PowerPC :: Flickering Screen - Fuzzy Lines On Ibook G4?
Nov 28, 2006
My brother's ibook (14", 1.33 Ghz, 1.25 GB RAM, 10.3.9) recently developed a problem: when he would open it, the screen would show fuzzy lines for a few seconds before "stabilizing." He tried to live with it, but it got progressively worse. Now, the lines never disappear, and the screen flickers as well.
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Jan 7, 2008
There are fuzzy vertical bars on my ibook g3 LCD screen? Is there anyway to fix this problem without replacing the logic board?
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Mar 15, 2007
...as the color green becomes dominant. The background on the browser is a faded greenish color, and the desktop image is degraded. Got some dandy streaks too! Searches say maybe logic board, but the guy I bought it from said it had a new logic board installed. Cables was a thought, but rotating iBook does not effect changes. I've shut it down for the moment, but am anxious to pinpoint the problem?
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Sep 16, 2009
The screen on my iBook G4 is starting to very faintly flicker when there is the slightest movement on the laptop (e.g., typing with the laptop on my lap). My suspicion is that the display ribbon or something is frayed or loose. Any ideas on what might be causing it or how to determine it? How easy would it be to fix and for how much?
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Apr 2, 2010
I'm new to this forum and sensed that maybe someone could give me an advice about my damaged LCD screen of my old iBook.
A few days ago I opened my iBook and the screen suddenly couldn't portrait any white color properly. Everything was flickering and moving. Darker areas have a green flickering as well. I'm not a absolute tech expert, but I tried already a few things. I hooked it up to an external monitor and the picture was fine! So it must be hardware related right?
Now the weird thing. Sometimes the panel suddenly works properly for a few hours. I don't know what could trigger it, I tried everything. What should I do? I took some pictures and uploaded them to Flickr:
http://www.flickr.com/photos/3129175...7623630430475/
I know the machine is old, but I originally planned to get a new MBP this summer. I can't afford a new machine right now and the current MBP are just overpriced compared to similar old products on the market.
I have to be mobile, so I need a laptop.
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Aug 27, 2010
Since yesterday, my screen has been acting really wierd. Every few hours, the screen goes all fuzzy with a bunch of white lines on it, and it becomes completely unusable. It only happens for a few seconds each time (fortunately, it's fine right now), but it's kinda got me worried because I need to keep this computer for 2 more years before getting a new one, and I can't afford to fix it. I can't stop using it because I need it for school, so if it breaks, I'm completely screwed.
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May 9, 2012
My mac screen is frozen with white fuzzy lines going across the screen. I shut it off and turn it back on but it still remains white fish lines on the start up screen. I've tried revolting it, it works sometimes but now its stuck at the starting screen. I have been at this for 2 hours to try and fix it but nothing has changed about the screen.
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Aug 20, 2014
I have flickering lines on my macbook pro , screenshot doesn't show them up, and I don't know how they got there.
Panicking a little as this laptop is fairly new and expensive.
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Mar 8, 2012
The screen on my Macbook Air just recently started to periodically display flickering lines. They are multicolored and stretch across the entire screen. Hardware test was ok, and console not reported any issues. MBA is "late 2010". Warranty ended January!
Info:
MacBook Air, Mac OS X (10.7.3)
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Jun 3, 2012
I was sitting with my MacBook Pro, when out of no where, purple vertical lines began flickering on the screen. I tried getting them to stop, then eventually just shut down my laptop. When I went to power it up again, it first popped up with the white apple screen and chime, then a gray screen dropped down with the message "You need to restart your computer. Hold down the Power button for several seconds or press the Restart button.".
I tried the Power button option first, but the computer does not come back on. When I press the Power button again, it does the same thing all over again. I do not know where the "Restart button" is, so I haven tried that. I have also tried pulling the battery and restarting, restarting in safe mode by holding the shift key at start up, and trying control-r and control-s functions. None of which worked.
Info:
MacBook Pro, Mac OS X (10.7.4)
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Dec 5, 2007
Thing is I got hold of a 1ghz 17" iMac almost for free, it had a dead logicboard (I checked it with a voltage-meter), but I figured I could fix it and have a small hobby project-thingie going on. Well I just got a new logic board today, for a 1ghz 17" iMac g4.
Things is I only get a bright grey screen from my Mac when I boot. I've tried connecting it to a external display and that works fine. Everything is there.
I then reinstalled Tiger on it, with the computer connected to my external screen. And I still have the same problem. (I have now disconnected the ext. screen and is controlling the iMac from my MBP). So at least it isn't the installation.
So what is the problem? I can via an Apple Keyboard control the brightness on the blank screen, which would indicate that it does react to input of some degree.
I've read that if the inverter is dead or anything else is dead, you would get a rolling grey screen, flicker or something like that and not a steady bright grey. One thing I'm thinking is. What if somehow this logic board was for a 15" 1ghz imac g4? Can I check this?
I read that long thread about guys buying hi-res displays for their MBPs, and they had to replace some display profile? Could I maybe fix it with a different display profile-file?
I'm really confused by all this, and would appreciate any help I can get.
Model: PowerMac6,1
CPU-Type: PowerPC G4 (3.3)
and
the gfx chip is a GeforceMX4 with 32mb.
The display is a mode 9c27, manufacturer 610, serialnumber 00000, manufacture date: B84D7200.
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Jun 3, 2007
My friend gave me his ibook 900mzh that was not displaying because he did not know how to fix it so I took a stab at it. I am not new to fixing computers as it is my profession but I'm new to Apples. Anyway, the first time I turned on the laptop the lcd displayed without any problems, every time after that it turns on randomly. After taking it apart about 3 times for various reasons and mistakes the laptop now displays every time I turn it on, but if I apply any type of pressure to the lower left side if the laptop the screen either goes black or gets small lines running through it. From what I have learned the only possible conclusion that I could come up with is the magnet that tells the ibook if it is open or closed has something wrong with it. It feels almost as if whenever there is any pressure around the hard drive the screen goes black. Any ideas, or tests I could do to fully determine the problem?
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Jun 7, 2006
OK so i just noticed TODAY that my powerbook's screen is flickering. i didnt really notice it until i changed the background to a neutral grey and now i see a horizontal flicker. does it always do that? or is something going bad?i still have a year left on my apple care ( fortunately ) so if its dying ill certainly take it in to them.
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Jan 2, 2009
I have a problem with my 4 year old iBook G4 screen, which flickers or blacks out depending on how far open the lid is. The problem has worsened over 6 weeks. What is the diagnosis?
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Oct 31, 2006
I purchased a 1.33 G4 14 inch ibook exactly 13 months and eight days ago. The logic board is toast as of today. i.e. flashing colors and flickering screen. I took it back to where I purchased it and many other apple items {powermacpac it Portland Oregon}...and I was told that it was a $600 dollar repair...unbeleivable...I now have a $1050 dollar paperweight. I called apple support to find out if they would fix the computer since we were so close to the warranty end date. n the end...I shoulda bought applecare.
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Jan 22, 2009
I just purchased the Macbook Air rev 2 120gb HD model. I it has the problems with the lines on the screen. It flickers on the one test image from the forums, but does not appear to flicker during normal usage. Also, it has a sort of CPU buzzing comming from the left side of the keyboard. It gets worse then I move the trackpad.
I was thinking of calling support on this, but I don't want to end up getting the same screen with the same problems. I was wondering if anyone has gotten any of this fixed. Is there some way that I can direct support so that they put in the correct model of screen.
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Jun 5, 2014
It's been happening for a few weeks and I really need to know if it's something bad or not because I can't afford a new laptop.Â
Info:
MacBook Air (13-inch Mid 2011), OS X Mavericks (10.9.3)
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Jun 30, 2009
I have a new 17" uMBP that I've owned for just a few days. I noticed yesterday that while I watching a video that i had strange green/red lines (horizontal) appear across the screen and flash/flicker. I freaked out and closed the lid, putting the unit into sleep, and opened it again and it all stopped. Today, I was using it again as usual, on firefox/etc. when it started happening again. Horizontal lines across the screen, the entire display flickering and screwing up and finally going black. I don't know what's going on, but I know this definitely isn't supposed to happen. I took a screenshot during the flickering/lines/etc but the screenshot came out perfectly fine unfortunately. I'll try and get it on camera next time.
I have all software updates installed. I tried resetting PRAM. The flickering I'm talking about isn't minor, it's actually absolutely horrendous and the computer is completely unusable when it's going on. It ultimately leads to a black screen. Anyway, this is all on the 9400, and I have no idea what's going on but I definitely know this isn't supposed to happen. UPDATE: I booted into Windows via bootcamp and it STILL happens. I also connected it to an external display(which works perfect), which leads me to believe that it's 100% a hardware issue. I'm taking it back to the apple store, enough said. This is my first Mac and I can say I'm definitely not happy to be having such issues with a $2500 machine.
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Jun 17, 2012
My Macbook pro's display has started playing up. Having green flickering lines which come and go randomly, especially on images with a lot of black. Right now, the lines just disappeared as soon as I connected to mains, to start recharging the laptop. I'm using OS X 10.7.4 with NVIDIA GeForce 9400M.
Info:
MacBook Pro, Mac OS X (10.7.4)
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Oct 22, 2006
For the first time ever, my Titanium Powerbook won't load OSX. I was using Excel when the beach ball started spinning. I've had that happen, so I just went to force quit. It wouldn't force quit for me. So I let it sit a while and tried again. Again, it wouldn't force quit. So I tried to Restart the Mac. It restarted, but when it did, I don't see the OSX load screen. I get a blue screen with the spinning lines, but that's it.
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Nov 26, 2007
My problem is a screen that is lit but grey, with vertical lines very faint in the background. when connected to a monitor all is well. I have replaced the screen with a second hand one from ebay and it is exactly the same. what is more likely- both screens are duff or is there something obvious i'm missing. i was given the ibook by a friend replaced the harddrive and gave it to my son and it worked for six weeks perfectly until the display suddenly went never to return.
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Mar 18, 2009
First Mac Attack, must say I like working on these things, I'm working on a friends late 2004 ibook g4 that seems to boot up fine, but with lines across screen exactly like this one found in google images. Most of the info I've come across seems to point to a logic board failure, but also have seen posts relating to LCD failure. wondering if any here have encountered this and what eventually found was problem. This ibook is litterally on the verge of just being replaced anyway. I'm only working on it because It's a first, and believe the education is valuable.
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Mar 30, 2009
I'm looking for some information and possible repair tips for my cousins iMac G5 (First Gen) 1989. I don't know anything about mac's, I've always been a PC user. But, I recently fixed both my aunt's laptop and desktop (both pc), so my cousin asked if I would take a look at her mac, as well. Basically, when the iMac is turned on, the screen goes weird. It fills with a bunch of lines (both horizontal and vertical), some spanning the entire length of the screen, and some being only about half an inch long. The lines don't stay stable, they flicker and change positions every few seconds. Behind the lines, you can see the black screen with the apple on it.
It doesn't seem to get past this point though, it seems to freeze and never leave the apple screen, although the flickering lines continue to change. I tried jiggling and moving the power cord around, and whenever I moved it the lines on the screen seemed to change positions. I also tried taking hold of the sides of the monitor (machine? I have no idea what mac-speak for anything is) and very gently pressing and "twisting", and this changed the lines as well, at one point it turned to all vertical lines spanning the entire length of the screen. We opened it up to see if any wires were loose inside or anything, but there really weren't any exposed wires that I could see that I could even try to tighten/adjust. Right now it's not even usable.
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Sep 20, 2006
I just bought an eMac from an appliance recycing center. It works great except for the lines running down the screen well it's kind of more like shaky. It's a G4 800 mhz I took it through the rain to my truck to get it home. But even then it didn't get too wet.
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Jul 13, 2007
I put my PowerBook to sleep and left home with it about an hour ago. I just opened it and it woke up but the screen was black. I turned it off and back on. The white screen with the apple and progress wheel came on for a normal period of time, but then the screen went all white and there were several uneven horizontal lines across the middle and froze there. I forced a restart and the same thing happened but this time I got the semi transparent window that says need to restart. I did that and I got the same screen without the message.
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Mar 25, 2009
The other day the screen started blinking randomly. It'll flicker for a few seconds and then go white with vertical grey lines for a few seconds. Then it will go back to normal. There doesn't seem to be a pattern to it. Sometimes it will go through that process for five minutes and then stop. Other times I can be working on it for hours and nothing will blink or act screwed up.
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Dec 17, 2006
are these two LCDs swappable? Can I stick a G3 iBook Screen into a G4? I have no idea and I'd like to have some idea.
does the hinge and everything line up, too?
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Dec 26, 2008
just installed 10.5.6 on their last gen. iBook.She left the iBook plugged in to the mains and came back to find that the iBook was alternating between the grey Apple screen and a light blue desktop screen where she could see the cursor. Sometimes it would also switch to a blue screen without a cursor.
I've tried holding shift during startup - no effect.
I've tried rebooting NVRAM - no effect.
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Apr 30, 2007
My iBook will not display anything on its screen. Rather, it just remains black. One time, the screen did come on, but then shortly after booting, it flickered a lot and then went black again. A year ago, something similiar happened and when I took it to be serviced (when I had AppleCare), they had to send it away and have a new logic board installed. Now this machine is out of warrenty and and I am not sure what to do, or even if it is the same problem. Any suggestions?? Thanks!
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Sep 23, 2006
Ever since I sold it here on MR and got it back, there has been a problem with my 12" Dual USB iBook G3 500MHz's screen (lord, that's a long name). Whenever the screen is tilted back farther than 45 degrees or so, the backlight shuts off. I can open the casing and fix it if it's possible. Does anyone know what the problem with it is? I'm trying to get it fixed up and ready to sell back to my friend as his first Mac, and I'm trying to get every problem resolved
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