Power Mac :: Why Is ADC Monitor Not Turning On After Put G5 To Sleep
Mar 7, 2012
Why is my ADC monitor not turning on after I put my G5 to sleep? I am running an adaptor to my G5 from the ADC monitor (DVI to ADC).The screen usually runs fine when I reset the monitor or turn it off but as for when I put it to sleep, no such luck..This has happened once before and last time I just waited and randomly turned it on a couple days later and boom, the screen booted up.I have tried basic options, like resetting the computer several times, pulling the power cable out of the G5 for several minutes and even a PRAM reset but nothing seems to have made it work as of yet.I assume it's within the G5 as it has happened a few times and the monitor works fine when I test it on other computers..Also as I mentioned before this is not the first time it occured and it just randomly seems to come on whenever.
Info:
ADC Monitor and G5 Power PC, Mac OS X (10.7.3)
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Feb 6, 2009
As the title asks, really. Is it safer for an iMac to be shut down from a power cut whilst turned on, or whilst sleeping? We tend to get a power cut once every couple of months.
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Jan 9, 2011
I've run into a very nasty problem with my macbook (late 2007 normal macbook model I think). Whenever it closes, the monitor goes black. This is normal. What isn't normal is this: whenever I open it and then either start it/awaken it, it gives me the screen... and then the monitor turns the brightness off again! This happens randomly, I have to close and open my screen quite a few times to get it to work-even if I restart the computer. I don't what's causing this, or how to fix it, although I have a hunch that it's the hinge on the back; it started shortly (but not directly) after I replaced my CD drive... I have the tools and instructions needed to open my machine up if it's a fairly simple fix, but I need to know what's going on first.
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Nov 29, 2010
I'm having a regular problem with my MacBook screen. Every time I put it to sleep, when it starts back up again the screen stays blank / black. The way to remedy this issue is to close the lid and open it again immediately. Then the screen comes on and no further problems.
Serial: W8905MCX1AQ
It's a 2008 aluminum 13" MacBook with snow leopard 10.6.4
2Ghz Intel core 2 duo with 4gb of ddr3 RAM.
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Apr 6, 2009
how do i turn sleep mode off on my powermac g4?
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Apr 11, 2009
My macbook, 3 years of age, always turns on whenever I put it into sleep mode. It gets REALLY annoying. So I close the lid, and a few seconds later, you hear the macbook turn on, then a few seconds later, it goes back to sleep mode. This happens endlessly and it gets really annoying.
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Jul 31, 2010
I'm a Mac Pro guy and this is my first Mac laptop. How do I make it so nothing happens when I close the lid? Not using external display or anything. Sometimes it's just nice to be able to close the laptop when moving from place to place, I just don't see the need to sleep the machine when I do so. I do this on my Acer laptop all the time.
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Sep 7, 2008
When I turn on my ibook G4 it does the start up chime and it goes to the start up screen and begins to load with the blue background and the gray box in the middle, every time though, it only gets to the "Waiting for network initialization" then it goes right into sleep mode, the white glowing button comes on, and I can't get it out of sleep mode.
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Nov 17, 2010
I have a first gen iMac 24 Intel with a dead logic board. However everything works in it. The screen, power supply, isite, speakers. appear to work fine. I got a MacBook Pro to replace it and I wanted to know if there is a way to turn the old iMac into something that is more like the Apple 24� display, even if I need to do electronics work in it.
I am in IT and have access to a lot of dead stuff I can scavenge for parts. I am also an electronic technician, so I should be able to do this. I just don�t know what I need to do.
Hunting down info on this topic has come with that there are controller issues. If I can pull a controller out of another dead LCD display that I happen to have, I can see it working. I can even see the possibility of adding the electronics from a USB hub to pipe USB functions over a DVI cable. And get the iSite and speakers working.
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Jan 13, 2009
I'm looking to turn my new macbook pro into an external mimic monitor for my new imac. ...like, so that I can move my mouse from the imac screen to the pro's screen. How do I do it? Is it possible to do it wireless?
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Jun 14, 2009
I connected my Samsung syncmaster 215TW with macbook - via minidisplay port reduction to DVI. when I turn the monitor verticaly, nothing happens... do I have to install some aditional software to my macbook?
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Dec 19, 2009
My 2006 mMcBook is dead and parted out. I still have the case and screen, but no HD, RAM, battery, or working logic board. How can I take the screen and make myself an external monitor out of it? I am presuming it's possible. I can solder a little and I love messing with parts from radio shack. So, has anyone heard of this? I tried googling it but couldn't find any search terms that brought me what I wanted.
Basically, I want to convert the video cable to DVI or even better, Display Port, and then figure out how to solder in a power source to just plug into a wall (since I'm assuming it'd be too big of a job to have it powered off of the FW800 or USB from the macbook pro). Is this possible? Since the computer is dead and gone, it won't hurt to experiment. Anyone have any links or guides to this?
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Apr 13, 2010
I've never owned an imac since I don't care for the AIO concept due to the fact that when your computer becomes obsolete, you lose the monitor as well, without any good reason. I really need a new computer, and as usual I'm thinking about the mini. The problem is that they are really slow and I need the hardware of the imac. I figured that buying an AIO, isn't that bad if you can still use the monitor even when the computer's hardware is obsolete. I've summed it up to a couple of questions:
1. Can you use the imac as a monitor for another computer without turning the enitre hardware on? Perhaps you can easily mod it, so that the monitor is the only thing working.
2. As a follow-up question, if something goes wrong with the imac, that isn't related to the monitor directly (i.e cpu, ram, hdd, etc..), could you still use it as a monitor for another computer?
If the answers to those questions are positive, I'll probably get a 27" imac.
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Oct 16, 2008
I picked up a new MacBook yesterday and I noticed a weird issue when coming out of "monitor sleep" mode, not regular sleep mode.
When I move the mouse, the external monitor shows what you see in the picture, kinda like a TV with no signal. The MacBook screen works fine so what I just do is unplug and re-plug in the DVI plug and everything is good again.
My 24 inch Dell monitor worked fine with my M1330 and other computers so I know it's not that. Does anyone have the same issue or maybe give me some light on this?
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Apr 28, 2012
I've been using Pc's for the past 30 odd years so am totally new to Mac. I'm doing my best to adapt to this new different OS and so far have found some things more user friendly but others ? I've more or less given up on those as Mac doesn't seem to do those things. These are probably Windows based and I'm assuming Mac has its own alternatives that I haven't discovered yet. Anyway, my immediate problem is this goddamned frustrating situation when I try to re-activate the comp' after waking it from 'sleep'. Sometimes its fine but others, it comes back on but freezes and the only option I have is to turn it off at the switch and do a re-boot!
Info:
iMac (21.5-inch Mid 2011)
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Jul 8, 2009
i have 2 LCD's hooked to the new Mini as such:
1 going mini display port to DVI adapter to DVI on 19" Monitor (standard monitor)
1 going mini DVI to DVI adapter to a DVI to HDMI on 52" LCD (Samsung TV)
i just sold me iMac and switched to the Mini not only to be able to hide the Mini which i couldn't do with the iMac but also when i watch a movie full screen on the 52 i was never able to turn off the iMac monitor and would have to cover it with a towel so that it was dark in the room except for the 52 showing the movie.
my thought was that with 2 monitors separately hooked up to the Mini that i could solve the turning off the second monitor problem as they would now both have power buttons. besides making it dark in the room i also like to have the monitor off and so that i can have Plex on the 52 always in full screen mode so my wife can just hit "Watch Plex" on the logitech remote and the TV and Stereo switch to the proper inputs and away she goes to watch whatever without having to touch the computer which when both monitors are on works perfectly.
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Jun 26, 2012
I'm working on a Mac Dual g4 desktop computer at work, and it won't turn on. We've always had troubles with a sticky button, but it usually comes on after a couple tries. Just before I had this problem, we had tried to switch to an older startup, which gave us trouble, so we went to restart the computer and that didn't work either. Have been reading through discussion posts etc to troubleshoot, tried switching out the power cord and PMU restart, no luck. Unfortunately don't have a keyboard with a power button... What now?
Info:
PowerMac, Mac OS X (10.4.11)
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Aug 8, 2010
I bought a new unibody Macbook around 4-5 months ago and I've generally been very impressed with it. It's my first Mac and considering all the problems I'd had before with Windows PC's, it's quite a relief.Anyway, here's the issue. When hooked up to my 24 inch Dell monitor there are numerous problems. Originally it just started with the screen intermittently turning itself off and on, and there being a sleep/wake issue. I did some research then and discovered that this was by no means a problem confined to me. Knowing this I was prepared to wait until Apple fixed it with a firmware update or something, as the problem was annoying but not devastating.
However since then the problem has got significantly worse. Not only are the screen flickering, sleep wake/issues occuring much more frequently, but there are other problems. For instance, the menu bar and the dock sometimes fail to show, and I've been having a very weird problem with the Logitech mouse I use. Even though I can move the cursor generally I can't click, and when I can, only the right mouse button works.The same is true with the trackpad, so it's not a problem with the mouse.
When these problems occur the system generally seems to be very slow. I've checked the 'activity monitor' and the use of 'system memory' seems to be very high. For instance, at the moment (I'm using my Macbook by itself) I'm running a few applications (Mail, iCal etc.) and I've got 1.09 gb of free memory. Last night I was running exactly the same applications and I must have had less than 0.4 gb of free memory. The pageout numbers were fairly high as well.
It's strange because when disconnected from the external monitor the Macbook seems to work seamlessly. I just don't understand how some of the problems I've experienced (such as the mouse issue) can arise from problems relating to the external monitor setup. What do you think? Should I be worried that these issues are perhaps indicative of a greater problem? Either way, the problems are becoming hard to deal with. Very disappointing.
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Nov 22, 2007
I have a G5 Quad with an Ati x1900 graphics card running into a 52" Samsung LCD. This was working fine through a dvi-vga adaptor until I switched the monitor resolution from 1920X1080 to 1360X768 which is not supported by the monitor .....blank screen. I plugged another 19" monitor into the other output on the card and both work fine but as soon as I remove the 19" the 52" reverts back to the unsupported mode. I have reset the pram and tried booting in safe mode but that did not help me. From bootup the 52" works fine until just before the login screen, then it switches resolution......blank screen. Would anyone know where these settings would be housed in OS 10.5.1 so I can modify (delete) them?
Information:
G5 Quad
Mac OS X (10.5.1)
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Oct 18, 2006
dont know if this is the right thread but, i picked up a Performa 5200CD, from the dump, and its in perfect condition, but when you go to turn the power on, it does nothing, could this have a dead power suply, broken switch?
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Mar 27, 2012
I still use this old PowerMac G4 (hopefully Apple builds a new MacPro soon!) and when not using it, it is in sleep mode.Unfortunately my cats like to touch the keyboard, thus waking up my Mac.Is it possible to wake the mac only by pressing the power button?
Info:
Dual 1 GHz PowerPC G4, Mac OS X (10.5.8),
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Dec 2, 2007
my computer doesn't turn off its monitor any more. i check the energy saver preferences, and its the same that i've had them before. the screen doesn't even dim anymore.
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Oct 30, 2010
Maybe this is a dumb question, but it seems on my system if the screensaver runs then the monitor sleeps, the screensaver is still running when i go to wake the monitor. does that mean its been running the whole time wasting cpu cycles and drawing more power than is necessary? you'd think it would stop.
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Jan 5, 2010
have a (late 2008) unibody Macbook Pro connected to an external monitor via mini-displayport to HDMI. The MBP is closed and the external monitor is my only display. I have a USB hub connected to the MBP which is connected to a mouse, keyboard, external HDD, etc.My problem is, the computer won't go to sleep unless I manually select the option from the menu. In the Energy Saver settings, the monitor and computer are both set to go to sleep at 15 and 20 minutes, respectively, and the monitor goes to sleep just fine. The computer never does, as indicated by the solid white indicator light on the front of the MBP and the fact that it stays warm after not being used for hours.
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Apr 22, 2012
I was wondering if there was anyway that I could get my Dell E173FP monitor to sleep when I close the lid to my macbook pro. I do not have it on mirroring mode. When I close the lid to my laptop it will just switch my desktop to the monitor instead of the monitor going to sleep with my macbook. When I press the power button and click sleep or go to the apple menu and click sleep it will work though. This really irritates me and I would like It to sleep when I close the lid instead of having to do more.
Info:
MacBook Pro, Mac OS X (10.7.3)
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Dec 6, 2014
I installed Yosemite 10.10.1 on my iMac and my monitor keeps going to sleep while I am using it. I need to push the power button to turn it back on. And sometimes I have to hold the power button down to restart it and reboot the machine.
Info:
iMac, OS X Yosemite (10.10.1), 27-inch, Mid 2011
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Feb 22, 2008
Here's a weird problem I just got on a new (refurb) MBP.
Sometimes (not always) when I comeback to my MacBook after it's gone to screensaver then display sleep (though not full system sleep) the cursor is invisible upon wake.
I know the cursor is still there, but it just can't be seen on screen. If I go down to one of my hot corners, the associated action still happens (in my case sleep the display / activate screensaver -how ironic ), and if I roll over the dock I can bring it up and magnify the icons as I roll over them.... all with no visible cursor whatsoever.
In fact, I only get a cursor once I click on an app and either launch it or bring it up from being minimized / hidden.
This has never happened on any machine I've had before, but by all indications it's a software problem, nothing to do with the hardware.
It's a new 15" MBP 2.2 Ghz, 4GB Ram running Leopard 10.5.2 with all updates (even the recent keyboard update).
A search on this brought up someone else on another board with the same problem, but then the issue got clouded with discussion of dual-monitors or external displays (neither of which I use).
I'm going to go fix permissions right now, but I was hoping somebody here could ID this and help me figure it out.
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Apr 15, 2009
my monitor turns off but my computer won't go into sleep mode, both are set to turn off at exactly 45 minutes of inactivity.
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Apr 15, 2009
my monitor turn's off but the computer never goes into sleep mode. I've got both my monitor and computer set to turn off at 45 mintues of inactivity. I tried reseting the pram with no success. I deleted the com.apple.PowerManagement.plist file. but it still doesn't turn off, only the monitor. I've set it to 1 minute but only the monitor will turn off. Manually putting the computer to sleep work's fine.
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May 5, 2010
Is there a function to enable the external monitor to work with the mbp lid closed? Any way around this without third party software??? I enabled mirroring but when I close the lid, the mbp goes to sleep.
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