PowerPC :: IMac G4/17 - Sunflower - LCD Display Is Dark - No Image
Jul 30, 2007
I replaced my iMac G4/800 17" hard drive that was failing (S.M.A.R.T. status) tonight. Textbook operation, following directions from xlr8yourmac.com. No problems at all. I pre-built the drive with Tiger 4.10 in an external case (using the iMac as host) and transferred everything to the drive and tested. I booted off the external drive for a few days for testing. Again, no problems.
I got the iMac back together and booted up. Everything sounds fine but the monitor is black. It's as if there's no power to it or perhaps the lamps were just out.
When I press the power key for 1-2 seconds, the mac goes to sleep and the white Sleep Light on the front of the monitor comes on, so the monitor would appear to be getting power.
The Mac is working, evidently, as the chime for new mail sounded and the new drive chirps a little (very quiet though, btw).
I do NOT have a second monitor to hook to the VGA port, unfortunately.
On one reboot there was a sine-wave 'bong' sound, but the Mac proceeded to boot. I shut down again after that, took the housing apart and checked for trouble. Nothing. The video cable and connector is fine. There are no cables pinched or cut that I can see. And I did ever-so-carefully align the two halves when reassembling.
On the third boot I got the normal Mac chime (no bong/gong) and it booted fine - with no video.
One side note that I expect to be un-related: I left the HD jumper in cable-select mode, as the drive that was in there was also set on cable select (was a Western Digital 250GB drive; the new drive is a Maxtor).
What's wrong with this iMac monitor?
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May 5, 2012
display on my iMac 27 (bought in august 2011) have many dark spots. This is my display: url.. Could i replace my mac if i don't bought apple care? I live within USA and don't have Apple Store
Info:
iMac
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Dec 4, 2009
How many others on here have an imac with burn in problems? I have a tone! I am so unhappy with this product. I am happy I have the extended warranty, I am now getting a new monitor for my imac.
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Nov 3, 2008
Allright, I have a 24" iMac. 3.06 Core Duo 2 4GB RAM etc etc.
Just now, as I was innocently talking to a friend using iChat, the top of my screen flickered once or twice and then went dark. I am typing on it now, so it is not unreadable, it just looks like the back lighting has gone off on the top half. The middle is relatively light (bleedover from bottom back light?). I have tried playing with the hinge to no avail. After I reset the computer, cleared pram-nothing. Zippo. I got the top to stay lit for about a half second after reset, but it then flicked off again. Do I need to load up my iMac and drag my ass to the Apple Store (it really is quite a task to drive there)?Here is a horrible cell phone picture (and no, the screen IS dark, that's not a shadow.):
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Oct 2, 2008
Being the IT guy at work, I've inherited a (currently) non-functioning Dual 2.0 GHz PowerMac G5. It' exhibiting some pretty odd symptoms. Let me explain:
First of all, the problems started with the machine coming on (fans audible, Apple chime 'chimes'), but nothing was displayed on the
screen. This led me to believe if might be a video card issue, so we ordered a replacement from OWC and no dice. After trying this, I happened to leave the machine on unintentionally for a while, and after about 5 minutes, the fans ramped up to full speed, very loudly. Since we were in a bit of a time crunch (and it was out of warranty) we gave up on it, and purchased our graphics designer a new Mac Pro.
With a bit of googling, I determined that this sound a bit like a dead PRAM battery. So once again, off to OWC I went and purchased a replacement. I get it setup at home last night, and still no dice. If fires up just fine and chimes, but no image on the screen. And here's where it gets weird...
I powered the machine down, and took the cover off to check the PRAM battery again, thinking I may have inadvertently put it in backwards. It looked fine (fits both ways, BTW, so I'm still not 100% sure I have it in right), so I powered the machine backup--but without putting the cover on accidentally. The red light on the mobo came on indicating the cover was off, but I figured I'd wait to see what would happen first. Still nothing on the screen, so I popped the plastic shield in and latched the side cover, and BOOM! Wouldn't you know, it displays an image! I can see a folder icon with the Finder icon on it.
This is 100% reproducible every single time. If I turn it on with the cover ON, I can never get an image to display. However, if I remove the cover and plastic shield, fire it up, then replace the shield and cover, I always get the folder with Finder icon.This is quite perplexing. I should also note that I had my retail Leopard install disc in the drive the whole time, hoping to boot to the DVD if I got an image. It obviously wasn't automatically booting from the DVD, but instead would always display the Finder icon.
Being a post-PowerPC Mac convert, I'm not really sure how to proceed.I'm still not really convinced that there is an underlying hardware issue still, but I suppose it's a possibility.
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Jan 1, 2010
I can barely see digital pictures and the likes. But websites and such i can see fine so long as the colors are light and looking on this site... [URL]
the first image i absolutely cannot see, it is 100% pitch black.. the other bellow it shows up just fine. But the two left/lowest squares on the color table on the very bottom the page both appear the same shade of pitch black.
I can see light but not dark. I tried callibrating and adjusting brightness and contrast.
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Nov 2, 2006
I am creating a new image for some old iBooks that will be used in a school. To run a specific program I need to have OS 9.2 installed because it won't work any other way(even through the simulator). I have OS 10.2 installed on the master image iBook computer and have installed OS 9.2 through the restore disks. I can load up to both OS X and OS 9.2 but OS 9.2 does not take up the entire screen. It's contained within a small box in the middle of the screen.
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Mar 4, 2010
Why does it seem like my eMac display looks nicer than my iMac display? I always wanted to know or am I tripping?
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Mar 31, 2012
My six years old MBP OS 10.4.x Tiger all of the sudden the display turned black. I hardly see the content of the desktop only when there is some light on the room, looks like I have reduce the light to the Display. I have tried to reset the PRAM with the opion, ctrl, P, R key combination and it did not work. It boots-up OK, no problem with the HD neither Memory, I have not run any test on it though. I have not had any trouble on my MBP until now and I have to say I have never reinstalled the OS.
Info:
MacBook Pro, Mac OS X (10.4.11)
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Aug 11, 2009
I have an iBook (OSX 10.3.9)that's been great for the last couple of years. However the last week or so the screen goes dark for no apparent reason. You can still see through enough to fiddle around and hit shut down...and after it shuts down, and I restart it...it seems normal...that is until the next time. It's happened about 4 times in the last three days. A couple of times on battery and once plugged in I think. It's like it goes to sleep but you can't hit the space bar to wake up. Also seems like maybe an energy saving deal gone awry.
Now for info that may be pertinent: I dropped this laptop(in it's case) about a year ago. Holy crap..all docs would only read in magenta. No black no color only magenta and a "photograph negative" looking image for background or any graphic. I was sure it was dead duck and fried but kept trying it periodically. After about a month, after giving up...I turned it on and it was fine...as if nothing was wrong. Weirdest deal. It's been fine ever since.
I thought perhaps I was too lucky...and assume this may be a result of that fall.
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May 15, 2009
I have a dark spot on my MacBook display of diameter 0.15 inches (or 4 mm). The spot is bright if looked from an angle.I brought my Mac to the Apple Care and I just received the verdict: the spot was caused by ME by applying extra pressure to the LCD!. Which is not covered by Apple Care warranty!
That's interesting since I am 100% sure that I didn't harm the screen. The guy even suggested that I forgot my pen on the keyboard and closed the laptop! That's great!
I told the Apple guy to send me back the laptop as it is after he offered a repair for $700 plus tax! But I am determined to go on with this since I love my Mac, I spent a lot of money on it.
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Feb 16, 2008
My macbook has had this problem for a while but I have lived with it so far, but now it is really annoying me. Images and video are displayed very darkly, often loosing a lot of detail and maing the image un-seeable. I have tried fiddling with the gamma settings and all other settings that I can find on the control pannel, but so far I have had no luck.
Just as an example, this is a frame from some video I shot:
click for pic
On any other monitor, the bulb appears bright and white and the ball bearing is visible. On my monitor the bulb is very dark, most of the fragments are invisible and the ball bearing is just a small crescent of light.
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Mar 18, 2012
Why would our display will suddenly go dark when browsing?
Info:
iMac (21.5-inch Late 2009), Mac OS X (10.7.3)
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Sep 5, 2010
So I've got my MBP that I've had for about 4 months, the thing is. It just recently started to have screen flickering issues. I'll be sitting doing w/e as usual and all of a sudden the display goes dark, almost black, for a second, then comes back up again. I have yet to find any trend in when this is happening, but it is definitely happening on battery as well as plugged in, but it seems to be getting worse.any one have any idea what this could be, something I can fix on my own, or should I take it in?
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Dec 13, 2010
Just picked up a 11.6" MBA this past Saturday. I am noticing an interesting display "issue"... I wanted to confirm that other's are not seeing this before I take it back to the store.
On the bottom of the display, there's a strip, maybe 2-3mm worth, where it is darker than the rest of the display. Are any of you seeing this behavior as well? It's particularly noticeable when when using solid background colors.
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May 4, 2009
Recently, the display of my MacBook Pro (unfortunately, out of warranty) often is black/greyish after wake-up/start-up with a thin white stripe in the middle of the screen, and the computer (obviously) cannot be used in this mode (you can hear it start up, but since the screen is completely dark, I can't actually do anything - restarting doesn't help either).
At first I thought it might be the graphic card (since there is a known problem with NVIDIA), but I've brought it in for repair where they have run multiple software-tests, and no error code was returned (when I brought it in it magically "fixed itself" and, once running, the problem can't be re-recreated), so nothing was fixed.
It seems to me that the MacBook for some reason cannot find or communicate with the display because I just discovered that if I hook up an external monitor, it manages to find that, and, after disconnecting the external monitor again, also "reconnects" to its own display. It then generally runs fine until I physically move it (ie. put it in my backpack and carry it somewhere) - after being moved, it tends to have the same problem again (not always, but more and more often).
Have you had any similar experience and/or what might cause this and how it could be fixed? I'd like to avoid replacing the display or something of the sort until I know for sure what's going on.
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Aug 2, 2008
I have my PowerBook G4 connected to a Hitachi video projector, using a DVI to VGA adapter.
The problem is that the only projected image I can see is that of my Desktop image. It doesn't display the Dock, menus or any windows.
What settings do I need to change?
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Sep 12, 2010
I have a 28" inch display attached to newest version of Air. Works ok except when I have a full screen on plain dark grey background, then I see a waviness or flickering effect. Like the dark grey in Iphoto background. Other than this, the other colors seems ok. Pictures are fine, even when dark. Maybe there's a slight flickering with dark blue. Any explanations for this.
using mini display port to dvi. Tried with a friends dual link display, was a little different, but still unstable looking in dark grey when it fills the screen.
Could it be just what it takes to make this color, or the Hertz, which is 60. Other than this, no problem with the screen.
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May 16, 2009
I dropped my mac powerbook from a couple of feet and now the backlight wont go on...everything else seems fine just really dark screen...dont know what to do...is that expensive to fix?
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Nov 14, 2010
I have an old iMac G4 and I was wondering if I could just use the screen somehow since I don't need to use it as a computer? Could I use it like a TV to play xbox or something?
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Jul 3, 2006
I want to take my old iMac G4 and use it as an external display for my MBP. Is this possible? Has anyone done this?
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Sep 20, 2006
how to fix the tilt on my iMac G4 screen? It seems to have play in the joint closest to the screen itself which is terribly annoying.
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Mar 26, 2008
Can someone confirm if an Imac G5 will display on a second screen from startup or does the OSX have to complete the boot process before the second display will work.
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Aug 31, 2010
I have an old PowerBook G4 that my son uses for simple stuff. One day the screen went dark gray (not powered off) and it won't boot. When I try to boot from a Tiger disk, I get what appears to be a kernel panic. I don't get any strange startup beeps
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Feb 8, 2007
Let me first apologize for this being very similar to one other topic in this section. However this is exactly what is happening to my computer and no one has answered the other guys thread ( similar to my post - agentphish - posted 01-19-2007, 08:19 AM).
I have searched through 50 of 77pages in this particular forum and my eyes are bugging out. Could someone please give me advice on this matter.
First, about 1 month or so ago I started noticing that in the bottom left and right corners of my screen, about the size of a nickel, it is a lighter color than that of the rest of the screen. It is hard to notice, but I do.
Now, I have recently begun to experience a large round dark area, just slightly smaller than the diameter of a CD in the lower left hand side of my 2 year old powerbook.
It only manifests itself when the computer has either been asleep or turned off for a period of time (typically the longest for me is a few hours during the day that it may be off or at most a period of overnight while I am sleeping)
It seems as though after 5-10 minutes it goes away presumably as the pixels are "warming up" or whatever it is that pixels do.
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Aug 10, 2008
I recently noticed a dark corner on my iBook's screen I am not exactly sure what it is It does not show up when there was a white screen from a movie playing in fullscreen Anyone have any ideas??
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Feb 1, 2007
I have just bought an iMac G4 1GHz USB 2.0. When I run the system for more than about 15 mins the screen dies and goes a glorious multi coloured pattern that I cannot recover from. This is persistant from then on through reboots until I Zap the PRAM.
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Nov 23, 2010
I get an dark black stripe at my iMac (mid 2007 or 2008).It's best visable when i put my darkness at lowest setting and on white survaces.
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Nov 29, 2010
My iMac has these dark spots on the screen and I wanted to confirm that it is a hardware issue before I make an appointment with an Apple genius. I thought it was dirt, but cleaning it didn't do anything.
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Jun 16, 2008
I tried to use some software to test the display. I found when the screen goes to completely dark with the backlight on, the bottom side of my screen is brighter than other parts.... have u guys met any problem like that, or is this some problem with my MBA?
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