Random Blackouts
Ive been getting random blackouts on my macbook. After the screen turns on, i will need to reconnect wifi. Im wondering if it is something to do with my internet or is it a macbook issue?
It will just work as normal. The problem is that i just fixed my mac for a corrupted os and it might be pure coincidence that this started around that time as well. So im just worried that the os is corrupted again.
Similar Messages
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Random blackout atfer upgrading to xorg 1.6?
OK, I'm not very sure if this is related to xorg, here is the situation:
After upgrading to xorg 1.6, I restart X and start firefox to surf the internet,
atfer a few hours of usage, my screen suddenly blackouts, and it seems like a hard crash,
I can't use crtl-alt-backspace to kill X nor use crtl-alt-Fn to switch between virtual consoles,
this is very frustrating since I'm always very proud of my super-rock-solid Arch,
I have NEVER had issue like this, since it happens after upgrading to xorg 1.6,
I suspect the incident is related to it,
does anyone have a similiar situation?
any suggests or thoughts would be very appriciated.
SeanYou have to add the 2 patches given by mlee and recompile xorg-server
Here's my modified xorg-server PKGBUILD
# $Id$
# Maintainer: Alexander Baldeck <[email protected]>
# Contributor: Jan de Groot <[email protected]>
pkgname=xorg-server
pkgver=1.6.0
pkgrel=4
pkgdesc="X.Org X servers"
arch=('i686' 'x86_64')
license=('custom')
url="http://xorg.freedesktop.org"
depends=('hal>=0.5.11' 'libgl' 'libxfont>=1.4.0' 'openssl>=0.9.8j' 'libpciaccess>=0.10.5' 'libxv>=1.0.4' 'pixman>=0.14.0' 'xcursor-themes' 'xkeyboard-config>=1.5' 'xorg-server-utils' 'xorg-fonts-misc' 'xbitmaps' 'diffutils' 'xf86-input-evdev>=2.1.3')
makedepends=('libx11>=1.2' 'mesa>=7.4' 'xf86driproto>=2.0.4' 'xtrans>=1.2.3' 'libxkbfile>=1.0.5' 'randrproto>=1.3.0' 'renderproto>=0.9.3' 'xcmiscproto>=1.1.2' 'bigreqsproto>=1.0.2' 'resourceproto>=1.0.2' 'videoproto>=2.2.2' 'compositeproto>=0.4' 'scrnsaverproto>=1.1.0' 'resourceproto>=1.0.2' 'libxinerama>=1.0.3' 'xf86dgaproto>=2.0.3' 'recordproto>=1.13.2' 'libgl>=7.4' 'glproto>=1.4.9')
conflicts=('catalyst-utils<=9.2')
options=('!libtool')
provides=('x-server')
groups=('xorg')
install=xorg-server.install
source=(${url}/releases/individual/xserver/${pkgname}-${pkgver}.tar.bz2
xorg-redhat-die-ugly-pattern-die-die-die.patch
server-1.6.patch
hal-wait.patch
xserver-1.6.0-xinerama-crashes.patch
xserver-1.6.0-xinerama-cursors.patch)
md5sums=('aafe73f5807ce8bb534727ecb72467c7'
'1a336eb22e27cbf443ec5a2ecddfa93c'
'064559385557ad02432a1e800b92b14e'
'f16d2caef84e1a9c4075b6c5e145512d'
'fdb4fb466459c32c897ee3b405b6f849'
'a30429f7c2114e7170d62858472ec102')
build() {
cd "${srcdir}/${pkgname}-${pkgver}"
# Get rid of the ugly pattern
patch -Np3 -i "${srcdir}/xorg-redhat-die-ugly-pattern-die-die-die.patch" || return 1
# Upstream fixes from server-1.6 branch
patch -Np1 -i "${srcdir}/server-1.6.patch" || return 1
# Revert waiting for hal, assume hal won't show up when initial connect fails
patch -R -Np1 -i "${srcdir}/hal-wait.patch" || return 1
# Avoid Crashes when Xinerama is enabled
patch -Np1 -i "${srcdir}/xserver-1.6.0-xinerama-crashes.patch" || return 1
# Avoid Cursors problem with xinerama
patch -Np1 -i "${srcdir}/xserver-1.6.0-xinerama-cursors.patch" || return 1
# Fix dbus config path
sed -i -e 's/\$(sysconfdir)/\/etc/' config/Makefile.* || return 1
libtoolize --force || return 1
aclocal || return 1
autoconf || return 1
automake --add-missing || return 1
./configure --prefix=/usr \
--enable-ipv6 \
--enable-dri \
--disable-dmx \
--enable-xvfb \
--enable-xnest \
--enable-composite \
--enable-xcsecurity \
--enable-xorg \
--enable-xephyr \
--enable-glx-tls \
--enable-kdrive \
--enable-install-setuid \
--enable-config-hal \
--enable-config-dbus \
--enable-record \
--disable-xfbdev \
--disable-xfake \
--disable-xsdl \
--disable-static \
--sysconfdir=/etc/X11 \
--localstatedir=/var \
--with-default-font-path=/usr/share/fonts/misc,/usr/share/fonts/100dpi:unscaled,/usr/share/fonts/75dpi:unscaled,/usr/share/fonts/TTF,/usr/share/fonts/Type1 \
--with-xkb-path=/usr/share/X11/xkb \
--with-xkb-output=/var/lib/xkb \
--with-dri-driver-path=/usr/lib/xorg/modules/dri || return 1
make || return 1
make DESTDIR="${pkgdir}" install || return 1
rm -rf "${pkgdir}/var/log" || return 1
install -m755 -d "${pkgdir}/etc/X11" || return 1
install -m755 -d "${pkgdir}/var/lib/xkb" || return 1
# Needed for non-mesa drivers, libgl will restore it
mv "${pkgdir}/usr/lib/xorg/modules/extensions/libglx.so" \
"${pkgdir}/usr/lib/xorg/modules/extensions/libglx.xorg" || return 1
install -m755 -d "${pkgdir}/usr/share/licenses/${pkgname}"
install -m644 COPYING "${pkgdir}/usr/share/licenses/${pkgname}/" || return 1
For now the cursor is ok and I don't experience crashed when I hold keys. -
I completed a System Restore on my iPhone 3g and itunes screwed up (URGENT)
I was having major technical issues involving really bad lag and random blackouts.
So, I tried to do a system restore. Before itunes would let me do anything, I was required to do an update. After I updated, I proceeded to do the system restore. Finally after the restore process ended, my iPhone restarted and there was no data on it. On iTunes, it recognized my iPhone as "Unknown".
I have a feeling that when iTunes updates it deletes (or at least, doesn't automatically backup your device info).
Is there a certain folder (on windows vista 32bit home premium) that contains all of the old itunes data even for iPhones and other devices that I can access and manually put back into iTunes?
Please help, this is extremely urgent.Hi McCrubb!
I have an article here that can help you restore your iOS device more thoroughly:
iOS: Unable to update or restore
http://support.apple.com/kb/HT1808
Thanks for using the Apple Support Communities!
Cheers,
Braden -
Somehow hdmi and dvi cables cause random blackouts when not playing games. When i start playing game, it tends to blackout a few times then complete pitch black. The vga cable works. Any idea?
Yes, I initially set it up with the HDMI as the only connection, but I also tested having both DVI and HDMI connected at the same time - in this case it detects the model number of the monitor through HDMI and gives me the option for extended desktop etc - however, if I try selecting duplicate screens and then cycle through the input types on the monitor, when it gets to HDMI the screen is just black.
I'll swap the monitor with my TV when I get back home tonight and see what the results are then.
On other thing issue (probably unrelated) is I get noticeable ghosting, especially when scrolling down webpages (dark text leaves a white silhouette) - I'm using the same DVI cable and monitor that I was on XP, the only difference being the OS and the graphics card. -
i just configured a t42 for my use at home. xp sp2. all applicable msoft and lenovo patches. it works and then the screen goes black and there are thin white vertical lines across the screen. reboot clears it till the next time.
i ran pc doctor 5, which lenovo provides, for 5 passes with the script that tests everything and nothing happened. but if i am just working it will do it.
no specific pattern of use causes it. suggestions please?
thanks.What George says is correct. However, the random blackouts are more likely also caused by the dying CCFL backlight bulb, or possibly, a failing 'inverter card' (a fairly cheap fix). Here's how to tell if it's the backlight, or the (more serious) "loose GPU problem": when the screen goes dark, look at it closely under a bright light, like a flashlight beam. Can you still dimly see your desktop windows as they were before "light's out"? If you can, then congratulations -- it's the backlight (or the inverter, which powers the backlight bulb). Replacing either the backlight or the inverter is a lot cheaper than a new LCD panel, or GPU repair (which'll take an expert with a soldering station, or a new motherboard.) In any case, I hope you're all under warranty!
<> New backlight: ~$75-150 (or only about $15 if you are skilled -- or crazy! -- enough to DIY);
<> new inverter card: ~$20-50;
<> GPU resolder/new motherboard: ~$175-400, or more!
These are the prices I've seen lately, and believe me, I've been looking. Why, you might ask? Because, my friends, I, too, am the proud owner of a T42p with a pink, dim screen that's blacking out randomly, from every few seconds to a few minutes. In fact, I just typed this post on it.
I feel your pain.
I have decided to go the DIY route -- not because I'm particularly skilled, but because I'm particularly broke (and out of warranty). Will post the outcome when the time comes, with links to vendors. Wish me luck! -
Black screen on iPad mini-will this work??
Like many posters, I have been trying to solve the inability of my iPad mini 32gb wifi to just start on command and stay working. The screen goes black then the apple appears, pushing buttons has not helped; there is no pattern in the way it stops functioning. I have done a compete recovery and restore to both iTunes and iCloud, removed some potential offending app's, still get the random blackout. Has anyone tried doing just the "Erase all content and settings" without restoring all optional app's, then trying all functions? If there are no optional app's on the iPad and it still does the random blackout, then it's the iPad or the iOS, or both. Has anyone tried this??
Well, I pulled the pin on this grenade and it blew up, with a fizzle. Wiped everything clean, went into recovery mode and restored nothing. The iPad now has only the pre-packaged app's but still quits randomly, sometimes when entering the pass code or even when swiping the bar. It stays on for a few minutes, a few seconds or over an hour; all the while plugged into the power source. So I guess my next call is to the apple store. I'll let y'all know what happens. bob.c
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MacBook Air Mid 2013 - Random system blackouts
Hi,
I just got the latest MBA 2013 about 3-weeks ago.
I have been noticing quite frequent system blackouts with regards to the laptop.
By system blackouts, the system responds as if it had entered a sleep state and returns back to its wake state a few seconds later.
This problem happens quite randomly, sometimes even when I am simply just typing or surfing the web when it is firmly seated on a table.
Twice, it entered the blackout and the keyboard died, forcing me to reset the system entirely in order to resume normal functions.
I have check the web and some say that it is a problem with Mountain Lion that could be observed since 2012. Is this true? Or is it possibly a hardware sensor issue?
Thanks
DavidA new Mac is in warranty for 1 year from the date of purchase.
A new Mac comes with 90 days of free tech support from AppleCare.
AppleCare: 1-800-275-2273
Call AppleCare.
Best. -
IMAC 27" random screen blackout
my 8 month old iMAC 27" quad core machine recently started to "black out" Screen goes black for no reason and the only remedy is to hit the power button - usually twice. This will bring the system back to where it was, all open APPs etc. will be exactly where you left them. I also tested the speaker volume up/down keys to see if the "system" was still functioning during a screen black out. THe CPU etc. is still avtive as the speaker volume when maxed out will "beep" at you.
I called tech support - they had me do some special resets of power control and PRAM - no luck
I took the system into Apple store for Genius Bar appointment - 2 hours of running the mac in the store, of course it did not black out....however, they ran other diagnostics and ran a bunch of utilities, graphics etc. to max the RAM and CPU load, heating up the system but still nothing happened. they suggested I reistall the OS by doing a hard boot and holding down the command key to prompt me to re-install the OS from the "cloud". This did not solve the problem either.
I then took the system back to Apple and told them to fix it or replace it. They kept the system for 5 days, and replaced
item 661-5948 Board, Logic, 2.7GHZ, Quad Core i5
item 661-5967 card, video, AMD radeon HD 6770M, 512M
item 661-6615 LCD panel 27 inch with BLC
and labor: TOTAL COST $1183.32
This was all under the first year warranty so I did not have to pay for this out of pocket. If you look at the list of repairs, they effectively gutted my iMAC except for the HDD and enclosure. Ahhhhh at last I thought I would be back to a fully functional iMAC. Two days after getting home and just browsing the internet the blackouts started again.
Once the system blacks out the first time (which appears to be a completely random amount of time) it will then black out more frequently after hitting the power button.
It's time to call Apple again and demand a new system, wondering if the iMAC LCD crystal / video components are suffering from a manufacturing defect....as it seems the new components they replaced are suffering from the same issue.
APPLE - would appreciate you recognizing this problem and working on resolution.
thanks,
Share holder and completely converted MAC power (family) users!!!!Hi, I hope you find this information useful:
A few years ago, we purchased iMac 27" 11,3 (Mid-2010) (with i7 2.93Ghz, ATI 5750 1GB VidRam, etc.) for our offices and software development team. They were originally shipped with Snow Leopard and worked as expected and without any problems. However, a year later, we upgraded to Lion and all of machines immediately exhibited the same problem: the screen would go to sleep by itself and would require a hard reboot or sleep on/off. (Only the screen was asleep and the rest of the iMac continued to function; this was confirmed by screen sharing to the machine.)
Due to the severity and impact on our business, we immediately contacted Apple and their genius bar staff in New York/SoHo. They were unable to determine the root cause, so they replaced all of the logic boards, video cards, and screens, and got us back online asap. This resolved the problem, but we were curious to know why. After days of rigorous testing, we concluded that the issue is caused by a bug in MacOS. Specifically, faulty Kext files (Kernel Extension files extend the functionality of the MacOS Kernel) for the ATI drivers. So, why did the replacing the hardware work? We think that the Kext files that were released and distributed with Lion (and later MacOS versions) correctly supported the newer hardware revision of the replacement components, but not the older ones.
If you're experiencing this problem, short of replacing the components or waiting (for another 3+ years) for Apple to hopefully fix their OS software, you can lessen the effects and be able to recover faster by doing the following: (Please bear in mind that these are not permanent fixes.)
Turn on "Hot Corners" and assign one corner to "Put Display To Sleep". When your screen goes to sleep, move your mouse (which still works) to that assigned screen corner for a second, then move it again. This will wake your screen. You may have to do this a couple of times, but it's much faster than a hard reboot or a sleep on/off for your iMac.
Turn the brightness of your screen to a low setting (10%-15% of the total brightness).
Turn on screen sharing, so you have a last resort method of accessing the machine.
If you're not convinced that it's a MacOS software problem, then do what we did and see for yourself; install Windows 7, Windows 8, or Linux via Bootcamp or as the only OS on the iMac. Those operating systems and drivers worked flawlessly for us; the bug does not occur and the screen does not go to sleep, but if you dual boot and switch back to MacOS, the bug reappears because the iMac is loading faulty Apple MacOS software.
Good luck! -
Random screen blackout 2009 24 inch Cinema Display... HELP.
Random screen blackouts with 24 inch Cinema Display (purchased 2009). Never used with anything but same Macbook Pro (2009). No hardware changes on MBP. Just started June 6, 2012. Super annoying. Anyone else having this issue? Recommendations?
Hello, Ertjie.
The link titled Download the 24-inch LED Cinema Display Update from the kb/TS4045 article worked for me when I tried it today. Click the "Download" link I post here or try the one in the kb article again. Perhaps it will work for you now?
However, I note that the kb article expressly states that this firmware update:
...is only intended for use with and will only install on the Apple 24-inch LED Cinema Display while the display is connected to a Thunderbolt-enabled Mac. (EZ Jim emphasis added)
If your Mac is really using Mac OS X (10.6.8) as shown in your initial topic posting, your Mac may not be Thunderbolt-enabled. If so, contact Apple or your Apple-Authorized Service Provider for help.
Message was edited by: EZ Jim
Mac OSX 10.8.3 -
BLACKOUT - iMac 27" Randomly Blacks out
My screen turns off randomly (blacks out), in order to get it to come back on i have to do a hard reset. (Hold down the power button to turn it off)I HATE to do this had to do it 3 times.
When this does happen I'm not doing anything that is demanding at all, listening to music and surfing the internet.
I have the latest firmware for the 27"...before the update I had no issuses.
Temperatures do concern me, although it appears that all temps are with in safe thresholds.
If temp is not responsible what is? My iMac is 6 months old!!!Updating my last post:I get the blackout without the restarts and tried all the suggested remedies on these forums with no relief. I can see light from the grill covering the ram access port so I do not think it is fully shutdown but my # week old iMac will not respond to any wireless input devices so I must press the power bottom on the back to restart It which it does in a normal fashion. The machine does not seem to be running hot (much cooler than my black Mackbook) . I guess I will be bringing it in but I do not feel optimistic given the posts by users who did so and did not get a fix. I think this issue will take some time to resolve. I just wanted to add my two cents.
See Berry's (with an a) list of similar posts as follows:
27-inch / 27" iMac Random Shut down:
http://discussions.apple.com/thread.jspa?messageID=11791328#11791328
Random Restarts on Intel based iMac
http://discussions.apple.com/thread.jspa?threadID=1943134&start=0&tstart=0
Sudden restarts and shutdowns on iMac
http://discussions.apple.com/thread.jspa?threadID=1865839&start=0&tstart=0
And this current one here: 27" Core i7 iMac blacks out then restarts itself for no reason:
http://discussions.apple.com/thread.jspa?threadID=2258132&start=0&tstart=0 -
Weird problem: Random musicstream and Airport connection blackouts.
Greetings Appleforum members,
this is the first time I post on this forum so bear with me concerning any formalities or convention my post might lack (in which correction is appreciated).
I have a problem with my airport express over which I stream music by connecting the Airport Express to my (secured) wi-fi network.
The problem consists in having seemingly random dropouts of my music stream (music temporarily goes mute or stops playing entirely) that's sent from my 'Blackbook' which is connected to the same wi-fi network as the Airport express (I just 'added' the latter to the network) and in certain cases the Airport express itself gets knocked out as well (the light flashing orange for a bit, though this isn't necessarily the case when the music drops out).
To add to the overall weirdness it even seems to affect my wireless mouse (a cheap mouse with a wireless USB receiver) whose movements
gets sporadically distorted along with the music stream interferrence; when I pause iTunes, the mouse acts normal again (allthough this too isn't necessarily the case when the music stream drops out, but coincides with it sporadically).
I know my way around Mac OS X for the most part, but lack the necessary experience in networking Airport issues to solve this problem and to say the least, it's quite annoying when your music stream drops out on occasion, sometimes near every minute for an hour long (in which case I revert to smaller wired speakers which do not have this issue, meaning that it is some sort of wireless problem).
I have an iPad as well and have connected it via Airplay to my Airport to avoid my mac (hoping to isolate the problem to its network card), but the iPad shows the same sporadic dropouts, though less frequent and less strong.
I have honestly no idea how to isolate the problem or even narrow it down a bit so if anyone here has any tips or preferably a complete solution, it would be much appreciated. I hope to return the favor someday concerning someone else's problem on these boards (should I have useful insights).
Thanks in advance, Robin, NL.Hei,
I have experienced the same thing for ages, and finally got around to trying to fix it. I seem to have found a solution which may well be temporary, but has worked fine for several days now whereas I got frequent dropouts when listening to podcasts via iTunes.
My solution was to change the wifi channel from 6 to 1 - this was recommended by an Android app Wifi Analyzer, but I see it is quite dynamic as wifis are turned on/off in my vicinity.
You change the channel via Airport Utility, Base Station Manual Setup, Wireless Tab, Channel... simply try another one and see if it helps
Mvh -
Fan randomly running loud + computer not responding
I have been facing a problem for the last several weeks on my PowerMac G5 that technicians have not been able to solve either.
The computer randomly stops responding and the fans start accelerating slowly until they reach their top speed and then stay at that speed for indefinite periods of time. I cannot see any pattern in this - it happens both when the computer is running some process and when it is idle.
Each time this happens, the only option for me is to do a hard powerdown (hold down the power button).
I saw another question about fans running at high speed, but that case, it seemed as if the computer continued to respond.
Any help on this would be appreciated.I am having the same problem.
Now before you start taking advice to back up all your data, reformat your hard drive, and reinstall all the software; please take note of a few things:
first off, I'm disappointed/frustrated/melancholy that this is happening to me. I spend $5000+ for a "reliable" Apple computer. Then it doesn't want to turn on because its not safe. Sorry if I drown this post with bitter sarcasm but I am coming to the end of the line with my patience.
I called Apple Care, read a bunch of posts (here and elsewhere), and yes I do know about the SMU Reset button (like that really does anything?).
My problem happened a few weeks ago and I thought nothing of it at first. There was a power outage for a quick second and it turned everything off. When I went to turn on my computer, there was no chime, the red light was on, and the fans were running and eventually began running very loud. After letting it run like that in hopes of the screen lighting up, I turned it off by holding the power button. By the way, there's nothing on the screen and the keyboard doesn't work (I use a wireless keyboard, but I plugged in the OG cord keyboard to push whatever series of buttons recommended by these "geniuses") Trust me, the computer doesn't make it to that part of the boot process, so stop with commandoption+PR or F12 to get the CD out. It doesn't work! What's up with this computer! It can handle all these intense calculations,etc. but a power surge is going to shut it down indefinitely.
So I left the computer came back the next day, turned it on and its fine. Cool, I'm happy. It's Working!! I go on a few weeks, then I go to turn it on this Monday, same problem. But actually a worse situation. I had a client come over and the computer wouldn't work. I looked like a idiot. Couldn't do anything cause my computer didn't want to turn on. I do music production/editing. I use my G5 for running ProTools LE. I have other programs but that is the main one I use. There's nothing wrong with it. It's optimized for use with the mac. So those people who are going to advise me to uninstall all my software and all that - I appreciate your concern but don't give advice when you don't know anything!
So I am getting frustrated. My client left a little disappointed, but what can you do? I tried to call AppleCare on Mon. but it was Memorial Day. So I waited for Tues.
Tues morning, my computer turns on like everything is fine.
I'm happy but cautious. I talk to AppleCare rep. He tells me that it is a common problem they have heard about with the G5's. Wherever blackouts, brownouts, spikes, sags, dips, and other electricity inconsistencies occur, the Power Mac G5 has a breaker in it which flips so it doesn't receive uneven power supply and damage internal components.
I like that feature. Good thinking Apple. Protecting my investment from bad electrical grids. But I don't like the fact my computer has a mind of its own where it decides when it wants to boot or when it wants to sit there and run its fans all loud.
I shut down Tues morn to go to work. I come back in the evening, it doesn't want to boot up. Instead of getting angry trying a bunch of times to turn on/turn off the computer, I leave my house all together and go and have a few drinks. I come home ,don't even look at my computer, and go to bed.
I wake up Wed. morning. Go to turn on my computer. Successful boot. It's running. Okay, I think, I'm going to get down to the problem. I read all the logs, not like I know every piece of info, but just to see what's happening. Everything looks fine. I decide to run the AppleCare CD Tech Tool. It says restart holding down C. I do that. When the gray Apple Logo comes up, all this writing about kernals comes up and it tells me to restart or shutdown. I shutdown and attempt to restart, same problem: no chime, red light on, and fans eventually spin loud. Now the CD is stuck in there. I'm going to take it to the Apple Store tomorrow to if these "geniuses" can figure it out.
(Just a side note: Apple calls them geniuses, but its hard for me to think some disconnected college kid with a bad haircut and questionable social skills knows what's up with the power supply issues of a computer; maybe I'm wrong, but you can run your diagnostics and look at the chart of what to do and all that BUT Apple needs to listen to the people)
I am going to get a UPS (uninteruptable power supply) with a clean sine wave output to curb the issue at my end. It's not my fault I live in a area that receives uneven power output. I live in Los Angeles. Summer is starting up and I think its going to be hot, so blackouts, power dips and sags are inevitable. I just don't understand why Apple hasn't considered this problem and fixed it with something:
A recall to change the power supply, Is it something on the logic board?, are they going to reimburse me for lost income (Ha, yeah right)
I really want to know how many people are having this problem?
From what I've heard, it is a common problem.
So I think we need a common solution.
If its so common, it must be the computer. We are all going to live in different areas where the power may vary. Not all of us have the consistent power flow of 1 Infinite Loop in Cupertino, CA. So if it is such a common problem, Apple needs to fix it.
I can't spend more than five grand on a super duper computer and have it wuss out on some power issues.
Its a loss of income and productivity to me.
I can't have that anymore.
Sometimes my computer turns on, sometimes it doesn't.
I bought my PowerMac G5 in April 2006, its been about a month and a half and I'm having these problems.
Thank you for your time.
If anyone else has been having this problem, I feel for you.
It was been very difficult for me not to curse in this post, but I have tried to extend the same respect to all that use these discussion boards to create dialogue, find help, and create solutions.
LETS FIX IT!
Peace,
Swami G
Power Mac G5 Mac OS X (10.4.6) 4.5 Gb RAM
Power Mac G5 Mac OS X (10.4.6) Dual 2.3 GHz / 4.5 Gb RAM
Power Mac G5 Mac OS X (10.4.6) 4.5 Gb RAM -
I have a 30in cinema display attached to my iMac and the iMac screen randomly goes black while the cinema stays active. I can put it to sleep and log back in which fixes it, but often it happens again immediately after. Sometimes it happens so quickly I can't even finishing logging in! I'd like to know if this is a Mavericks issue and I will roll my machine back. Thank you!
RocknOats
Wanted to update you on my situation with this.
So far 8 hours have gone by and I have not had a screen blackout.
FIRST I did the Hardware Test. TWICE on the extended test, the instructions on the KB Article explain. It took almost 3 hours, but while the test was running, both times, my computer screen did not go black.
I did get an error message, both times. Different each time. I looked up both of the error messages on discussion boards. Lots of conflicting info
One good thread said my first error was that my hard drive was bad and would probably fail.
The next error message I researched said that a fan was bad or needed replacement.
(information comes from other folks on discussion boards, not from Apple or technician)
Not sure what exactly those 2 error messages indicate but I followed a thread where someone found a solution by doing the following. So far it's worked.
After Hardware Test I did a shutdown and an SMC resest. Unplugged computer power source from wall and computer for about 10 minutes.
Finally after a restart I downloaded "SMC Fan Control" (CNET Downloads has a nice safe copy you can download)
There is a temperature monitor and from what I've read so far, keeping the CPU temperature under 50˚C is ideal. Making sure your fans and computer is in a well ventilated area/room too of course.
The SMC Fan Control helps you set your own speeds on the fans and so far everything has been going normal. -
Why does my MacBook Pro keep blacking out randomly?
I just fit this brand new MacBook about 3 weeks ago off of Amazon. About a week after I first used it, it started to blackout randomly & take me to put my password back in. I would start typing my password, then it'd do it again. Sometimes. I tried changing the settings for the energy saver, but it still continued to do it. It might happen minutes, seconds, or hours between. It's frustrating when I'm writing papers or online or doing what I need to do for school. It doesn't erase anything or turn off, but it's still not functioning like it should be for the money I paid for it. If you could help me out, if greatly appreciate it. Thank you!
While I'm not sure what the problem is, it sounds like your machine blanks out unpredictably, or exhibits general problems that are hard to describe. Something seems to be wrong, anyway
You may want to visit your local Apple Store/Genius Bar. It's a good educational resource, in case you just need to learn about your unit's features. But if there's a problem, they're the place to get it fixed. You're going to want to document the issues, specifically, and preferably so that an Apple employee can duplicate the problem on your machine. -
SERIOUS BLACKOUT ISSUES PLEASE HELP
my Powerbook G4 is a wonderful machine. i love it dearly. but after upgrading to tiger 10.4.3 my system crashed. i re-installed Tiger 10.4.2 to be safe and have been having strange blackout occurences that happen randomly when i'm typing or surfing or just playing on my computer. the screen goes to sleep mid action, i wake it up, it sleeps again and by the 3rd time completely blacksout. i've also noticed that i don't hear my fan going anymore. could this be an overheating issue? how much does it cost to replace a fan? please help
I am having a similar problem that started after upgrading 10.4.3 as well. it started with my comuter randomly going to sleep, then it began getting stuck in a mode where it would alternate between sleeping and waking, now the screen just goes black (after a brief glimmer of blue) when I start it up. Sometimes i can see a dim out line of the log in screen. I took it to the apple store and they said to try resetting the power control unit. This worked for a while, but now it does nothing at all.
Interestingly, I can run from an external monitor with no problems, but this defeats the point of a laptop! The other thing i noticed is that the computer is much more sensitive to vibrations--if i bump my desk it will go to sleep. I tried the suggestions on a previous post-- that this was a track pad issue but installing Sidetrack did not improve the problem.
Is this a bad logic board?
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