Connecting problems imac flat screen to external monitor

My imac flat panel screen is dark, tried hooking up exterior monitor with proper adapter and exterior monitor says in power save mode press any key or move mouse but still no picture?

Sounds ominous. When an external display fails to show up anything, that usually indicates that the video hardware on the logic board has failed. Were ony the display or its cabling at fault but the logic board hardware was working, the external should still show something.

Similar Messages

Problems connecting my MacBook Pro to an external monitor

For the past 2 years, I have regularly connected my MacBook Pro to an external monitor (Dell SR2320L) using a VGA cable. When I do so, the picture automatically comes up in the maximum resolution of the external monitor (1920 x 1080). However, just in the past few weeks, the picture on my external monitor automatically comes up in 1600 x 1200 instead. When I click on the display menu in the upper right corner of my screen, there isn't even an option for 1920 x 1080 anymore. I've tried restarting my computer and even unplugging and replugging in the cable, but nothing seems to fix the problem. However, on at least some occasions, the problem seems to fix itself after about a day or so of use, and the picture reverts back to 1920 x 1080. I should note a couple of things: when I connect another MacBook to my monitor, the display automatically comes up in 1920 x 1080. And when I connect my Macbook to a different display, I have the same problem as I have with my display. So I think the issue is definitely with my computer, not my monitor. Does anyone have a suggestion about how to solve this problem? Or, when the problem arises, is there anything I can do to reset the display to 1920 x 1080 other than waiting for the problem to fix itself? Any suggestions woudl be greatly appreciated!

Hi bonfig,
If you are having issues with the external display settings on your MacBook Pro, it may be worth going throught the following article, in particular the portion about resetting the SMC and PRAM:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
Cheers,
- Brenden

T61 display problem on both Internal and External monitors

Hi,
I have Lenovo T61 of Type 7662, Model CTO. One month back the right hinge of my laptop has broken. Now the display on the screen is not at all readable. If I reboot the laptop, it is getting loaded, but the display on the screen is not readable and also it is displaying 4 windows without any clear visibility.
I thought the problem may be with the LCD cable under Right hinge. So, I tried to check this with an external monitor. But, the same problem is occurring on the external monitor also. So, I couldn't find what exactly the problem is. If anybody has this kind of problem, please help me on fixing this issue.
Thanks,
RamPap.

well the GPU issue is fixable under free repair, but given that your hinge is broken, not sure whether the free warranty applies in this case.
Basically you need a new motherboard.
Also, can you post a picture of the condition of the hinge? (upload it to tinypic or flickr, then link it here).
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

How do I use my late 2011 iMac ( with thunderbolt) as external monitor for laptop/Xbox or other device with hdmi as output.

May be this question has been asked thousand times. how do I use my mid 2011 iMac ( with thunderbolt) as external monitor for laptop/Xbox or other device with hdmi as output. if apple hasn't removed that feature and has just moved that functinoality to thunderbolt then how can I use it. currently there is no laptop available with thunderbolt output. no 3rd party converter available. whats the use of having feature on latest functionality if we cant use it. I wish they would have made one port has mini-dvi and other thunderbolt for backward compatibility untill some vendor comes up with converter.

It Says :
Mac (21.5-inch, Mid 2011) and iMac (27-inch, Mid 2011) and later computers support Target Display Mode via Thunderbolt to Thunderbolt cable (2 m) when the source is another Thunderbolt-equipped computer.
Name one computer model/vendor which has thunderbolt as output for display + audio. this is so stupid to move to new technology without availbility of its compatible devices.

IMAC 27 inch as external monitor for PC issue

I'm not able to use the iMAC 27 inch as external monitor with my PC which has ATI 5870 graphic card. I use DP (displayport)-> miniDP cable. Any help?
Thank you.
M

It appears that none of the ATI HD 5XXX series cards are compatible with the iMac unless they have a mini displayport connector (ie eyefinity models and the $700 HD 5970). The ATI HD 4xxx models with the full size display port do seem to work also. I am curious as to whether this incompatibility carried over into the new iMac models....

Hi, I was given an iMac Flat Screen over the weekend, it turned on ok, this morning when i turned it on there is a circle with a flashing ?, what does this mean, help!

Hi, I was given an iMac Flat Screen over the weekend, it turned on ok, this morning when i turned it on there is a circle with a flashing ?, what does this mean, help!

It means that it cannot locate the operating system.
You need to reinstall from the disks that came with the iMac and which the vendor is required to give you.

Connect to VGA-flat screen monitor ?

my ibook G3 (dual USB) has a RGB display, out , I m not sure which adapter to get to have to connect to a standard dell VGA-flat screen monitor ?
second question:
how do you increase screen brightness? it is so dim,have to squint to see screen

It takes a VGA (RGB) cable to connect to an external monitor.
http://support.apple.com/kb/HT2721?viewlocale=en_US
As for the second question, have you tried resetting the PMU? The PMU (Power Management Unit) has control over the backlight function, so resetting it may help.

Help please? problems with screen resolution & external monitor

had a look around this forum and seen many questions about screen resolution when connecting to an external monitor but unfortunately, non that help me answer my problem.
got a brand new macbook a few months ago and today bought a HP v220 22" external monitor.
I am new to the idea of external monitors and am unsure what i am doing wrong settings-wise. it seems that no matter what resolution i set either my macbook display, or the external monitor display to. the external monitor is still not sharp.
Im not sure how to explain what i need but basically i need it to be so that things appear on the external the same size as they do on my macbook screen, so that i will have more space to work in on my external monitor (i am a graphics student) but at the moment what appears on the monitor is lieterally just a magnified version of my macbook screen, hence it lacks clarity.
the highest resolution offered in the menu for my macbook screen is 1280x800 and my external is recommended to be set at 1680x1050.
what settings should i have to get the resolution right?
i will be so so grateful if you can help. i think ive tried every single display setting but to no avail. so please help me!

The 13.3" screen on the MacBook running at 1280 x 800 will have a ppi (pixels per inch) of around 113. A 22" monitor running 1680 x 1050 will have a ppi of around 90. So it is natural that it will look magnified compared with the MacBook. The two displays have different a pixel pitch.
Since there are no monitors with ~113 ppi out there in the market, what you want to do with having the same size and sharpness between the MB and a monitor will not be possible.
If you ran the MB's screen at 1024 x 640 (not even sure if that is an available choice), then the two screens would match in terms of "magnification." But the MB isn't going to look very sharp running such a low, non-native format.

IMac Boot to an External Monitor Instead of Main Screen

Hi,
I have an external monitor connected to my iMac. I am currently mirroring my desktop. However, I was wondering if anyone knows of a way to have the iMac use the external lcd monitor as the primary display? Also, is there a way to tell the iMac to boot to the external and dim the original display?
Thanks!

Hi Iafilmguru,
Just to elaborate on the post above, click open display preferences, select arrangement tab, now in the pane that shows the 2 displays, you will see the actual (white) title bar in one of the displays, simply drag this over to the other display that you want to use as the main monitor. Now you will have the option of using what resolution you want to use, what screensaver and wallpaper you want for each display! Good luck!
Regards
Stu

Problem with T61 and DVI External Monitor (via Advanced Mini-Dock)

Ever since I upgraded to Vista SP1 on my ThinkPad T61 (with an Intel integrated 965 series graphics card), I've been having problems when I try to use an external monitor via the DVI port in my Advanced Mini-dock. I'm curious if other people have experienced this problem.
The problems surfaces when I first boot up, or sometimes after my ThinkPad has been running for awhile (particularly when I do something graphics related, such as right-clicking to open display properties). The picture starts to flicker (or disappear and reappear, like the screen does when changing graphics resolutions). I also hear the "ba-bum" sound that you hear when disconnecting a piece of hardware, followed by the "bum-ba" reconnection sound - these two sounds happen repeatedly (sometimes as fast as once per second). If I don't do anything, sometimes I'll get a bluescreen.
Not long ago, I found a fix of sorts: to stop the flickering/reconnecting, I just open Task Manager and stop the process called "igfxpers" (an Intel driver problem). The problem always disappears after I do this, although I have to remember to do it every time I reboot or else the problem comes back. So it's not an ideal fix.
This problem doesn't happen when I connect an external monitor using the analog VGA port, or when I'm just using the notebook LCD. It's limited to just the DVI connection. I've tried two different digital monitors (one LG, the other BenQ) as well as two DVI cables - the problem is still the same. So it seems like a driver problem of some sort - unfortunately, the Intel drivers haven't been updated since last February.
I should also note that I've tried reinstalling my OS two or three times, and the problem always comes back. Has anyone else had this problem, and is a fix on the way?

Error Message:
Input signal out of range. Translation:
You will see this on an otherwise blank screen. Assuming that the data cable is plugged in correctly, the video card is feeding the monitor a signal stream in excess of what the monitor can accommodate. The two main causes for this are that the user has set either the resolution or the vertical frequency rate too high. For example, you might set a new graphics card to display at 1,280 x 1,024, but if the monitor is only capable of 1,024 x 768 resolution, you’ll get a Sync Out of Range error. This is especially common in 14-inch monitors.
Solution:
Because you obviously can’t make settings changes from within regular Windows, you’ll need to reboot into Windows Safe Mode. When you restart the system, there is a point during boot up when the system switches from reporting diagnostics and detected components to loading Windows. This point is usually accompanied by a beep and the screen going black. Just before this point, you want to start repeatedly pressing the F8 key. This should bring up a menu of Windows boot options. The one you want to pick is Safe Mode.
From Safe Mode right-click the Desktop and select Properties. Go to the Settings tab and use the slider to drop your resolution a notch or two. Reboot and let Windows try to go into Normal mode. If this still doesn’t work, go back into Safe Mode and get to the Settings tab of Display Properties. Click the Advanced button, go to the Monitor tab, and check your refresh rate. The lowest advisable rate is usually 60Hz, although this works better for LCDs (liquid-crystal displays) than CRTs (cathode ray tubes). Apply the change and reboot.

How to connect a lenovo c200 to an external monitor

Hi to all!
I'm carlo from italy and I need your help.
I have a lenovo 3000 C200 type8922
my screen is broken (see a small black circula area (I close the lapton and a pen was in) with different vertical lines with grey, gree, violet and black colors. If i move the mouse i could see these lines move but i don't see the arrow, i don't see nothing clearly. The pc works because I can turn on or turn off using keyboard tips.
I tried to connect it with a monitor (VGAcable) and with a tv (svideo cable) tusing fn+F7 function but nothing!
Fn+F7 doesn't works and I don't know why, How i can fix this problem? any tips?
thank you in advance

To get the display on external monitor as it does not need the extra configuration unless some additional feature is required.
I suggest you to connect the external 15" or 17" monitor with display port and transfer the display once you start the laptop do not wait for Windows screen to appear.
Best would be make the laptop boot into BIOS and then transfer the display to external monitor.
Best Regards,
Tanuj
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution".! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
Follow @LenovoForums on Twitter!

IMac does not recognize external monitor using Mini Display Port to HDMI

Hello,
I have been trying to get an external monitor (HDTV) set up for use with my iMac using a Mini Display Port to HDMI cable I just got. However, when I connect it to my iMac's mini display port, the imac's screen goes black for about a second, then returns, but it does not detect the external display. The other display is just showing a "no signal" message on the screen.
I have restarted, reset PRAM, connected and disconnected the cable several times, tried changing the resolution on the imac, plugged in/out the other display, and clicked the "detect displays" button using the option key in display preferences, but nothing has worked.
I am using an early 2009 iMac running Mavericks.
I've been using the AirParrot app, but it's horrible for video and a little slow.
Can anyone please help sort the issue here? I feel like ive exhausted everything that I know to do.
Thanks.

I am having the same issue. Hope Apple can fix this soon!!!

Is it possible to use the iMac display as en external monitor?

I want to connect my powerbook up to an iMac using the display as an external monitor for the laptop. Is this even possible? Any feedback would be appreciated.

Hello,
I've seen this post at least a hundred times. Has
anyone actually had the gusto to try this idea?
I don't remember where the page was. But, I posted it's link several months ago in the forums during another discussion.
But, the guy who had done it to his iMac G3 had very poorly documented his conversion.
Basically, he took and wired signal to same signal on the monitor, and adapted his power supply and other items to work properly in the modified setup.
So, it is possible. You just need to sit down with the schematics and wire signal to same signal, and make sure you account for all the variables. It may take some resistors, etc. to get the adaptation just right.
I don't have any reason to do it myself, so I'm not going to tinker with it.
If I remembered the link, I'd post it. But, it wouldn't do much good anyway since his HTML formatting was severely messed-up. The end-result was accurate information that was scrambled around on the screen in such a way that you couldn't decipher it anyway. If he had done the HTML work properly, it would be in a formatted table. But, instead the information was scattered all over the screen in an illogical format. So, it wasn't of much real use.

Macbook Pro - Black screen and external monitor

Hi there,
I'm new here and it would be great if anybody could give me some advice about my Macbook Pro issue. First of all, I would like to thank all the contributors for your comments. I'll go to an Apple Store asap, but I'll really appreciate any of your comments so I'll know more about this issue and how to manage it.
My device details are:
Macbook Pro / 2.8 GHz Intel Core i7 / 4GB 1067 MHz DDR3 / Macintosh HD / Mac OS X 10.6.8
NVIDIA GeForce GT 330M
Other connected equipment:
HP Monitor Pavilion 22xi (with an official Apple adapter - projector's plug)
Wacom tablet Bamboo Fun (USB connection)
I usually work with graphics software (Illustrator, Photoshop, etc.), since I bought my laptop (3-4 years ago) it has worked faultlessly. But I started to notice some problems about two weeks ago. The problem is basically always the same: After some hours of work, suddenly and randomly (it tends to happen when I click on a button) the screen turns off but the computer is still running (I can hear the fan and hard disk). As I said I use an external monitor, and it also turns off at the same time. That's why I thought it may not be a problem with the screen, it's probably related to the graphics card ?¿?
The troubleshooting steps that I've tried are:
After waiting several minutes and without any response, I have to restart my laptop. When it turns on a Panic Report message pops up. It says that a severe problem made me turn the laptop off suddenly (or something like that). The Panic Report says something about "kernel_task", I have no idea what it is, just in case it could help to clarify more (I've printed all these panic reports).
I also have to mention that this laptop gets really hot on the left side, which I reckon it's a very common thing in these devices. I have to use a desktop electric fan to provide relief to both of us
I've also disable the "Automatic graphics switching" tab in Energy Saver menu.
Despite all of this, the screen and the external monitor are still turning off.
Any idea?
Thanks a lot,
Clara

I would suggest that you run AHT using Using Apple Hardware Test. You can either reboot the machine and press the D key, or use your second Grey disk. This would potentially show you any HW problems.
Typically these older machines exhibit GPU issues. There is a third-party application called gfxCardStatus, that can provide some insight as well.
This may or may not help if there are GPU issues - About NVRAM and PRAM (reset NVRAM/PRAM/SMC).
It is possible to enable remote access (via SSH) and even if the screen is not working, the machine can be accessed remotely. Please see System Preferences -> Sharing.
Can you run a test with both the lid of the MBP and the external monitor plugged in. Does your external monitor disconnect, but the internal one still show a screen?

Connecting problems imac flat screen to external monitor

Similar Messages

Maybe you are looking for