from aren't any special. So, I decided to do these upgrades myself since it is cheaper. These are the components that I have installed:
-Corsair CM3X8GSDKIT1066 G (2x4gb 1066 ddr3 memory)- http://www.newegg.com/Product/Product.aspx?Item=N82E16820233081
-Corsair P128 CMFSSD-128GBG2D (128gb ssd)- http://www.newegg.com/Product/Product.aspx?Item=N82E16820233087
I purchased both of these items from newegg. The solid state drive came off of my old laptop, which I installed into about 6 month ago.
So, once my MacBook arrived, I didn't even turn it on. i went straight into unscrewing the back and installing the components. The process went smoothly and I booted up the machine afterwards. Everything looked fine at first, but the installation failed about midway through (due to failure to copy necessary files). But I tried and tried again and after about the 25th time (yes I know, it took the whole day), it finally worked. The reason for my persistency is because everytime it would fail, it would fail at different spots of the installation, so I figured that eventually I will get lucky. So I unchecked as many items as possible under the "what to install" list and it finally went through after many tries.
Now, with OSX running, the laptop would constantly freeze with the beach ball of doom.
Here is my thought process of what could be wrong (from most likely to least likely)
-installed ram is defect
-apple osx cd is defect
-compatibility issues with solid state drive (the drive must be fine since it worked in my old laptop for 6 months)
Once I installed OSX, I quickly went through the process of elimination to solve my problem:
-ran 15 hours of memtestosx with zero errors -> ram is fine
-since osx is running without a cd now, not the cd
-very unlikly that there are compatibility issues with harddrive
I did a TON of googling and found that many people have the same problem as me, but mostly on much older models (in which apple fixed through software/firmware updates) and also flash problems. I tried to installed these updates but OSX said that my system does not require them. So, I installed a beta version of flash and everything was much better, the computer started up 3 times faster and it did not freeze for a while. Hoever, after a couple hours of on-off use, it froze again . Knowing that it must be flash-related now, I uninstalled flash all-together. However, the problem still remains.
Here is a more detailed description of when this freezing occurs:
-mostly during safari operations such as loading a webpage or closing the browser
-it froze a couple of times while opening things such as the applications folder from the bottom dock or opening the "about this mac" window.
-before the flash beta update, it would freeze in the middle of a flash video playback from internet (like youtube). But after update, this freezing stopped occuring (did an hour of testing) and I actually got to the point where if I am loading a page in safari and it "looks" like it is freezing, I could close safari before my system goes into complete melt-down (once beachball starts spinning, all hope is gone)
Now, I am thinking that it might still be the OSX cd. Even though the installation was successful, it might have copied corrupt files that are freezing the laptop. I have order a replacement cd from apple and it should arrive within a couple of days. However, I still have big doubts on this being the actual solution.
I know that since this is a very recent model, it is hard for many people to have come across such problems yet (especially with my specific specifications). However, if anyone has an idea, or a past solution that is fits the description, any help is greatly appreciated.
Thanks for reading

Hi Dale,
Thanks for the replies. No, when I powered up the Mac, I put the OSX cd in first thing and press and held "c" until it started booting off the cd. Then I proceeded on reformatting the drive and etc.
I read all of that forum post. I reseted the PRAM, still freezes.
The new OSX cd came today, same thing happened, although it only took me 2 tries to install OSX. However, it would still freeze afterwards.
I very much realize that it could be a ram problem and how Corsair doesn't work so well with apple. However, Corsair has yet to let me down, that's why I chose it over crucial when I purchasing the ram. I did a lot of research and it seemed that as long as the ram meets spec, Macs will take it. And after 15 hours of memtestosx testing, I highly doubt that it is the ram.
However, I think I might have found the solution. I finally got the time to free up one of my external hard drives and installed OSX onto it to test the hard drive. I checked everything for the optional installs (except rosetta and the old quicktime) to further confirm my theory. After a very long install, it completed successfully! the odds of that happening on the first try using the old system is quite low (due to my countless install attempts with the old system and it failing with only half of the load of my new install).
And since then (probably around 3 hours of usage), my MacBook has not encountered a beach ball of death yet (well, sort of. it did it once when I was restarting, but I think that was due to the old drive because it is still plugged in and it was probably trying to read it while it was frozen in the closing phase of a shutdown). Anyhow, I think a few hours of usage will definitely confirm my theory and hopefully a ssd firmware update will solve my problem so I won't have to invest on a new ssd xD.
Ill update once I have made any progress

Late 2008 15 inch Macbook Pro will not detect external projector

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