My 21" Imac has display problems

I have a problem with my 21" Imac display when moving Icons the diplay image become corrupt

I'm not sure what you mean. Reply in more detail.

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My new MacBook Pro has display problems

I am new to Mac. I had purchased a brand new MacBook Pro 13 inches with i7 processor on April2 this year, Within 10 days the display screen started to grey out and later on develop horizontal lines. I telephoned Apple support and when a telephonic solution became unlikely I was asked to take it to an Apple Authorized service centre in my town. The technician there could not clearly explain to me what was wrong with the system, but I understood him to say that he has reinstalled the graphics driver and the system was trouble free for a prolonged time thereafter (at the service centre). I also understood him to say that should the problem recur again, he would have to replace the motherboard. I was on a travelling tour for a week after this and was not able to test out this repair (I took my old windows system with me for the travel) To my utter dismay the problem has recurred again after 28 days of purchase. I have attached screenshots. The button for uploaing videos is greyed out therefore I will have to restrict myself to screenshots. All the three screen images occcur
in turn and the system becomes unusable and I have to use the poweroff button. The display problems start within 10 minutes of switiching on the system.
I took some time to discover these forums. The first time this problem occurred on my machin I posted this problem on mac-forums and I was advised to take it to an Apple store and let the apple genius bar worry about this one. I do not live wihtin any sort of manageable distance from such a place and the repair centre is an Apple Authorized Service Provider
Coming to the emotional aspects of this technological glitch. I feel like I have been hit by a truck.I had saved and scraped pennies to buy this dream machine and I believed I was escaping the ficleness of windows. But no windows system of mine (I have three) become so unusable
Will I have to spend time and effort to lug this machine to service centre to replace each of its component parts one by one ? Can I ever trust this machine to provide a presentation to an audience? What sort of an impression will I create if the system plays this trick on me in the middle of some presentation?

Shootis007, What is CC company? I googled CC and got many different answers.
I called Apple Support and told them my story and pressed for replacement and they told me repeatedly that there is no policy for replacement. The initial support person who attended my call asked me to take it to the seller and ask the seller for replacement. I dont think that is the way to go. I dont know what is his fault. He gave me a brand new system, the package was opened by me. Since I am new to Mac, I had taken a Mac user friend with me who showed me how to get started (right there in the shop) Neither the experienced Mac user friend nor I felt anything remiss at that time or later at the Seller level. Nevertheless I called the reseller and he explained his helplessness. I dont think it his fault at all.
Since I kept insisting on replacment I was put through to another support person who took pains to reassure me that I should get the defective part replaced and thereafter all will be well. For now I trust him. I have no other alternative
I really am puzzled. All you dear Mac users should know that the machine I dreamed of and really saved to purchase is giving me no end of troubles whereas my three windows machines sit there with their numerous stated deficiencies but gives me uninterrupted service

IMac 24" Display problem

Hi,
Im having display problem with my iMac 24" Early 2008.
http://www.hockeystat.net/video.jpg
I cant boot, after 20 seconds the OS freeze.
I ran a full diagnostic with the Hardware Test...no error.
http://www.hockeystat.net/video_test.jpg
Any idea ?
Thank you
Luc

1 - connect an external display; if the external display works ok then there may be a problem with your iMac's display panel or perhaps the inverter board. If the external display does not work then the problem may be with the graphics chip on the logic board.
2 - try booting from the OS X installation DVD? Will it boot that way?
3 - did you recently upgrade to Snow Leopard? If so, did this problem start immediately after upgrading? If you upgraded, did you do an erase & install; or an archive & install?
4 - do you have AppleCare coverage?

IMac has redraw problems & hangs on wake, if set to non-standard screen res

I've run into an odd problem/bug that I have not seen described anywhere else, and wondered if anyone had any insight advice. It seems to me that there may be a bug in the driver for the GT130 graphics card in the new iMacs.
This is on a brand new 2009 24" iMac that has been upgraded, via build-to-order to a GT130 graphics card.
If I set the screen resolution to something other than the default 1920x1200 (for example, 1600x1000), then put the machine to sleep, then, upon waking, the system displays redraw glitches and then becomes completely non-responsive, requiring the machine to be powered down.
Specifically, when the machine wakes, the mouse moves initially, but the system doesn't respond, things redraw in the wrong place (parts of menus and windows), the screen sometimes flickers for a few seconds, and then the mouse changes to the spinning beach ball and just stays there.
I've checked disk permissions, reset PRAM, and reset the PMU, but nothing helped. I've only tried this on this one machine, which, as I said, has a GT130 graphics card.
Everything works fine if the machine is at standard resolution (1920x1200), but this problem happen s if it's been set to other resolutions.
Thanks

I run 1680x1050 through DVI with no problems. I used to have to specify a modeline, but that was always tricky...some worked, some didn't, and I never knew which one was the "correct" mode. Anyway, with the newer releases of Xorg (probably around 5-6 months ago), I don't have to specify a modeline at all.
As Shaika-Dzari mentioned, you do have to specify the proper horizontal sync and vertical refresh though. For an example, here is the relevant portion of my <code>xorg.conf</code> file (and my graphics card stuff too, for clarification):
Section "Monitor"
Identifier "Monitor0"
VendorName "Dell"
ModelName "UltraSharp 2005FPW"
HorizSync 30.0 - 83.0
VertRefresh 56.0 - 75.0
Option "DPMS" "true"
EndSection
Section "Device"
Identifier "Card0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 6200"
Option "HWCursor" "off"
Option "IgnoreDisplayDevices" "CRT, TV"
Option "NoLogo" "true"
Option "NvAgp" "1"
Option "RenderAccel" "true"
Option "AllowGLXWithComposite" "true"
EndSection
Section "Extensions"
Option "Composite" "Enable"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1680x1050"
EndSubSection
EndSection

24"imac with display problems

I purchased my iMac from the local apple store on august 31st, that night after about 2 hours of use I noticed the screen had become quite pixelated I rebooted and everything was fine. Since that day I have had many of the same occurences. I have an appointment tomorrow with the local apple store to hopefully get this resolved. Has anyone else had similar problems? I have taken some pictures to show them at the apple store.
http://gallery.mac.com/zdessa#100003
Message was edited by: dc297spec

Hi, I have the same Problem with my iMac 24" 2.8 GHz. I used Rapid Weaver and suddenly there were a "pixelstorm" on my screen. I rebooted the mac and it worked perfect. But after a while using Rapid Weaver the screen turned off completely. That happend twice.
The Problem is, that this seems to be a fault in a lot of the new iMacs. A friend had the same Pixelstorm and sent the iMac back. Tomorrow he will get the replaced Mac.
Here you can see, what happens on his screen:
http://www.ulf-bellersheim.de/imac.AVI
http://www.ulf-bellersheim.de/imac.JPG
http://www.ulf-bellersheim.de/imac2.AVI

IMac ghost display problems (and apple technicians weren't able to solve)

Hi,
So my problem here is quite weird. I tried researching the forum for something like this, but nothing really came close to whats happening to my iMac.
I have an Intel-Based iMac, 24 inch screen.
I bought it on 2008. Since late 2008/early 2009, i had these weird "letters" underneath all my pictures. I work with photography/video editing, so this was very annoying, yet i kept ignoring, since the rest was working fine.
Then slowly the iMac ran slower, more sluggish-y. Like if all life was sucked out of it, sort of description.
Then, 2 months ago, there was a total failure of the HD. I was lucky to be able to back up all, before it didnt let me even enter the computer. It would just think for hours.
I brought it to the technical support near to my home, and i also told them about those weird "letters" on the left side of my screen. They said it was due to my hard disk, and i was, ok...since the hard disk had a failure.
They did a check up, and yep, the hard disk was k.o, evidently. They replaced the hard disk, and told me all was fine.
It did "seem" fine for the first couple days. No more running slow, no weird letters that would distort my pictures (for example, i could see my iTunes music list underneath a picture i was working on photoshop, or a video i was displaying!).
After a couple of days...same story started again. The left side of the screen was flooded by all underneath (open windows, the desktop icons, the texts i had open on safari, basically anything would appear translucently underneath any image or video i would open). Then, flash player would crash every 3 videos, blank cd's would get automatically ejected so i couldnt burn any cd, computer would run slow etc... etc...
So i cleaned up my computer, did a back up, erased all, and ready to bring it up to technical support again. And misteriously, all symptoms disappeared. So i explained to them what happened, and they said probably it was the graphic card.
I thought finally my problem was solved.
24 hrs later, i got an email that my computer was fixed. That it was only a hard disk "permits" issue, and they solved it.
I have had the computer for 3 days, and the screen problem is starting again, and now the permits are perfectly fine in my computer, and nothing comes out as wrong in the diagnostics tool!!!!
I didnt even work with the computer, but now i can see my itunes list through the safari window, as grey letters....kinda 3D, popping out. Its very weird. And i cant capture it because when i take a screen capture, it all appears fine.
Left side of screen is the affected. And no, its not a condensation issue.
Also, i can see some lines when i start up the computer. On the grey screen portion of the start up.
I dont know what it can be anymore. I know this is a long post, but i had to explain all what happened to it.
Any help would be great.
Thanks

You might want to clean up your profile. An iMac G5 will not run Mac OS X 10.6.4!
My experience with things appearing on screen but not in a screen capture is that it is on the display itself and not involving the GPU.
I think that you have image persistence, similar to CRT burn in. It is caused by having the same image appear in the same location over long periods of time, like a Safari window always in the same location, or an iTunes window, etc. The pixels get stuck showing that image.
There are different little apps that folks have developed to get the pixels unstuck. Google LCD image persistence and you can find a number of them.
Here is one suggestion;
http://www.jscreenfix.com/
Dah•veed

Intel iMac 24 display problem with colours

Hi,
Tonight for no apparent reason my imac screen has gone weird. The colours are reversed with black becoming white and vice versa.
Restart - no change
Display resolution - changed but made no effect
Ran CD hardware diagnostic to no avail
Weird thing - when I boot up in Windows its fine.
When I log in with another account name its fine
Please help

Beatsuite.com:
Check Universal Access in System Preferences and see if white on black is checked instead of black on white under Display. If not that then I don't know.

Why sometimes my iMac has a problem at the start? With impossibility to access the wi-fi

I bought this iMac in the Apple Store in Bologna the 10th, and three days later it started to have this problem. Sometimes when I launch it, it appears a loading bar, and after a selection of the user (i do have only one user!), then, it doesn't recognise any Wi-Fi network, and I am obliged to restart the iMac. At the restart, it all goes perfectly. HELP

I bought this iMac in the Apple Store in Bologna the 10th, and three days later it started to have this problem. Sometimes when I launch it, it appears a loading bar, and after a selection of the user (i do have only one user!), then, it doesn't recognise any Wi-Fi network, and I am obliged to restart the iMac. At the restart, it all goes perfectly. HELP

IMac external display problem

Hi,
I have a spare 22" 1080p tv sitting around so I tried to set it up as an external display for my 21.5" iMac. I was able to get it working (MDP to HDMI) but the resolution and color is not so great, and when I look at the external display in System Profiler it says something about it being a tv (which it is). My question is can I do anything better than what I have experienced so far? Thanks for the help,
rc
Note - I also tried running the Color Profile app that appears on the external display and while it did improve it some once I clicked on save it never seemed to stick...

Go to: System Preferences > Displays select the Color tab > uncheck "Show profiles for this display only" and try one of the RGB profiles to see if it is better for you.
Then if you are not happy with one of those..? Try Selecting, Calibrating and Saving a different Profile, other than the default one offered for that monitor.

IMac as Display problem

Hi all. I have an issue and would like to know if it can be resolved easily.
My iMac 2009 has major issues. I tried to reformat the drive and reinstall the system but the installation fails every time. I replaced the internal drive but still no installation was possible. An external drive with a system works, but the iMac is extremely slow and can take 10 minutes just to open an app. It was very slow with an internal drive when it was working anyway.
I resolved to by a Macbook Pro and use the iMac as a monitor (27 in) using a Thunderbolt cable. But it seems that without a system attached to the iMac, it keeps looking for a system and I cannot use it as a monitor.
You could say that I only need to let the external drive with a system connected to it and it will work, but is there a way to make it work without practically losing my drive? Is there a key that I could use so it stops looking for a system for example?
Thanks for any help.

Hi all. I have an issue and would like to know if it can be resolved easily.
My iMac 2009 has major issues. I tried to reformat the drive and reinstall the system but the installation fails every time. I replaced the internal drive but still no installation was possible. An external drive with a system works, but the iMac is extremely slow and can take 10 minutes just to open an app. It was very slow with an internal drive when it was working anyway.
I resolved to by a Macbook Pro and use the iMac as a monitor (27 in) using a Thunderbolt cable. But it seems that without a system attached to the iMac, it keeps looking for a system and I cannot use it as a monitor.
You could say that I only need to let the external drive with a system connected to it and it will work, but is there a way to make it work without practically losing my drive? Is there a key that I could use so it stops looking for a system for example?
Thanks for any help.

Latest Firefox version has display problems

Hello guys,
There is a major issue with the latest Firefox version for Android.
most of the times it displyas half-black web pages.
This is not related to a specific website.
also sometimes, when i click links, they are not responding. actually, in older versions, at least when you click a link, it vibrates and make sound.
please fix these issues. firefox was great. why did you ruin it with these updates. they were unecessary.
regards
Bulbul

What device are you using Firefox for Android on (Device model, Android version, etc.)
Have you tried deleting and reinstalling Firefox?

Since I updated to iCloud, Mail on my MacBookPro 10.6.8 has been unable to connect to MobileMe more than once or twice per day. Mail on my iPhone 4 has no problems. What's wrong?

Since I updated to iCloud, (which may or may not be related) Mail on my MacBookPro 10.6.8 has been unable to connect to MobileMe more than once or twice per day. Mail on my iPhone 4 and my old iMac has no problems. When there is no service a yellow warning triangle appears adjacent to the Inbox and Connection Doctor reports,"Trying to log into this MobileMe IMAP account failed. Verify that username and password are correct." Since it does fetch Mail from time to time they cannot be wrong.... can they? Should I update to 10.7 and if so what does that entail?

You have been using MobileMe's email settings, which sometimes continue to work for a time after migration but then get turned off. iCloud's mail server settings are different. Strictly speaking Lion 10.7.2 is required for iCloud, and on that Mail is set up automatically.
Snow Leopard cannot access most of iCloud's facilities, however you can set Mail up manually to access your email. The method is described here:
http://www.wilmut.webspace.virginmedia.com/notes/icloudmail.html
The situation with iCloud and Snow Leopard is described in detail here:
http://www.wilmut.webspace.virginmedia.com/notes/icloudSL.html

Display Problem with my Mac Pro and LG Flatron Wide Monitor in Mountain Lion

After upgrading to Mountain Lion, my Mac Pro has display problems with my LG Flatron display. The image is displayed with a black bar on the right and on the bottom. And the left side of the content is not visible. I tried every resolution available in the Display System Preferences, they are different in terms of how big the black bars are, and what part is not visible, but none of them are correct. I held down the option key to try to detect displays or switch to resolutions that are not normally available. When I restart the image is lined up with the display, but if the display ever goes to sleep or gets turned off, the image reverts to being off center, and the only way I can get it back is to restart... The interesting thing is that this monitor works fine with the same machine if I reboot using BootCamp into Windows 7. The Monitor also works fine, connecting the same connector to a Mac Mini, although that mac mini is running 10.6 and not Mountain Lion. I've reset the SMC and restarted countless times, I don't see any other levers to pull or things to try...

That card is for a PC it may not give you Startup and Option-Boot screens.
The 7950 "Mac Edition" card has a very distinctive look:
http://www.sapphiretech.com/presentation/product/product_index.aspx?cid=1&gid=3& sgid=1157&pid=1777&psn=&leg=0&lid=1

Display problem in JRE1.5 same works with 1.4.2

I have a complex swing GUI code with JTree that has display problem. The code works well with JRE1.4.2. When opened with JRE1.5_<> the display is not working. Resizing with a mouse displays though. Programmatic resize doesn't work.

I suggest you compile with 1.5 using the appropriate values of the -source and -target options to the javac command that cause it to emit 1.4 code - and see what happens.
And also review the changes and bug fixes made between the two Java versions that you're comparing, looking for changes that account for the difference you're seeing.

Display problem, new motherboard.

I am posting really to vent. I have a sick iMac with display problems. It's got vertical white lines and loss of colors. ChumpUSA indicates that the motherboard will need to be replaced and it's going to take four to five business days to get the part.
I purchased the iMac for a client who I encouraged to switch. They trust me and have purchased two other Macs. They are doing fine, so they aren't soured yet. It's a difficult position in which to find myself. Computers have trouble and need to be fixed, knock wood, I've had very few hardware problems in my 10+ years using Apple products.
I'm just in a bad spot with the failure of the motherboard (poor quality?) and the length of time my client is without a computer for one of his employees.
We will work around it, of course. I just don't see why it would take a week to get a part.
Any advise or words of encouragement are appreciated.

Sorted myself but will post solution in case others need it.
Remembered what I had done ages ago when looking at how to stop all recent pages appearing on a new tab.
To get new SEARCHES appearing in a new tab go to address bar and type
about:config.................ignore the Dragons
then go to browser:search:openintab and set to true

My 21" Imac has display problems

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