Mini-DVI Unplugged Makes for a Blue Screen

Hi,
Whenever I use the Mini-DVI to watch things on my TV it works fine. When I unplug it, the screen goes blue as if the iMac is switching resolutions. The problem is that is stays blue and I have to reboot to get video again.
Any ideas?
Thanks,
Matt

Hi Matt
Welcome to Discussions and Seasons Greetings
I don't know how relevant it might be but I found this in an Apple Document
http://docs.info.apple.com/article.html?artnum=86526
Some non-Apple adapters may not work exactly the same way the Apple adapters do. For example with a non-Apple adapter, when you disconnect your monitor while the computer is turned on, the Mac OS may not be able to tell you've disconnected the monitor until you put the computer to sleep and wake it up again, or until you select "Detect Displays" from the Displays pane of System Preferences.
chris

Similar Messages

Mini dvi to hdmi problems - displaying my screen on my TV

so I have an Toshiba LCD TV with an HDMI port and I'd like to be able to play videos from the internet on my TV. I have a Macbook with a mini-dvi port so I bought a mini-dvi to HDMI adapter from Amazon and an HDMI cable from Best Buy. I also have an RCA cable for audio (which works fine). After hooking up the laptop to the TV using a multitude of combinations and restarts, all I get is a flickering blue screen on my laptop when I change the TV's input to HDMI. Nothing happens on my TV screen. Any ideas on what I should do to get video? I've read I need to mirror the display but the Arrangements tab doesn't show up on the Display menu so that option doesn't seem to be available. I've messed with resolution and numerous other things and have hit a wall.
Help please!

Hey redhead,
I have the same setup. Try messing around with the cable, it might not be properly connecting. Mine is pretty finicky and can lose connection if it's not sitting "just right". Also, just in case, click on "gather windows" on the bottom of the display settings dialog box. Then check to see if the Toshiba settings dialog box shows up. If it does, that means the TV is actually connected but the resolution settings have not be properly set yet. So if "gathering windows" gets you your TV's settings window, change the resolution to "1080p" if it offers that. If it doesn't, just go through all of the resolutions until you find one that works/works best.

Mini Dvi to VGA for Projector issue

I recently bought a mini DVI to VGA adapter for my new macbook Black 2.4 ghz. When I hook this up to the projector nothing comes through, but the computer recognizes the projector. I know it is not the projector because when I plug in my 12inch powerbook it instantly recognizes the computer and displays whatever is on the screen. I even returned the adapter for a new one and am still having the problem. Is there something I'm doing wrong? Are there steps that I'm not doing, or is there something wrong with the mini dvi on my macbook?

When I attach my MacBook to a projector via mini DVI, all variations of order of activation used, the desktop image appears, but the icons and other open pages are off the screen to the right.
Of greater importance, Keynote presentations appear as two slides side by side, with a timer under the left image and no transitions.
This has happened with two portable projectors and one overhead, exactly the same images with each.

What is the solution for a "blue screen" on my 2009 OSX macbook.

I recieved what was the apparent "blue screen of death" in my 2009 OSX box. I tried unsuccessfully to fix the issue (while also replacing the RAM, probably could have been more scientific) and then eventually my wife decided I had no idea what I was doing. She then took the laptop to the Apple store and spent $200+ on a "new harddrive". This was great but didn't solve the problem want to know what the solution really was?!?!? Wait for my Answer.

The answer is to make sure they really "reformated" the harddrive. The drive was fine after using the secure reformat in disk utility. I wasted $200 because they "imaged" the disk and with it all the "corrupt" user files.
Seriously Apple, you have the records prove me wrong.
On the other side, I hope this helps someone else.

HT1338 My new mac mini is freezing to a dark blue screen every time it goes into a sleep or inactivity mode.

If I leave the computer running with Safari open and walk away for 20 or so minutes it goes to the blank, dark blue video screen with the cursor still visible and movable. The only way i've found to get back to computing is to reboot the computer manually with the on/off button.
Thank you for your assistance...j

If you have more than one user account, these instructions must be carried out as an administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Step 1
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Enter "BOOT_TIME" (without the quotes) in the search box. Note the timestamps of those log messages, which refer to the times when the system was booted. Now clear the search box and scroll back in the log to the last boot time after you had the problem. Select the messages logged before the boot, while the system was unresponsive or was failing to shut down. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message (command-V). Please include the BOOT_TIME message at the end of the log extract.
If there are runs of repeated messages, post only one example of each. Don’t post many repetitions of the same message.
When posting a log extract, be selective. In most cases, a few dozen lines are more than enough.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some private information, such as your name, may appear in the log. Anonymize before posting.
Step 2
Still in Console, look under System Diagnostic Reports for crash or panic logs, and post the entire contents of the most recent one, if any. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if present (it may not be.) Please don’t post any other kind of report — it will be very long and not helpful.

TS2570 after startup, my macbook pro goes to a blue screen and stays. this article says it won't work for the blue screen problem... any ideas?

My Macbook Pro stays on a blue sceen after start up. It won't boot into safe mode (holding down the shift key).
What do I do?

Hi Mindy, it may though, did you try it?
Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.
If 10.7.0 or later...
Bootup holding CMD+r, or the Option/alt key to boot from the Restore partition & use Disk Utility from there to Repair the Disk, then Repair Permissions.

For the blue screen at Leopard install, this tech report works for me

http://docs.info.apple.com/article.html?artnum=306857
I used the second "solution" and my system booted properly after typing in the command lines mentioned in the article.
Good luck

Restart your computer with the original install disk in the drive. Hold down on the "d" key. This will startup the computer into the Apple Hardware Test. If you can't enter the Apple Hardware Test, you have some kind of hardware failure (with the logic board or maybe with the optical drive). You should call AppleCare Support to set-up a repair. If you can get the AHT to run, go through the extended tests and see if you get an error message. If you do, again, you should call AppleCare Support and get a repair scheduled. Let them know the exact error code you saw with the AHT. If you can run the AHT and no error appears, this does not completely rule-out a hardware failure, only a failure that the utility is looking for. Let us know what you find out.
-Doug

Help with a Mac mini (Power PC) loading to a blue screen

Okay, I've been reading and it sounds like I need to put my install disc in and boot from the disc. However, there are 2 complications:
1. I already have a disc in the drive. Is there any way to eject it manually without starting the OS?
2. I don't know where my install disc is. Can I use any Mac OS install disc? Does it need to be from the same version of the OS, e.g. I had Tiger, but will a Leopard disc work?
Thanks in advance
- Phil

To get the disc out, reboot while holding the eject key down.
Depends on the Leopard disc, if it came with an iMac for instance, it will not work. The discs that you get with a machine are for that type of machine only. You can't even go back to a previous OS version for the same type machine. A retail OS upgrade disc will work fine.
Apple can supply you with a new disc or you could just buy a retail version of Leopard.

Wrong 'mini dvi to video' adapter for my 12" Powerbook 1.33

I recently bought the M9319 mini dvi - video adapter for my 12" Powerbook 1.33 to find that the mini dvi on the adapter is a different size to the one on the computer and the adapters supplied with the computer.
I've been doing a bit of research into this and it seems a bit of a grey area. Apple have not made it clear in advertising this product that it is only suitable for the newest 12" Powerbooks and even state that it will work with a 1.33 machine in their following article:
http://docs.info.apple.com/article.html?artnum=86507
Has anyone had a similar experience, or suggest an alternative product that will work? Did Apple make an older version that works with the 1.33?
Any help would be much appreciated. Thanks, Graeme.

Just took the adapter to my local Apple store and they identified it as a mini VGA to video adapter - not what it said on the packaging!
I've noticed a few posts with this problem, so just double check before you leave the store that the packaging matches the product.

HT201263 my ipad mini just quit on me. it is continously cycling from a blue screen to an apple logo screen. has anyone seen or heard of this?

My Ipad mini has started cycling through a blue screen to a logo screen ever 10 seconds or so. I can not har reboot or sync it. Any help on this would be great. Thanks

Try reset iPad
Hold down the Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appears
Note: Data will not be affected.

Radeon 9800 pro 256mb hanging on blue screen

I'm deep in the waters of frustration right now, and am hoping someone here might have the answer.
About 3 months ago I was looking for a video card for me to run motion. I saw the 9800 mac special edition with 128mb video ram had rave reviews. At that time ATI was not making them. So I turned to eBay...
I purchased a card that was advertised as a Mac 9800 pro special editing 128mb. I later found out it was a flashed pc card. The ebay seller told me the card worked fine on all his mac's that he tested it on.
The problem I was having was the machine boots up, I see the grey screen with the Apple logo and spinning wheel. I see the blue screen where normally I see the login progress bar loading the OS. But with this card I only see the blue screen. I hear the hard drive churning, so I am assuming it is still loading the OS, but I cannot see anything. I can reboot in safe mode and the video card works fine.
Well... I assumed it was the fault of the card and that it was flashed. I returned the card to the ebay seller, who sent me another one, same results with that one. I returned the card to the seller and he refunded my money.
I put the money toward the just released Radeon 9800 Pro Mac Edition 256mb card. I just got it a couple days ago and am experiencing the same problems. I have tried everything... everything I know and still can't get the card to work? Here is a list of what I have done:
With the flashed card:
1. Shut off computer and unplugged it. Removed OEM video card and installed ATI 9800 card. Plugged the power supply cable for the card into the computer power supply cable and hard drive.
Problem Occurs: When starting up, the grey screen comes up with the Apple on it, then the screen turns blue, where I typically would see the progress bar of the system loaded up before the user login screen. I only see a blue screen at this point but can hear the hard drive working for about a min.
2. Restarted the computer in safe mode.
3. Logged in as Admin user and opened the ATI preference pane to verify it sees the card.
When the ATI preference pane was loaded the following error message occured:
A startup problem has occured.
Cannot connect to ATI TVOut Kernal Extension. Some features are not available.
Clicked OK and the ATI preference pane appears.
4. Close the preference pane and reinstalled ATI Displays 4.5.6. Restarted computer.
Problem Occurs
5. Restarted computer holding down AppleOption+PR to clear PRAM. Cleared the PRAM 4 times in a row, by allowing the chime to happen 4 times.
Problem Occurs
6. Shut computer down. Disconnected the DVI plug for the cinema display and connected a VGA CRT monitor. Started computer.
Problem Occurs
7. Shut computer down, disconnected the VGA CRT monitor. Reconnected DVI plug and restarted computer.
Problem Occurs
8. Started the computer in safe mode. Logged into admin account. Opened the ATI Preference pane.
When the ATI preference pane was loaded the following error message occured:
A startup problem has occured.
Cannot connect to ATI TVOut Kernal Extension. Some features are not available.
Closed preference pane.
Went to ATI site and downloaded:
aug2005-radeo-universal-rom-update.dmg
Ran the updater.
Restarted computer.
Problem Occurs.
9. Restarted the computer in safe mode. Changed the login preference pannel to automatically log into the administrator account. Restarted computer, waited for the blue screen, then walked away for about 2 hours with the computer on blue screen, hoping the system was loading or doing something.
Problem Occurs.
10. Put in the TechTools Pro CD, hoping to run some tests on the video card from the cd. When booting from the CD OS...
Problem Occurs.
11. Enabled Root user. Logged in as root and installed ATI Displays 4.5.6 from there. Restarted computer.
Problem Occurs.
12. Shut down computer and installed old video card.
13. On an internal hard drive in the computer. Wiped the drive and formatted it. Installed 10.4.1 on the drive. booted up into the drive, installed ATI drivers, shut down computer, installed 9800 pro video card, booted up.
Problem Occurs.
With the new 9800 for Mac ATI card with 256mb:
With original card, install drivers, repairpermissions, shut down, install new card
Set to restart in single user, give 5 min to see if ATI monitor startup item in user starteputems loads
Hooked VGA & DVIt in together, both showed blue screen
Reset NVRAM via open firmware
Reset cuda button
Take battery out, wait at least 10 min, re-install new battery, press cuda button
Reinstall ATI update 4.5.6
Reset nvram from open firmware
In ATI control panel, selected 'Force Single Display Operation'
Change display scaling to 50%
Download latest Mac OS update from apple & reinstall
Help?

I get dizzy just thinking about it.
I have tried installed a brand new OS, 3 different times on a different Hard Drive, still the card doesn't work.
I had one person suggest that it may be the card is not communicating with the OS Window Drawing module? (excuse my ignorance of what that is really called. I just know there is some program, possibly in the kernel, that is responsible for drawing out the OS windows.)
How can we rule out that it is a bad AGP slot?
•The slot works fine with my 9000.
•It works in safe mode with the 9800.
•I have installed a brand new OS, three different times, still doesn't work.
•I have used Apple Hardware test to test my hardware, the AGP slot didn't report any problems.
I am assuming that the AGP slot is working. Although I worry about it a bit, because by now I have swapped cards in it about 50 times in my troubleshooting.
Here is a link to a complete list of everything I have tried:
http://www.macosx.com/help/qview.php?questionid=19554#54138

Mini-DVI to HDTV setup not working right

Hi folks,
I have an iMac8,1 (24" intel with mini-dvi video port) that I am trying to hook up to my 50" plasma TV for surfing the web and looking at photos from the sofa. I've hooked it up with an apple mini-dvi to composite/S-video adapter with very poor results. As soon as I plug the adapter into the mini-dvi port, the iMac changes to a 4:3 aspect ratio at a very low resolution. The video is mirrored to the TV, again at a 4:3 aspect ratio and the resolution is awful. Text is all but unreadable.
I try switching resolutions from the display preferences pane, but nothing seems to work right. There are two display detected...the iMac and NTSC/PAL. Changing the resolutions on either of them don't seem to behave properly at all...everything just stays really coarse on the iMac no matter what, and the TV is horribly fuzzy. If I unplug the adapter from the iMac, the screen returns to 1920x1200.
Any thoughts? Should I be using a mini-DVI to HDMI for the video instead of the composite/S-video adapter?
Steve

Hello mmogie,
The problem is not with in the adapter. The quality on the external LCD or Plasma depends the most on the graphic cards. Thats that.
And in your case your problem is the mirroring, you will get really bad quality on the external screen because you are trying to mirror it with the one on our iMac and the Plasma screen supports different resolution then your iMac does so what happens is when you mirror it the graphics cards tries to find the middle ground ...
Now what you need to do is configure the plasma as extension not as mirror (Under Display Preferences>Displays ) select the second tab "Arrangement" and uncheck the mirror Displays.
So what the graphics will do is find you nice proper resolution for your imac and your Plasma separately and you will have good quality picture, and from there you can change the resolution to tweak it a bit more...
Now to take a step further if you want your Plasma to be the primary screen for your OS X and for you to have the dock on there, run apps and browse the web, all you have to do is from the "Arrangement" tab in the Displays Preferences just point the mouse on the wthite line and click and hold to "Drag and drop" it to your second screen "the Plasma" in your case and you will see how the dock and the task bar will show on the Plasma and you take it from there....
Sorry for the long explanation, I hope this helps. Please let me know.
Good Luck,
Goran

Baffled by mini-DVI to HDMI problem

My Macbook is plugged into a LG lcd TV through mini dvi to HDMI. The Mac screen appears on the TV but without any of the icons that are on my desktop and does not change when I play a DVD or bring up photos on the Macbook. The mouse appears, but only when I move it off the Macbook screen. Anyone know if there is some easy trick I'm missing to set this up or is this as weird as it seems? Thanks.

From Mac Help:
To connect multiple displays or a projector:
Turn off the displays and the computer.
For each display you want to use, connect a video cable (and adapter, if necessary) from the video output port on your computer or graphics card to the video input port on the display. Make sure the cables are securely connected or you may not be able to see an image on the display.
Turn on the displays and computer.
When you connect multiple displays, they show the same image (called “mirroring”). With some computers, you can also set your displays to extend the desktop, so a different section of your desktop is shown on each display. You can change this setting in the Arrangement pane of Displays preferences.

Serial communication crashes with blue screen

Hello,
I have been troubleshooting an application that consistently kept crashing/hanging after ~1 to 5 minutes. I am communicating with a syringe pump NE1000 from New Era (http://www.syringepump.com). If have finally isolated the problem to a VISA write function.
Configuration:
·         DELL INSPIRON running Win7 64 Bit
·         LabVIEW 2011SP1
USB to Serial RS-232 Adapter [ GUC232A ] http://www.iogear.com/product/GUC232A/
·         The driver for the GUC232A has just been updated to the latest version, but the same behavior was observed with the older driver dating back to 2009.
·         RS232 to “telephone cable” adapter:
·         Telephone cable to RS232 port on syringe pump
I was running the NI Desktop Execution Trace Kit while running the attached Test NE100X – Query Volume.vi. The log is attached, Trace Test NE100X - Query Volume vi (1_4_2013 _ 17_06_11_423180).ttd.
When I run the vi at a loop rate of 10ms, it hangs after 15889 events. (Occasionally, Win7 crashes with the Blue Screen of Death.) I did not find anything unusual in the trace report.
After the vi hangs, it becomes unresponsive. When I attempt to exit LabVIEW, I get the Resetting VI: … message, and LabVIEW is hanging and does not exit:
If I decrease the loop rate to 50 ms and 75 ms, the vi seems to be running longer, but still crashes after about 52000 events, or 25000 events,respectively. At a loop rate of 100ms, it is was running for 51 min and then I had another Blue Screen Windows crash.
What confuses me is that the system just hangs without giving me any timeout or error message. This makes the troubleshooting very difficult. A query rate of 10 Hz seems to be rather low. I wonder whether this is a hardware issue or some bug in the software. I appreciate your help in troubleshooting this issue. Thank you.
Solved!
Go to Solution.
Attachments:
Tech Support Inquiry.zip ‏781 KB

Hi
I can see several potential problems with this code. It looks as though what you are trying to do is to send a "DIS" command to the syringe pump and are then trying to read the data that the syringe pump sends back in response to this command.
1. How many bytes are you expecting to get back in response to the DIS command? You're attempting to read 1024 bytes. If you really are expecting 1024 bytes then you need to calculate how long that would take to arrive. If we assume that you're using a data word consisting of 8 data bits, 1 stop bit and no parity then the number of bytes you will receive per second = 19200 / (8 + 1) = 2133. Therefore 1024 bytes will take 1024/2133 seconds = 0.48 sec. Therefore there is no point having a loop rate of 10msec. 0.5 seconds would be better.
2. You haven't included the vi that initialises the serial comms so I can't see what timeout value you've assigned. You need to check that it is greater than the time it's going to take for your data to arrive.
3. If you're not expecting exactly 1024 bytes then you need a different strategy for reading back the data. Possible options are i) counting exactly how many bytes you actually do get and using that number in the byte count input, ii)reading data continuously in a small loop until a terminating character is seen. eg if a CRLF is returned at the end of the data, read continuously until you see this. I've attached a modified version of your vi that shows how to implement this last method.
regards
Mike

Blue screen errors

I have read through some of the Blue Screen error discussions but they are different to mine. I am experiencing a Blue screen error, quite often, several times a week - sometimes twice in one day. Sometimes when starting up, sometimes whilst in the middle of doing something - which can be anything from writing an email to browsing the internet. I do not play games on my computer. I have tried taking the computer back to factory settings incase it was one of my photo packages but it is still happening. Can anyone help? It does say about trying the "disenable Bios memory - caching/shadowing. I was going to try this as a last resort but cannot seem to find where the option is to turn it off. Maybe someone can help with this. I have an HP Pavilion desktop and I have tried going into the advance settings before start-up where it should be listed but can't seem to find it there...
any ideas, help would be much appreciated.
Gar123

When requesting assistance, please provide the complete model name and/or product number of the HP computer in question. HP/Compaq makes thousands of models of computers. Without this information it may be difficult or impossible to assist you in resolving your issue.
The above requested information can be found on the side, back or bottom of the computer. Please do not include the serial number. Please enter the model/product information into HP's Online Consumer Support page and/or post it here for our review.
If you have any further questions, please don't hesitate to ask.
Please click the white KUDOS star to show your appreciation
Frank
{------------ Please click the "White Kudos" Thumbs Up to say THANKS for helping.
Please click the "Accept As Solution" on my post, if my assistance has solved your issue. ------------V
This is a user supported forum. I am a volunteer and I don't work for HP.
HP 15t-j100 (on loan from HP)
HP 13 Split x2 (on loan from HP)
HP Slate8 Pro (on loan from HP)
HP a1632x - Windows 7, 4GB RAM, AMD Radeon HD 6450
HP p6130y - Windows 7, 8GB RAM, AMD Radeon HD 6450
HP p6320y - Windows 7, 8GB RAM, NVIDIA GT 240
HP p7-1026 - Windows 7, 6GB RAM, AMD Radeon HD 6450
HP p6787c - Windows 7, 8GB RAM, NVIDIA GT 240

Mini-DVI Unplugged Makes for a Blue Screen

Similar Messages

Maybe you are looking for