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. I tried single user mode too but I didn't get any further than the blue screen.
Next, I flashed the PRAM (big gong, single quieter gong) and afterwards 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).
Am using a Late 2011 MacBook Pro with 480GB SSD. Using Yosemite. When I turn on the power it boots but before and at the login prompt it dims horribly but not all the time. Is there anything I can do to stop this from happening?
This week I discovered that the hard drive on my white Core 2 Duo macbook is failing. It's of course out of warranty. I have superduper and am in the process of getting things ready to swap out the drive for a new one. Before going ahead with the new install, however, I wanted to test out the bootability of my superduper backup. I held option while restarting and chose to boot from the backup icon. The OSX tiger splash screen appeared and slowly booted up but then a login window appears asking for a name and a password. I assumed it was asking for my administrator name and password.
Therefore I entered that information. However, after entering the information and clicking on the login button the window shook back and forth and shook off my password as if to say "No. No!" I tried entering the admin information again and again. I tried the short name. I tried to reset my user information. Nothing worked. So, I tried to redo my backup thinking that there might be some issues on that side of things. But now my backup isn't complete. It's lagging at about 14 gigs shy of the full copy. I want to get this machine back to working order but am running stuck.
Ok so today my 27" iMac (10.6.2) was acting kind of weird. In safari and chrome webpages would spontaniously crash for no reason (on my macbook, the same webpages were fine). So, to try and fix this issue, I decided to restart my imac. After all the applications quit, I was left with a blank screen with my wallpaper. It stayed like this for several minutes, so I decided to just hold the power button to force the imac to turn off. When I turned it back on, my user name was not displayed in the login window. All there was for accounts was "other" and a network symbol. When I click other and entered my user name and password, it did not work. I am sure I was using the correct password and username. I also tried: username: root, but that also did not work. So i rebooted again and the same "other" still was there without my real account. So i booted into my Mac OS X install dvd and I repaired the disk and all the permissions (there were a lot of things to repair). I thought that this would solve the problem, but it did not.
I started up my 24" iMac today and it just got stuck on the grey screen before the apple logo appears. I reset the PRAM and I tried using the OSX disc and holding down C. I got to the disk utility and it freezes. I am stuck using my bottom of the line laptop untill I can work around this.
I have a 10.4 iMac. Recently when using it the screen starts to pixelate with large random squares and effectively makes the computer useless. Either that or I get moving multicoloured flashing squares (very psychodelic)Also on booting up the grey screen with the apple logo has dark grey sqaures and then when it goes to the blue screen has a series of smaller squares top and bootom. The booting up stops at this point.
I have ran the disk doctor, but it doesn't seem to have made any difference.
Just installed Windows XP using bootcamp and usually no problems switching between operation systems. Recently started using an USB modem for my wireless internet connection. Internet works on both Mac and windows through the modem. Now the problem is whenever I restart or switch on my computer, it shows a black screen if I choose windows partition to boot. No problem if I start through mac partition. If I unplug the USB modem, everything goes fine and I have to plug the modem after starting windows. Is there any solution so that I can permanently plugin the USB modem and avoid booting problem?
I just bought a iMac M5521 from a friend and it won't boot. It looks like it's about to start up and then it goes to a gray screen and tells me to press the reset button or hold the power button, and it says that in like 3 diff. languages. What do I do? I'm a PC guy and know nothing about Macs.
2MHz PPC G5 iMac OS 10.4.11. Several attempts were made to login with wrong password. The iMac is now frozen on the login screen. Entries can be made in the Username and Password fields, but there is no response to "return" or "cmd" keys. The action buttons (sleep, login, etc.) are grayed out. Power button only puts machine to sleep, and it wakes up at frozen login screen.
I am stuck on my login screen and my wireless keyboard is not working. We've tried everything and even replaced the keyboard. Still the keyboard is not working. Can't get into the programs to troubleshoot because I'm stuck in the log in screen. Wireless mouse works.
Got the iMac 27" Late 2009 (bought it when it came out). Its always had the 'pixelated' issue (see attachment) just before the login screen appears but I've never bothered too much as its not been a problem, until recently where I am getting a lot of 'Kernel Panics' (screen wipes down and locks done entirely, have to restart to get the system up and running again). I am starting to think that the screen issue is finally starting to shows its true colours. Yes, I've done the PRAM resets, disk repairs, up-to-date with all the software etc. No joy.
My iMac started freezing at the login screen. I power up, the apple logo comes up (sometimes the blinking globe comes up for some reason) and then the apple logo flashes as if it restarted or something, and the loading indicator shows up for a few seconds. Then at the login screen everything looks normal (my picture is there and correct name of account is shown) when I type the incorrect password, the text box shakes appropriately. When I type the correct password, the loading indicator appears, the mouse turns into a beach ball, and it hangs until I hard shutdown.
I know it's not a hardware issue because I just booted from the recovery partition and was able to view all my files in terminal. I would rather not reformat the hard drive. Is there a specific file that may be corrupted that I could delete and mavericks would automatically rebuild it?
I have a Mid-2007 Mac Mini and I've noticed every couple days, when I log out of the secondary account, it takes a relatively long time to return to the login screen. The blue screen sits there for maybe 30 - 40 seconds, but then when it returns to the main screen the whole machine freezes. The only thing I can move is the mouse, I can't click any of the buttons such as restart, sleep or get back into my account. I always have to do a hard shutdown.
Hi! Im new to the forums but i really need help with something and i was hoping someone here could help me out. So I just installed Tech Tool Deluxe onto my macbook and then shut it down later. I went back to use it again and when i turned it on a login screen appeared asking me to put in my password. I did that and the screen turned blue (looking like it was loading) and then went back to the login screen. Every time i put in my password it just takes me back to the login screen. I have had my mac for a while and i dont want my hardrive to get wiped out so what do i do? Thank you for looking
I recently updated by 2013 27" iMac to OS X 10.9.3 and since then, I have a weird problem when I switch from one user to another: I often have several user sessions opened for several account, and when I switch from one to the other, or go to the login screen and open an already open session, I find the windows I had left open resized and/or moved. They're often moved to the upper left corner, and resized as if the screen was much smaller than it actually is. It worked without any problem in OS X 10.9.2…
Info: iMac, OS X Mavericks (10.9.3), Late 2013, 27" screen, 32GB RAM
Had a quick question. I'm on my third 27" stock 3.06Ghz imac that was replaced yesterday. The good news is that so far it doesn't seem to have any of the problems of my previous two 27" imac's. There is one thing though. A couple of seconds after pressing the power button to bootup there is a brief mechanical sound from the dvd drive like a quick ejecting sound even though there is no cd in the drive. My first 27" imac dvd drive made the sound but the second imac 27" Imac I had didn't. Is this sound normal? Would be curious to know why two out of the three 27" Imac's I had make that noise.
before I went to bed, I was playing the Sims 2, when my iBook G4 crashed. Our power cord can be a bit dodgy, so sometimes that happens. I didn't really think about it much, just closed the laptop and went to sleep.Last Monday morning, I opened it and pressed the power button. It began turning on, and got as far as the grey screen with the apple and the spinning circle. And then it just froze. The circle stopped turning.
I freaked out a bit, and restarted it a bunch of times, each time with the same result. (One time it stopped spinning, and then told me a restart was required. Huh. The rest of the times the exact same thing happened though.) I even tried unplugging and removing the battery, but it made no difference. So eventually I just shut it and decided to try again later.Last Tuesday I opened it and pressed the power button without much hope, and again the apple and circle came up just fine, then stopped, but then a bunch of words and numbers popped up.I'm a complete computer noob, but they don't look good to me... or are they good?
Kernel version: Darwin Kernel Version 7.9.0: Wed Mar 30 20:11:17 PST 2005; root:xnu/xnu-517.12.7.obj~1/REEASE_PPC
I tried uploading pictures with my s.card and then I plugged in my back up storage disk to transfer pictures and then my computer stopped working as if it was overloaded or something.... I tried forcing quit but that didn't help any. So I just shut it down in hopes that when it restarted it would work but now when it restarts the login screen comes up and after I type my password it just stays on snow leopard default screen(purple sky) and stays there.
/etc/master.passwd: No such file or directory /etc/master.passwd: No such file or directory -sh-2.05b#
I have tried fsck -f and it runs, I get the response The volume Macintosh HD appears to be ok I type "reboot" and it starts rebooting again and I get the loop of:
/etc/master.passwd: No such file or directory /etc/master.passwd: No such file or directory -sh-2.05b#
Is there any way of fixing this problem? I am running OSX 10.3.9 on a 17" iMac.
I've had this 2.0 Ghz 1gb ram Macbook since September 2007 and this was the first time I've ever had any problemas with it. So let me start from the beginning.
It all started this year. One day I picked up my Macbook and turned it on and I noticed that the screen was blinking quite a lot... then it started to get worse to a point I got really worried and it started to annoy me. Sometimes I'd boot it and Leopard would be changing my wallpaper every second (it's supposed to change my wallpaper everyday according to what I've setup in system preferences). While blinking the colors would get messed up and when I closed the Macbook and let it on, sleeping, I'd open it and it would be on the blue screen as if I had just turned it on.
It's worth mentioning that I was running a version of Leopard I downloaded from a torrent and had installed it from an external hard drive. So I thought I should try to format the machine, erasing everything and installing a new and original version of Tiger. Once I installed AND got all updates installed as well it was running perfectly. The blinking had gone away.
Yesterday I installed some new updates, booted and used it fine. Today I turned it on and it won't go past the blue screen and the apple logo won't show up as well. My Macbook just won't boot... I've tried booting on safe mode, booting with the tiger dvd on, i've tried resetting the pram and everything else I could do. The apple logo won't seem to appear and the machine won't boot.
First the blinking screen and now it won't boot.
Any other suggestions besides taking it to a support store? It's worth mentioning as well that I live in Brazil and support to Apple computers isn't as great and cheap as it is in the US. I've had this Macbook for less than 1 and a half year.
A few times now, maybe once a month, I've restarted my (first generation, 2006) Macbook and gotten nothing but a black screen, while the computer seems to be continuing to boot in the background. The boot-up sound plays, and if I leave it to finish, the screen goes from black to a dull grey, and I'm able to shut it down by hitting the power button and pressing Enter, as if the shut-down dialogue screen has appeared. The pattern so far seems to be that if I shut down down mid-boot, by holding the power button, the next boot will still have a black screen; but when I let the boot finish and shut down from 'within' Mac OS X, the next boot works normally. I restart the computer once or twice a week, and this only happens occasionally--but it has been happening repeatedly.
I'm trying to boot a relatively new intel iMac. I can boot to a blue screen, in which all that happens is the music that happens with the welcome video of mac OS X.
I currently have no keyboard to do diagnostics with because I don't have the wireless keyboard that came with the mac, nor a wired keyboard. I'm planning on borrowing a simple wired keyboard to use to diagnose the mac in verbose mode and safe mode etc.
The owner of the mac has done a complete reinstall, hence the welcome video music, and that hasn't worked, as the screen shows no sign of anything other than blue.
I sign in and when Safari opens, whilst Microsoft Messenger is downloading, the monitor screen vibrates between Safari and Messenger at a very, very, fast pace. Back and forth, back and forth, alternating between the two. When the booting process is completed the computer is fine. Everything is OK. Any know what is causing this, and what to do about it?
Info: iMac, Mac OS X (10.5.8), 2.4 GHz Intel 2 Duo Pen
Is it possible to force the login screen instead of the locked screen when the computer goes to screen saver? I ask because the computer is used by the entire family - and by going to the login screen with all the users shown, the individual user will be more likely to login as themselves rather than just the current locked screen user.
I have a 2005 G5 PowerMac. It has been locking up lately. Tonight it will not boot. Everytime I turn it on I get to the apple screen and the circle keeps going round and round. I then followed the directions to reset the PMU and I disconnected the second hard drive. Now it will still not boot and gets to the apple screen, circles a couple of times then locks up. I have disconnected everything except the monitor, keyboard and mouse and still have the same problem. The largest issue is the CD drive will not open so I cannot attempt to reload the OS or anything else that requires the CD drive. I do not know if there is a manual way to open the drive. I have searched the help forums and only see the keyboard as an option. I have read many posts that the 9800 video card is a problem - we have an ATI 800 XT and I have not read anything hear about that card being an issue.
Information: PowerMac G5 1.8g Dual-core Mac OS X (10.5.1)
Yesterday I installed the latest security updates for my ibook via software update. I'm not sure if this is related to my problem, but I thought I might as well mention it. A few hours after installing the updates, I turned on my computer. Everything was running fine, however as I was listening to music and surfing the internet, my screen turned black. I checked the contrast and it was all the way up. The screen then turned completely off. Upon restarting the computer, my screen got to the loading page with the apple icon and the loading circle, and then turned black and flickered every so often with a screen of vertical multi-colored bars.
I held down the power button to turn the screen off, and the flickering increased, before becoming completely covered by the multi-colored bars and then shutting off. This morning I tried again and my computer actually booted up. However, after a few seconds the screen went black, paused for a few seconds, then went completely red, then green, then blue, then three shades of gray, and finally black again. It repeated this cycle twice before the screen turned itself off. Is this a virus, or hardware/software malfunctioning. I've had my ibook for two years.
