MBP (2011) can't detect LCD Projector, says NO SIGNAL

with appropriate Mind Display Port to VGA Adapter, my MBP (mid2011) doesn't detect LCD Projector. I tried Safeboot start up, and also resetting PRAM (Command+Option+P+R).. But both strategies did not work. What else should i do? Thanks!

Hi Petrus1986,
If you are having an issue with not getting any video on your external display, you may want to troubleshoot using the steps in this article -
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Thanks for using Apple Support Communities.
Best,
Brett L

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My MBP 2011 can't detect microphone, why?

My internal microphone works perfectly fine but when I insert an external microphone, my MBP fails to detect it. When I go to System Preferences>Sound>Input, nothing changes in the "Line In" area when I plug in my microphone. When I try to speak into my microphone, it's not picking up any sound at all. My headphone port works fine.
NOTE: My MBP 2011 went in for a logic board replacement/repair 2 weeks ago at an Apple Store. Is it possible this microphone issue is caused by a logic board problem?

This because line level is not Mic level, line level requires about 60 dbv/dbu or more or less of electrical gain (depending on voltage in to load specifications, db short for decibel is not necessarily a measuremet of SPL, sound pressure level, it is a mathematical equation reducing complex equations to a unit of measurement to use in math expressions...very simply put) than a microphone can generate.
You would need a mic pre-amp/mixer to provide a line signal, a mic can not provide anywhere near this level.
This is a very simplified explanation of the electrical therory at work here, and I don't think you are probably interested reading quite complex math equations that "crunch these numbers.
If you do an online search you will find a plethora of pre-amps that will boost this level up to line level, or you can look in to something like the Griffin iMic USB interface which will allow you to use a mic level signal into your USB port easily and affordably.
http://store.griffintechnology.com/catalog/product/view/_ignore_category/1/id/62 3/s/imic/
http://www.youtube.com/watch?v=lVZ8Ko-nss4
I hope this helps you understand what's happening and helps you out.
Some simplified explanations
http://www.ovnilab.com/articles/linelevel.shtml
http://en.wikipedia.org/wiki/Line_level

Win7 on dv6t can't detect Toshiba projector

I have a Pavilion dv6t-2100 (WH770AV) running Win7 Pro 64-bit, trying to detect a Toshiba TDP-T9 projector. When I first connected it, it worked perfectly as I previewed a presentation. Then I moved the laptop and projector to another room, and now the laptop "can't detect projector" no matter what I do.
When I connect the VGA cable between the laptop and the projector, I hear the tones of connection from the laptop, but the laptop screen goes black (no matter which setting laptop is on -- (computer only, duplicate, extend, projector only) -- and eventually I get the message "can't detect projector". The projector continues to cycle looking for input, and cannot find anything.
I am considering getting a new driver for the NVIDIA GeForce GT 320 on the dv6t, but won't until I hear if others have had this problem and have resolved it.
Thanks!

You should post your issue on the laptop forum.
Does the NVIDIA Control Panel should see the second device? Look under setting up for dual monitors. The keyboard also has a video display rotate key function (LCD, LCD off and both).
You can also try a video driver update from the NVIDIA web site.
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MacBook Pro can't detect my projector. Only displays screen saver

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Assuming the drive is not defective I would guess you didn't install it properly. Most likely the ribbon cable is not properly connected. You do know you must partition and format the drive? See the following:
Extended Hard Drive Preparation
1. Boot from your OS X Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger or Leopard.)
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Set the number of partitions from the dropdown menu (use 1 partition unless you wish to make more.) Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID (only required for Intel Macs) then click on the OK button. Click on the Partition button and wait until the volume(s) mount on the Desktop.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.

"miniDVI-DVI adaptor" + "DVI to VGA cable" can't detect LCD TV

Hi,
I just bought a "miniDVI-to-DVI" adapter, and then a DVI-to-VGA male-to-male cable to connect my MacBook to Viewsonic 19" monitor but my MacBook didn't detect the 19" monitor. (This 19" monitor has only VGA but no DVI input!)I tried it on my friend's 32" LCD TV but it couldn't work too.
Then I tried to connect my MacBook by using "miniDVI-DVI" adaptor + "DVI-DVI male to male" cable to DVI socket of my frind's 32" LCD TV. It worked! So I think it's not the problem of the "miniDVI-DVI" adaptor.
I worried that it's the problem of the "DVI-to-VGA" cable so I went to the shop to exchange another new "DVI-to-VGA" cable. But my MacBook still couldn't detect all these 2 monitors via VGA socket.
Can anybody help me? Please advise! Thanks!

Hi,
Thanks for your response.
The shopman told me that "miniDVI-VGA" adaptor was out of stock, only "miniDVI-DVI" adaptor was available yesterday. At that time I thought I had to buy a connecting cable also (no matter it's VGA-VGA or DVI-VGA cable).
Since my friend has a DVI-DVI cable, if I buy this "miniDVI-to-DVI" adapter I may share my MacBook with his 32" TV too. So I bought these adaptor & cable.

MBP 2011 can't find harddrive (not problem with drive or cable)

My early 2011 MBP 13" was running fine, then froze up. On restart I got the image of the folder with a question mark on it (the Mystery Folder) - the system couldn't find a drive to boot from.
I took it to a genius bar and the, ahem, "genius" said the system couldn't find the drive because of a problem with the drive. "The drive's dead" he said. I hadn't backed it up, and was freaking out that I'd lose all my data. The only option he said Apple could do would be to take it away (for a week) and put a new hard drive in for £80. They'd take the old drive out, and I wouldn't get it back to try and recover the data.
I asked about replacing the drive myself, as I've done that on PCs, and he said I could try it.
I bought a new hard drive, and an external enclosure. I put the new hard drive in the MBP - Mystery Folder. I put the old drive in the external enclosure - it starts up! Everything still there, exactly as I left it when it froze. I clone the old hard drive onto the new one, try booting from the new drive in the MBP. Mystery Folder. I connect the new drive with an external enclosure - it starts up! And everything running fine.
It's the cable, I hear you cry. So I ordered a new internal cable. Replaced it. Started it up. Mystery Folder.
So, it's not the hard drive, it's not the cable. What is it?!

Hi Ogelthorpe.
That's right - I now have 2 hard drives, clones of each other.
Both will boot when in an enclosure and connected with a USB.
Neither will boot when inside the MBP.
So it's not the drives that are the problem. Therefore it's an internal cable problem?
I replaced the cable.
Neither drive works when connected internally with the new cable.
What else could it be that means the system can't see the hard drive when connected internally?

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Today, I tried to use my ipad2 for presentation ( by using Keynote app) in college. I plugged in my apple VGA adapter and the projector cable connected with my ipad2. Nothing happened. The projector screen kept on saying there was no output, no display at all and no signal. What should I do????????? Anyone..pls help...

slfl wrote:
Thank you for your quick response to my question. The Apple Genius Bar tried adjusting the color settings in my MacBookPro, as stated in the document you attached. It did not help ... my Keynote lectures are still pastel, and my x-rays are blue & white. I should have stated this in my original query for help.
Again, many thanks for responding.
Did the Apple Genius explain to you why it did not work or even if it's possible?

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I am trying to connect my MacBookPro to a Hitachi CP-X885 projector, which I normally connect an IBM Thinkpad to at 800x600 or 1024x768. I also use my MBP and the VGA adapter to connect to other LCD projectors and monitors (so my adapter works, as well as both systems, projector, cables, etc.). Problem is, that when I connect my MBP to the projector (I have to connect it via VGA as there is a 250 foot cable that goes to the front where the rear-projection takes place). When I do the "detect displays" nothing is detected. I also connected directly to the projector using a shorter cable, same thing (doesn't detect it). So, is the projector not supplying some type of signal to the output, that the MBP wants to see?)... is there a way to FORCE the MPB to have output? I know that if there is signal, it will display (we have LOTS of notebooks that display to the projector just fine, BUT have SEVERAL MBP's, and NONE of them will detect, and we've tried several adapters (just to be sure)... HELP!... is there some way to FORCE output from the MBP instead of it having to DETECT IT???
Thanks!

Sorry Walter, but according to the Terms of Use (which you agreed to the first time you logged in to the Discussions and can be found if you click on the "Help" link to the right):
Do not post a URL unless it directly answers a user's question.
The URL you post does not answer David's original question. Also, it could potentially void his warranty because a firmware hack (and this is indeed a link to a "hack") is an unauthorized alteration to the hardware of his computer. ("Software" can only be installed on the hard drive and that hack is not installed on the hard drive, it's installed on the firmware on a chip inside the logic board.)
I don't want to take this thread off-topic, but your reply does NOT help David's situation. I would, however, value your input and anyone else's to this and any other topic in the Discussions as long as it is pertinent to the original subject.
-Doug

Final cut pro x - lion - mbp 2011 2.0 15 - not responding at all since latest update. Can't open or edit projects, loading window that pops us when you click the app (as it loads) does not go away, says loading compressor support. Have tried reinstalling

final cut pro x - lion - mbp 2011 2.0 15 - not responding at all since latest update. Can't open or edit projects, loading window that pops us when you click the app (as it loads) does not go away, says loading compressor support, paralyzed. Have tried reinstalling, default settings etc
Appreciate suggestion, working on deadline. Thanks.

Here is the start of the crash report:
Process:         Final Cut Pro [20568]
Path:            /Applications/Final Cut Pro.app/Contents/MacOS/Final Cut Pro
Identifier:      com.apple.FinalCut
Version:         10.0.1 (185673)
Build Info:      ProEditor-185670300~1
App Item ID:     424389933
App External ID: 4138831
Code Type:       X86-64 (Native)
Parent Process: launchd [102]
Date/Time:       2011-11-11 20:41:32.201 -0800
OS Version:      Mac OS X 10.7.2 (11C74)
Report Version: 9
Interval Since Last Report:          192058 sec
Crashes Since Last Report:           14
Per-App Interval Since Last Report: 157161 sec
Per-App Crashes Since Last Report:   14
Anonymous UUID:                      DD542B2F-58A0-482E-AAFA-ECADEC76F562
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000280000003
VM Regions Near 0x280000003:
    CG shared images       00000001cbf62000-00000001cc182000 [ 2176K] r--/r-- SM=SHM
-->
    STACK GUARD            00007fff5bc00000-00007fff5f400000 [ 56.0M] ---/rwx SM=NUL stack guard for thread 0
Application Specific Information:
objc[20568]: garbage collection is OFF

My MBP won't detect a projector even when I reboot the system.

I can connect to a monitor, so I know the adapter and cable are working, and my old HP will connect to the projector so I know it's not the projector, but my MBP will not even detect that a projector is connected.. I have tried multiple projectors as well. I am using a VGA cable with the apple adapter. I have read old threads, but there doesn't seem to be anything recent, and it seems like people were able to find the projector after restarting the system. I have tried all of the various displays sizes and colors; I have tried connecting the cables in various orders as one person said this worked for them, I have tried turning off the computer first, then connecting everything, I have tried connecting everything then restarting, but my computer just won't detect the projector(s). Any thoughts?

You can ignore those instructions. Adobe has what I believe is an easier way to install Flash by using the manual installers. See the Adobe troubleshooting guide - http://kb2.adobe.com/cps/191/tn_19166.html#main_ManualInstaller

Problem HDMI connection to new Panasonic TC-60ps34 plasma; tv says no signal but computer detects tv; worked fine on 4 yr old phillips plasma; 2011 macbook pro running os10.6.8.

New 60" Panasonic plasma says no signal won't display picture/sound from 2011 macbook pro running os10.6.8 connected via HDMI with moshi MDP to HDMI Adapter. Same setup on former 4-yr-old Phillips Plasma worked fine (but the tv died!)

dohdoh1985 wrote:
- I tried every Snow Leopard Release from 10.5.8 to 10.6.4
Assuming this means the TV was not detected in any of these versions, this would not be a Snow Leopard installation or setup issue. I think that is what sig is trying to tell you.
If this is true, you might want to post in the MacBook forums to see if anyone has a similar issue. It would be a good idea to post the model number of your Toshiba if you do so, as this might be relevant. Otherwise, it sounds like the problem is in the TV, since the MacBook works with other displays.
Tip: to avoid unexpected formatting oddities that might make your posts hard to read, you can use the "Preview" tab before you post to see how your post will be formatted.
Message was edited by: R C-R

Can I show a MS Word document from an Air to an LCD projector?

I find I can display a Powerpoint using an LCD projector, but if I try to show a MS Word document, I don't see anything on the display screen. Is there some trick to this?

According to this thread in Microsoft's forums:
http://answers.microsoft.com/en-us/mac/forum/macoffice2011-macword/can-i-how-do- i-add-a-digital-signature-to-a/eb2c2787-b13f-4388-b20f-4580515eec95
this is not possible with Word for Mac.
Regards.

Can't load Netflix - Firefox says something about cookie problem and recommends try again button. ("The page isn't redirecting properly Firefox has detected tha

Can't load Netflix - Firefox says something about cookie problem and recommends try again button. ("The page isn't redirecting properly Firefox has detected that the server is redirecting the request for this address in a way that will never complete. This problem can sometimes be caused by disabling or refusing to accept cookies.)" Hit the try again button repeated ly - nothing???

I decided to give Netflix a call about this problem.
On a recording while waiting for a support rep, it said if you're having problems logging in to go to:
http://www.netflix.com/clearcookies
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My macbook wont detect my projector. what can i do?

my macbook wont detect my projector in detect screen display. what can i do?
i have changed and bought new cables but no change. the computer seems to be the issue...
thanks joe

Are you using the Apple VGA adapter or one from another company? Often the third-party adapters do not work well/reliably and the Apple one must be used.
~Lyssa

Is it possible to transport the MBP 2011 in standby mode in a business trolley on wheels or can this damage the HDD?

Hey there!
Is it possile to transport a MBP 2011 in standby mode in a business trolley on wheels or can this damage the HDD?
Thx!

Ok, thanks to everyone! Unfortunately there is no "right" answer, i think!? I have to try it! Thx a lot to everyone!!!
Bye

MBP (2011) can't detect LCD Projector, says NO SIGNAL

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