Desktops :: IMac G5 - Blue Screen Appear And The Normal Log On Profile Selector Doesn't Appear
Sep 29, 2010
Over the last few months there have begun to be hundreds of blue horizontal lines running across the screen and the sound fragmented, with the Mac crashing over 5 times a day. Normally, I would restart and the problem would be OK for a while.
However, now when I turn on hundreds of horizontal black/green lines appear in colums, the normal apple symbol comes up with the spinning loading item. Then a blue screen will appear and the normal log on profile selector doesn't appear. Then after a while the blue screen is covered the thousands of these black/green lines.
This started very suddenly today. I was in finder looking through some pictures when my screen suddenly turned blue. After a second, it faded back to normally, so I continued what I was doing. After about 5 minutes, it happened again, but faded back. It's be less than a half-hour, I haven't touched the computer but the screen is turning blue than fading back every half a minute or so. Every now and then, the screen stays blue for about 20 seconds.
I keep having the screen turn blue and then suddenly go back to normal. It's a quick flash, totally random, repetitive during operation, no noises, and nothing else is interrupted. It does not restart, log off, or try to. Is it about to die?
My 2010 13" Pro seems to have some blue/magenta light leaking from the bottom of the screen. This is only visible with the brightness turned up and against a black background (i.e. when watching a letterbox movie). It's quite different from the "typical" white light leak that I've witnessed on other lcds. Would this be "normal"?
Also - and this may seem like nit-picking - but my caps lock key feels a bit flimsier than the rest of the keys. Again - is this "normal"?
I have iMac 27 and screen problem on start up i have blue vertical lines, when it start i have a lot of blue dots and nothing else. when I connect outside monitor its showing the same.
Just installed lion and still the same problem when it starts blue dots, when startup in safe mode loads of blue lines and dots on the screen.
The screen/crt of the imac that I have been using since about '98 went black - this actually happened a couple times previously but I was able to get back in (no idea - one of those things where out of frustration you just start pushing everything at once and it suddenly pops back on). I have tried everything - the internal battery, that little button on the motherboard (not sure if that is what it is called) that resets everything, the connection of the main power button on the front, etc. I am fairly sure it is stuck in sleep-mode or something (no beeps, hard drive doesn't make the usual booting-up sounds but you can tell that it is receiving power) but after months of wasted effort I finally gave up. I bought another slot-loading G3 and would like to swap hard-drives between the two - I have taken my old G3 completely apart so many times that I am totally comfortable with that aspect but have hesitated because if I somehow blow this one I will be left with nothing.
I am running OSX 10.5.7. Installed it several weeks ago. This morning, the computer was acting up a bit. For instance, in my wife's account, I couldn't access our shared iTunes library, getting the error saying it was locked. When I rebooted, suddenly I couldn't get into the machine. It just hangs on a blue screen. I've tried booting with the shift key down, and that didn't do anything. I also tried cmd-s, but don't know what to do with that at the prompt, and cmd-v, which works fine, but just dumps me into the blue screen again.
I have a bootable FW drive, and I can boot fine off that, and even see the internal drive. I've opened files on the internal drive -- it all looks intact. But I still can't boot from the internal drive. I've tried Googling for solutions, but if you google "hangs on blue screen" or bsod or whatever around OSX, you get a bunch of hits related to installing 10.5.7, which isn't my issue, and you also get articles from 2006 and 2004, etc. I was hoping it was some sort of permissions thing, but I am not really sure.
During the boot-sequence the screen of my Imac 27" flashes green (once), then returns to normal. This does not happen when I boot my Windows (Bootcamp) partition, so I assume this is some kind of OSX driver error. This started to happen only after I installed the latest patch (10.9.3). How to get rid of it ?
Upon start up my screen goes to normal gray w/apple logo and spinner then goes black. Cursor is visible and still is moveable but nothing else. I safe booted and bar came up also but then back to black screen.
while i am using my macbook the screen will suddenly go blue and flash between different blue colors like it is trying to work. sometimes it comes back on but most of the time it stays like that. I have to force shut down with the button and then restart...about half the time it is still flashing blue after the restart and if it does work, it goes blue eventually.
dont know if its a problem with the screen or what because the computer continues to work...if there is a movie on, you can here it in the background and the screen just flashes.
I have a fifteen inch 800 MHZ 768 MB ram iMac G4 and for some reason it won't boot up. The apple screen shows up, goes away and then the screen is apple-blue with the cursor you can move around. I left it on overnight and it didn't get past the apple-blue screen. What do I do?
I have an iMac G5 that is clearly booting up--you can hear the skype connection sound in the background--but I'm stuck w/ a blue screen. Tried P-RAM and other keyboard methods, to no avail. Took off back cover, seems as though only 1 fan is working.
Was able to connect iMac to my laptop via target mode, so it's truly a screen connection problem.
I am a Mac-newbie who recently switched from PC to Mac. I know a little about comps and have some experience with Windows and Linux. Now the Mac. I upgraded my iMac 20" (bought it used from a friend) from Mac OS X 10.4 to Mac OS X 10.5 and everything seemed to go according to plan until it came to the re-boot and the comp froze on the blue screen with the movable mouse pointer showing. I tried the apple key with s on boot and did fsck -fy and fsck -f a couple of times. It only shows "The volume MacC appears to be okay". Everytime I typed "exit" to go to the log-in window it still gets stuck on the blue screen. I tried to start it with the installation disk in the DVD drive but now it doesn't eject it either anymore. So, the situation is: I have an iMac with that wont go past the blue screen, with a workable mouse pointer and a stuck DVD in the drive. I am extremely frustrated especially since I do not have a second Mac to read the HD in the iMAc with and I don't have a backup system (except my PC Laptop). What can I do?
I am trying to add a PATH input so that I don't have to keep using ./ for commands that aren't system-native. The problem is that bash doesn't seem to be executing any of the .profile commands.
-Got the iMac refurbished in mid-2010 (2009 iMac i5) -Originally planned on mainly using Windows, so I partitioned the drive to 750gb for Windows and the rest for OSX
I eventually got fed-up with certain things about both Windows and certain limitations/glitches within Bootcamp itself and decided it was time to go OSX, and use the machine properly in all it's Apple glory.
I removed the 750gb of the Windows 7 partition, restoring the whole thing back to OSX. At this point, my computer seemed to be working fine still- OSX would boot up in about a minute or so, nothing that seemed out of the ordinary. After that, I still wanted a small partition with Windows 7; so I partitioned 100gb of my drive and proceeded to install Windows 7. During the Windows 7 installation, as had happened the first time I installed Windows 7 with Boot Camp, I got the "Black Screen" issue. If you are unfamiliar with the issue, see here:.......................
My Imac has been acting up. When I restart the mac it takes forever to start up. It goes to the blue and stays there for several minutes and then will finally boot up. I am running Leopard on an Intel 17 in imac.
My imac will not boot past the blue screen. It crashed whilst loading a new application which I downloaded from the mac website, had to force a shutdown as it wasn't responding, and now it will not boot no matter what I try. I have searched for answers on the forums but my mac will not respond to any keyboard commands even with the installation dvd inserted. I don't get the startup chime anymore either.
My iMac (which was bought in september of 2006) fell around 2 months ago and cracked on the left side of the screen. It wasn't such a big problem until blue vertical lines began forming around the crack and now spreading. Now I don't know what to do, would it be cheaper to get it fixed at an Apple store or can I replace the screen, and if so where would I be able to buy an LCD 15" screen?
I installed snow leopard on my iMac. Everything seemed to go ok. It took about 45 minutes to install and it restarted but now it sits on a blue screen. What gives?
Tried everything from archive and install (wouldn't read disk2 until the 9th try and ended up with 9 system folders). Then tried an Erase and Install. Still it refuses to boot. Get's hung up at the blue screen. Will only boot in safe mode. Now for the last few days even the startup chime is missing. Tried PRAM and NVRAM resets. no help. Won't boot from DiskWarrior boot disk either. Just hangs
iMac Specs: Machine Name:iMac G5 Machine Model:PowerMac8,2 CPU Type:PowerPC G5 (3.0) Number Of CPUs:1 CPU Speed:1.8 GHz L2 Cache (per CPU):512 KB Memory:1 GB Bus Speed:600 MHz Boot ROM Version:5.2.5f1 Serial Number:QP52604RSDU
I bought a Guardian MAXimus hard drive and it seemed to be working fine for the past few weeks. Now all of sudden when starting my Imac 27 I7 the grey screen takes a long time then it get stuck on the blue screen and stays like that. Some times after being on the blue screen it will goto the main page but it takes 3-5 min if it does. When it gets stuck, if I unplug the firewire from the back of the computer from the hard drive it boots up. Any thoughts, their tech support wants me to send the unit back with out doing any testing at home to see what the problem is, seems like a pain in the butt.
When I turned my iMac on this morning (iMac G5 PPC 10.5.8) it went through all of the "normal" steps (gong, grey screen, apple logo, progress wheel, blue screen) and stopped at the blue screen. Thinking it was just a fluke, I shut the machine down and restarted, only to have it stop at the blue screen again. After disconnecting everything going into the iMac except the keyboard and mouse, I attempted to boot into safe mode but it stopped at the blue screen again.
Next, I flashed the PRAM (big gong, single quieter gong) and afterward it came to the blue screen. I reattached my external drive and selected to boot from a 2-day old backup. Using the backup I was able to log into both my regular account and my "test" account (without login items). I still cannot login (except to my external drive backup).
