2006 24" iMAC screen smear issue

I have a 24" iMAC from mid 2006 that has been working great. The HD went out a couple months ago and I had it replaced at the apple store. After I got the machine back I noticed some faint streaks running from the right middle to the middle lower of the screen. The tech at the apple store said it was burn in, but it wasn't there before the HD swap. It seems to be on the inside of the screen, is there a clear cover panel over the actual LCD screen, or is what you can touch the LCD. For all the world it looks like a smear left by a cleaning rag. Screen shot will not show it but I did take a photo of it. Anyone know what this might be. A photo of the lines can be seen here http://idisk.mac.com/silverxrider/Public/screen.JPG

Hello and Welcome to Apple Discussions.
Backlight bleeding isn't right. I'm afraid you should contact Apple once more.
mrtotes

Similar Messages

2008 24" iMac screen freeze issue? Is there a recall?

Hello, I have a late 2008 24" imac 2.8ghz ati 2600 running mavericks, sometimes i get solid colors or rainbow paterns or other digital artifacts that freeze and require a hard boot. Is this a recall issue? there seems to be many with this problem, no kext work, Clean installed downgrading OS, pram flashing or any other solution seems to work, it doesnt seem related to heat and happens seemingly at random whether iunder load or not. It's done this since I got it but I was stationed overseas and nothing could be done at the time, of course now I'm a full time student on a fixed GI stipend and can't replace my computer. If so many people have this issue, and it appears to be hardware/manufacture related, why can I find nothing about a recall?

Hello, I have a late 2008 24" imac 2.8ghz ati 2600 running mavericks, sometimes i get solid colors or rainbow paterns or other digital artifacts that freeze and require a hard boot. Is this a recall issue? there seems to be many with this problem, no kext work, Clean installed downgrading OS, pram flashing or any other solution seems to work, it doesnt seem related to heat and happens seemingly at random whether iunder load or not. It's done this since I got it but I was stationed overseas and nothing could be done at the time, of course now I'm a full time student on a fixed GI stipend and can't replace my computer. If so many people have this issue, and it appears to be hardware/manufacture related, why can I find nothing about a recall?

Late 2006, 24" iMac, 2.16 GHz Intel Core 2 Duo, Screen Tearing, nVidia 7300

Late 2006, 24" iMac, 2.16 GHz Intel Core 2 Duo, Screen Tearing, nVidia GeForce 7300 GT
I've been suffering with screen tearing, strange screen artifacts, etc. followed by totally unresponsive freezing machine. This problem has been happening to varying degrees for about 9 months.
Initially, I was able to mitigate the problem with smcFanControl. Adjusting the fan speeds up helped keep the machine cool and prevent most of the problems. Recently, we had a spell of hot weather and the fans just couldn't keep up. If you're using smcFanControl, the only fan speed that will really make a difference is the CPU. The HDD and ODD fans are no where near where you need to be.
Also, I noticed the machine was LOADED with dust when I took it apart, including the heat sink fins for the graphics card. If you have time you may want to try a thorough cleaning with compressed air before replacing the card. You just need to get through step 11 below to access what needs to be cleaned.
Based on reading here and elsewhere, I decided to replace the graphics card. To give back to the community, I wanted to layout the procedure here.
Where to buy the card.
I had a tough time finding the right card. I did exhaustive web searches using every combination of Nvidia 7300 GT, etc. You really need to search by the Apple part number. The Apple part number for the 7300 is 661-4179, for the 7600 is 661-4180. I found it at We Love Macs and at dv warehouse. I paid $248 for the 7600 card. BE CAREFUL buying a "refurbished" card. At We Love Macs, "refurbished" means "pulled from a working machine." Could be a machine with as much mileage as yours and prone to the same failures as yours.
The card is an MXM style card (generally used in laptops), with a giant heat sink and heat pipe assembly. The card can be separated from the heat assembly. If I had time, I would have tried a generic, cheaper, MXM style card.
Dispelling some myths.
People here and elsewhere have said that no Intel iMac graphics card can be replaced, that they're wedded to the logic board. The one on this model can be replaced, I've done it. Also, some have said you can't put a 256MB, 7600 GT in a machine that originally had a 128MB, 7300 GT. Also, not true. That's what I did to my machine and it is working fine.
So here's the step-by-step on my take apart and replacement. This is just one user helping out others, PROCEED AT YOUR OWN RISK. This takes about 1 1/2 hours to take apart and 2 to put back together.
1) Install the iStat widget and monitor the temperatures for a few days and record the temperatures (to be able to verify that you've completed the repair correctly later)
2) Make a complete backup of any internal drives and make sure the backup will be bootable (use Carbon Copy Cloner)
3) Use static safeguards, like an anti-static wrist strap.
4) Get a pen a stack of paper envelopes to separate and label the pieces you remove.
5) You'll need a #2 Phillips and #6, 8, 10 Torx. Most of the screws at T-8. There are 8 T-8s holding in the LCD. They are about 1 1/4" down. You'll need a long, skinny T-8 to get to them.
6) Unplug the machine and place it on it's back on a large white sheet of paper.
7) Remove RAM door, #2 Phillips x 2.
8) Remove RAM.
9) Remove 4 T-8s along bottom.
10) Remove large rectangular plastic bezel surrounding the whole machine, tilt up being careful not to stress iSight cables. You'll need to stretch it around the RAM ejection tabs.
11) Detach two iSight cables.
12) Peel up black stickers at lower corners of speakers.
13) Remove LCD screws, T-8 x 8. You'll probably drop a few, they're pretty easy to retrieve.
14) Remove two retaining screws on right hand LCD cable. T-6 x2 Unplug cable.
15) Remove LCD inverter cable, left.
Start unplugging everything connected to the logic board.
16) Unplug cable coming from right speaker. Note cable routing, it is the only one that's a little tricky. Also, note that the left one plugs in on the right and the right one plugs in on the left.
17) Remove right speaker. T-10 Note: left and right speaker screws are different lengths.
18) Unplug ODD blower cable.
19) Unplug ODD temp cable and lift up tape.
20) Unplug HDD blower cable.
21) Unplug the HDD temp cable.
22) Unplug the camera & mic cable.
23) Unscrew the clamp securing the airport card (has two antenna cables going to it, labeled PCIE), T-6 x 2
24) Unplug SATA cable.
25) Unplug Power cable, thick black plastic harness, socket.
26) Unplug ambient temp cable.
27) Unscrew the bluetooth card, T-6 x2.
28) Unplug CPU blower cable.
29) Unplug power button cable, 2 conductor, tiny cable, bottom left.
30) Unscrew left speaker, T-10, unplug from logic board, but just leave dangling, no need to remove cable completely.
31) Remove logic board screws. Be careful to segregate them, they have different lengths and different thread pitches and thread types. Some are machine threads going into metal, some are coarse threads going into plastic.
31a) Heat sink frame to case T-8 x 2
31b) Logic board to case T-8 x 3
31c) Screws at heat sink from arrows T-8 x 3
31d) Logic board at bottom near RAM slot T-8 x 2
32) Unplug ODD ribbon cable, be extremely careful. Release plastic tabs on each side to remove. Be sure it is fully and evenly seated when you put it back later.
33) Remove logic board with attached graphics card.
34) Unplug graphics card heat sink sensor cable at logic board end.
35) Remove graphics card screws 2 x T-6
36) Remove single screw from small L-bracket on heat sink 1 x T-6
Replace graphics card.
Reverse steps, put everything back together. Be careful not to pinch any cables when you put the logic board back in. When you put the LCD back in, if you can't get the screws to stick to the driver, use some glue stick from your kid's art supplies.
Test everything. You've disconnected every cable in the system.
I torture tested the machine with a space heater on it, 5 different videos of different formats playing at the same time. No problems.
I took a lot of pictures inside the machine. As soon as I figure out a good place to post them, I'll try to add a link here.
Good luck

Greetings!
I know this is in response to your post from over 2 years ago, but I was searching on Apple's site for the max RAM I can upgrade our refurbed iMac too and it brought up this post.
Oddly enough, I've been experiencing the same screen issues and locking up on our iMac as well. I was concerned it was a bad memory module, but now I'm thinking it's the same issue you found.
Because I bought this some 2+ years ago refurbed from Apple, I'm not surprised that could be the actual problem.
I've pulled this thing apart once to replace the hard-drive which crashed about a year ago, so I'm not totally new at opening it up, but this process you mention sounds pretty intense...just wanted to get your second take on it based on what I've done thus far.
Thanks again for posting this...it was an eye-opener as to what might actually be causing our issues with our trusted Mac!
Joshua

How It Was Fixed (Possible Software Bug Not Hardware): Getting the iMac Screen/Menus Garbled and/or Yellow Circle Before Getting Into Finder Issues?

Hi. Possible fix done to my late- 2009 iMac's screen/graphics issue that may work God willing, hopefully for most [In my case it sometimes had that yellow circle that appears before it goes to the Finder but mostly it was a messed up desktop and menus (unreadable mostly) after months, prayers and weeks of fixing it; recommended to be read entirely first coz' it's a bit complicated (like a lot of subplots). If uncomfortable to try coz' it involved a GPU stress test, contact your authorized Apple service center for their advice]. I had an iMac (late 2009) screen garbling a few hours ago (was weeks ago when it resurfaced until it got worse that it's at every boot on Mavericks):
† I booted to Snow Leopard USB external (my back-up OS) drive then run the first person shooter at redeclipse.net. I set everything to max, including the display, resolution and graphics setting with fullscreen and v-sync on. I then refreshed it which brought it back to normal (I then tested it's stability with GPUTest 0.7 with Furmark for 15 minutes). * if the display options have been set to max before, bring it back to the default then refresh and then max it again Possibly any games that's has the graphic settings (or more advanced) of Red Eclipse could work (other free ones are Xonotic and Open Arena which are based on Quake 1 or 3s engine I believe).
Optional but not recommended (have warrantied if that's still available or have it repaired at authorized service centers):
If that doesn't work, review articles and videos on how to open an Intel iMac and get an iPhone/iPad/another way to get to the 'net ready for research (I opened mine very carefully on the right side with a cutter with blade extended far prying it carefully then I inserted a flat end, sturdy plastic used for mixing epoxy then removed the cutter carefully to let the plastic mixing tool do the prying) to see if the cable connected to the logicboard which is on top of, is connected (mine was detached but I'm not sure if the adjusting and tilting of the screen overtime for 2 & 1/2 years, detached it) then do † above again.
It could to be a software problem, a possible Apple ATI driver bug that takes overtime to surface (2 1/2 years it resurfaced because this started in my case after upgrading to Lion when Apple coded things mostly from the ground up. Snow Leopard didn't have this problem).
Thank you for your time. Have a great upcoming sunday mass/great upcoming weekend. I hope this helps.
God bless, Rev. 21:4, Matt. 16:18

Does an external display also act in a similar manner as the internal one?
Some earlier Intel-based iMacs had graphic processor card issues; not sure what
the symptoms of the majority of them were, but some had odd patterns, others
went black, and some would range from OK to totally unusable. Among others.
So there is a chance the graphic processor may be going out; or just the circuitry
that controls the backlight. An inverter may be weak or other circuit to the display
could be wearing out.
http://www.apple.com/retail/geniusbar/
If you have access to an Apple Store with Genius bar, they can perform some kinds
of diagnostic tests there even though the computer is out-of-warranty; that may be
of help to narrow down the cause of the symptoms you've noticed. They may not be
able to repair it, however, at an Apple Store; as it is rather old by today's standard.
An Apple Authorized Service Provider could do repairs and testing on older models
the Apple Store's Genius and other may not be set up to handle due to vintage.
Find an Apple Authorized Service Provider
Visit an Apple Retail Store
There is a country locator page to help find either of the above in regions outside
of the US & Canada, not sure how the above links would work; and it appears my
bookmarks to the country locator page may not be accessible now to post here.
You may be able to get an idea about what kinds of parts support the display
function by name by looking into an iFixit.com repair guide for your iMac series.
Hopefully the parts supporting the display are the reason it is dimming down, as
a graphic processor failure likely would exhibit other behaviors than just dimming.
PS: I see you've added content to your thread after I'd started working on this
& the answer likely is a hardware repair; professional testing is worth the time
and you seem to have at least one other thread on the same topic....
Good luck & happy computing!
edited 2x

HELP?!? - iMac 2011 i7 Screen Flicker issue (OSX 10.8.3)

I have a Mid 2011 27" iMac with i7
Since the latest OSX update (OS X 10.8.3 (12D78)) I am getting a very concerning issue where my secondary monitors and my iMac screen 'flicker' and show horizontal bars (green in colour) the audio then seems to stutter and crash before eventually the computer freezes and I have to hold the power button to shut down.
This happens once or twice a day, however a related issue that happens every few minutes is that just my secondary monitors flicker white in places and go completely black for a few seconds at times too.
I have run the Apple Hardware Test and it reported no issues, I also reinstalled OSX from recovery and it is still happening.
I am hoping (praying) this is an issue with OSX and not my hardware. Can anyone shed any light on this - I'm seeing reports of 'similar' sorts of issues with the latest OSX update. But nothing like the issue I mentioned first (the one that forces me to shut down)
I have a Time Machine backup, is it possible to use Time Machine to revert my OSX to 10.8.2 to see if it is indeed the OS that has the issue?
Thanks for any help you can give!!!
Jay

Hi, I'd try the 10.8.2 restore.
I never use it, I use cloning myself, but...
Have you looked through Pondini's extensive TM help site?
http://Pondini.org/TM/FAQ.html
http://pondini.org/TM/Troubleshooting.html
Can't imaging something not being covered there.

21.5" iMac i3 2010 mid screen flash issue

Mine is i3 entry level iMac. When I activate the screen shortly after it goes to sleep, the screen will flash once before it come to steady. I use expose to demonstrate this problem. This also happens when my iMac is set to restart. Is it the norm???
Here is the video for ref.
http://www.youtube.com/watch?v=VelxBowlVYI

I use both native and non-active resolution, this screen flash issue still happens. For my other Mac screen, they just lit up and come to steady immediately. I wonder if all i3 entry level iMac have this issue. But it is strange that the screen seems unable to lit up right after you activate the screen.

Is anyone having issues with 27" imac screen calibrating?

I may have to post this on the imac forum, but figured i'd ask the photographers here using aperture. I've heard that calibrating the monitor on a new 27" imac is not very easy, or can't be done because of the lack of adjustments on the screen itself, and also that the imac screen can't produce neutral whites? Has anyone had any experience with this, or info they can share about this? Thanks!

I'm using a Spyder3Pro with the new iMac and haven't run into problems. I did bring down the brightness three notches before calibrating - that LED is very bright.
I know there were problems with the previous generation's glossy screens (too bright) but I've gone from the old matte version to this one and I'm loving it.

IMac 27" inch display screen flicker issue when moving files

Whenever a drop a file from Finder to my desktop, the screen flickers. Occasionally, when I move a window, it also flickers, but it's a more consistent problem when dropping the files on the desktop. It only flickers once and returns to a completely normal state.
It does NOT happen when going the other way - from the desktop to Finder.
I purchased the iMac AFTER the original firmware updates, so I haven't had to install any of them from the original problem a couple years ago.
I am wondering if this is a problem that is discussed or if there are any suggestions.
Thanks....

I'm having the same problem. Here are the details I was about to post as a separate thread:
27" iMac 2.7GHz Intel Core i5 with 16Gb RAM. I'm also using a 20" ACD alongside, a set up I have used with my previous 24" iMac. The ACD is being used as an extended desktop (not mirrored).
I've just started noticing an odd effect: When moving a file from a folder onto the desktop, the entire iMac screen flickers and breaks up momentarily before reverting to normal. It is an effect which lasts a fraction of a second and is visually very intrusive.
Weirdly, if I move the file but continue to hold it for a second before releasing to place it on the desktop, there is no flicker.
Similarly, if I open another folder and place the window alongside, moving a file from window to window produces no flicker. It only happens when moving something to the desktop.
The effect does not happen if the ACD is turned off (but connected) or the ACD is used in Mirror mode.
Does this sound like a hardware or software fault?

IMac Screen Failure

Hey,
I was just wondering if any of you are experiencing screen failures as noted in the link below? If so, is it the aluminum iMacs, or is it the white ones?
http://www.macnn.com/articles/07/11/30/imac.screen.failure/
Thanks!!

Hi autiger
Which iMac do you have and are you having any display issues?
I don't believe it can be jinxed, so I'll do a little bragging here. My 17" Early Core Duo w/Apple Care purchased Jan. 21 2006 is great and has no gradient light/dark, no dead pixels and only a very very small backlight bleed. The sRGB and Adobe RGB (1998) profiles were OK, but the display seamed a little washed out. After more than a few tries, and some good advice from Barbara B and others here I was able to set a new profile that is much richer than any of the factory supplied profiles.
All display manufactures and computer system will have there share of issues, some more that others. I have had more than a few Apple's over the last 20+ years without a single hardware problem. I do have to admit though, that with the all-in-one Intel I bought Apple Care for the first time ever???
Dennis

2010 27in imac screen failure

my 2010 27 in imac screen has failed, right half of screen grey shadow, dark, i note that this has been a problem in the past, seems that apple ireland are not concerned? any opinions or suggestions? seems that there are major reliability issues with imac
extremely disappointed with product and apple support.

Your are missing the point. Yes, there will be the occasional Mac that has a display failure.. Yes, there will be a number of LCD displays that fail out of the millions of Macs that are assembled with LCD displays. And yes, techs will be seeing those occasional display failures over the wide array of Mac models upon which they work. But there are a number of companies that make LCD displays for Apple with the various Mac models that exist. And sometimes there are different companies making the displays for the same Mac model. These are the random, occasional display failures that can be expected with every computer manufacturer who assembles massive numbers of computers; Apple, Toshiba, Dell, Sony and on and on.
But the point is that the link that I gave you points to a consistent mass failure of displays on the same iMac model, assembled in the same factory, over the same time period with displays from the same manufacturer. That doesn't exist for your iMac. If it did we would see folks posting about it here in large numbers, just as we did back in 2006 and 2007, which we are not.

HELP!!! new iMac. screen shifts side to side and i can't use mouse when this happens.

i bought this imac back in january and have had nothing but problems since then with it. first my OS (lion 10.7.4) crashed or some **** where i got extremely slow and would give me the colored wheel of death so i take it to worst but where i bought it and they say its a corupt hard drive so its sent out. get it back, they say it whats the os system so they re-boot the os on to it. mean while i was having the same problem ive have from the beginning which was the screen would shake side to side when ever i would be doing something and the mouse locks up and i would have to wait for it to stop. this is VERY ANOYING!!! i took it to apple and they ran a series of stress tests on it and they couldnt even get it to produce it once while they had it. so now its STILL doing it! can anyone please help me. im ready to go to apple and demand a new computer or punch someone in the face...

I'm speaking from experience.
You're using a wireless Magic Mouse right? Yeah, thought so.
I first noticed the problem on Lion (10.7.5) but that was also the time my Mighty Mouse or whatever that thing was called crapped out and I upgraded to the Magic Mouse. I always thought the problem was with the OS. My system is not supported by Mountain Lion (late 2006 model, the white one) so I did a system reinstall and stil had the issue. Being stupid, I still attributed it to the OS but had my doubts about the mouse with all the silly swipes here and there and everywhere. Until today. I said enough of this garbage and switched off the mouse and plugged in a beat up wired Logitech. Going on 4 hours now and not one screen shake.
The "iMac screen shake". Not very well documented. But **** if that isn't one frustrating mofo. Seriously, how did I use this thing for many moons with the screen shaking every 3-5 minutes. ***?? And by the way, to stop the screen from shaking while it's doing it, madly swipe back and forth on the magic mouse shell to take control back. Man, I'm getting upset just thinking about this problem. And the waste of $70 for the mouse.
And for what it's worth, I bought an iMac (2010) for my folks and I've noticed the problem on their machine too. Yep, Magic Mouse.

Screen Sharing issues with ML and SL with dual displays??

Don't know if this is a ML issue or was present in Lion (which I never upgraded to)
Setup...
Old setup was 2010ish MBP and only 2006 iMac. Both with SL 10.6.8 and both have two monitors...no issues.
Upgraded to ML on the MBP on release. Realtively painless process. I tried screen sharing today and I get odd responses with the MBP to the iMac. Just so everyone knows, screen 1 is the main iMac screen and screen 2 is the additional monitor. When showing both screens I could see all screen realestate. However, when I changed to only display screen 1 I started having issues. I couldn't get the entire screen to fit within the window nor scroll to show areas not displayed. Sometimes switching between fit in window and no fit, I would get a blank screen. Screen 2 only displayed and all is fine. I noticed on screen 1 that there was a little black bar or open space on the bottom of the window that was exactly the same size that was missing from the top. No ability to fit or scroll would allow the black space to move so that the menu bar on the top of the main monitor would display.
After doing a bit of searching with no luck and scratching my head, I took a look at the Arrangement screen in the display settings. Wouldn't you know it that the main screen (having a smaller resolution than screen 2) was aligned so that the top of each display was even with each other leaving a small space on the bottom of screen 1 compared to screen 2. When I moved screen 1 in the arrangement screen to a more drastic alignment to verify this was the problem...screen sharing crashed when going from both screens to only display screen 1. Tried screen sharing again going from two displays to one, crashed again.
It appears there is some sort of bug or maybe ML and SL screen sharing doesn't like each other when the remote computer has two monitors.
Submitting bug report to Apple but was curious if anyone else has seen this or knows a work around.
Mike

I have a similar configuration (Lion 2011 MBP and SL 2009 iMac w/ second display). After installing the recent Remote Desktop update things went awry when trying to share the iMac SL displays with the MPB Lion.
The displays on the iMac are the same resolution, however the second display physically sits a bit lower than the iMac display, so I had adjusted the arrangement to compensate the different heights. The second display is located physically to the left of the iMac display, but that shouldn't have any effect as far as I'm concerned. Screen sharing had worked in this config until the recent Remote Desktop update (on Lion).
I thought about what you mentioned about the display screen arrangement, so I decided to just test it for myself, arranging both displays side-by-side on the displays arrangement control panel. Surprisingly, it worked!
I do consider the Remote Desktop update to be the culprit and there must be some bug associated with that. I'm getting ready to submit a bug report, so hopefully we'll see a fix soon.

Can't install CS3 Upgrade on NEW iMac 24". An Imac DVD drive issue?

My CS3 Design Premium Upgrade CD fails to install Photoshop on my BRAND NEW iMac yet it is able to install everything else on the CS3 disc. I just bought this iMac yesterday and CS2/CS3 Upgrade are the FIRST things I installed (besides updates) when I turned it on. I'm still using 10.4.10.
I searched through the Adobe forums and the internet as to how others with the same issue have dealt with the problem, but it seems the most common reason is that people had installed Photoshop CS3 beta previously as well as older Flash/Acrobat plug-ins conflicting with the installation process. Further, these causes seem to be effecting Windows users.
So a few hours ago I tried to COPY the upgrade CD contents to my hard disk, I get the message:
"The Finder cannot complete the operation because some data in 'AdobePhotoshop 10en_US.dmg' could not be read or written. (Error code -36)."
This procedure of copying to the disk (and the resulting error message) is SPECIFICALLY addressed in the Adobe support pages TechNotes:
http://kb.adobe.com/selfservice/viewContent.do?externalId=kb401429&sliceId=2
The page says that it may be a drive issue that is causing the problem. Of the 7 possible solutions given on the page, I've narrowed it down to only 1 option left (but I can't try it since I don't have another Mac!):
"*Solution 4*: Copy the software to the hard drive of a different computer.
*If the software copies successfully, the model of DVD drive on your original computer might not be able to read the DVD. Contact the DVD drive or computer manufacturer for any updates that might be available.*"
But what's funny (or annoying rather) is, I had a 20" Alum 2.4 iMac earlier this year (returned because of screen problem), and the CS3 upgrade installed without any problems on it!..??? And according to the iMac specs, the 20" and 24" models both have the same DVD drive make right?
Any ideas??? Are there other 24" iMac users who are experiencing similar problems? If not, then I guess I may have to return yet another iMac...which I'm reluctant to do since this screen is PERFECT! I'm scared to get another iMac with the dreaded screen gradient issue.

I just solved the problem.
I tried copying the DVD files to the hard disk about 7-8 more times. The last try SUCCESSFULLY copied to the disk and I was able to install Photoshop CS3.
Yay.

Any external monitors as good as imac screen for text?

hi all.
this is my first mac. it's a new 21.5inch imac with a 2.7ghz i5 proc running OS X 10.7.3 and 12 Gigs of RAM (8 Gigs from crucial for $50, who can resist?)
i've got it hooked up to an external samsung syncmaster B2330 running in 1920x1080, which is this monitor's native resolution. works fine. it's hooked up via the dvi port on the screen via the mini-displayport to dvi adapter for the mac. i switch this monitor to the vga port when i want to use it as my pc monitor also running at 1920x1080. there is a source button on the monitor. very convenient.
the issue is that they text on this screen when coming from the mac is not as clear was when coming from the pc despite the fact that the vga port provides much less bandwidth than the dvi port the mac uses. i've read that the mac and the pc display text on screen using different methods. my pc uses an nvidia display graphics card. i believe mac use ati based hardware.
there appears to be much more interpolation when displaying text from the mac. perhaps this is a text size issue i'm not sure. either way i read a lot on this monitor and need it to be as good as possible for that purpose.
so the question is, does anyone have experience with an external monitor that is as good as the imac screen for text display. i can't use the thuderbolt display or a cinema display since they don't switch to different ports allowing my to use a single external monitor for two machines. i'm willing to spend up if there is a reason to do so. i'm on these computers a lot. i work from home with some regularity and my job is all about reading.
any help is appreciated.
best, c

I have an dell 24" lcd as 2ed monitor and text look as clear as the imacs screen
but it having a t-nfilm lcd panel vs. the imacs ips panel the colour and contast look worse
but text look as clear
and it look the same when I boot up in win7 using bootcamp

24" 2008 iMac screen going black

My 24" 2008 iMac screen keeps going black then coming back after a while. What temperature would it need to get to in order to knock out the display? I have iStat.
Also, if the screen fails due to graphics card or other component, is it possible to connect an external display to use it until I can upgrade to a mini?
Cheers.

As old as your iMac is, have you cleaned out the dust? Dust buildup can lead to over heating issues. Remove any and all things plugged into it including the power cord, Remove the RAM access grille. Vacuum all openings starting with the RAM access area (air intake). Vacuum all ports and plugs, DVD slot and the opening across the top of the rear of the body. Blow compressed air through all your openings and vacuum again to remove any dust you loosend. Reinstall the RAM grille. Plug in the keyboard and mouse if not blue tooth. Insert power cord...
You are now in a perfect position to do a
SMC RESET
http://support.apple.com/kb/HT3964
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
It is the 5 second timing that initiates the reset.

2006 24" iMAC screen smear issue

Similar Messages

Maybe you are looking for