20' monitor goes dark with lines

I bought the monitor with the very first G5 2G dual tower. I have had the half dark screen and it was fixed. I got it back after that and it had another problem, it went all dark with horizontal lines, then it goes to black on the edges and vertical lines in a block in the center. Any ideas? When I sent it in for this last time, it was sent back and they said they could not get it to do that......ok it did seem fine for some time....but now it is doing it again. I have unplugged it and will leave it unplugged for a couple of days and try it one more time before I call and see (no under warranty now, was the first time it exhibited this problem) if it comes back to me again?

I have my monitor back and it has the same problem that it first had last summer. I don't know why the technician would have said this monitor was repaired when half the screen is darker than the other and the error light is doing the short-short-long, indicating the inherent problem that so many have encountered.
I am on the phone right now to try and get this resolved. This monitor has been sent in a total of 4 times now in the last 6 months.

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I opened my iPod Touch up to fix my home button. When i closed it back up it had a white screen. I tried pressing lock and home button for 10 seconds and it worked but while i'm using it it goes white with lines on the screen. Help please

I opened my iPod Touch up to fix my home button. When i closed it back up it had a white screen. I tried pressing lock and home button for 10 seconds and it worked but while i'm using it it goes white with lines on the screen. Help please. This has been happening for a while and i've tried everything but it doesn't work.

Try:
fix for Home button
iPhone Home Button Not Working or Unresponsive? Try This Fix
- If you have iOS 5 and later you can turn on Assistive Touch it add the Home and other buttons to the iPods screen. Settings>General>Accessibility>Assistive Touch
- If not under warranty Apple will exchange your iPod for a refurbished one for:
Apple - Support - iPod - Repair pricing
You can do it an an Apple store by:
Apple Retail Store - Genius Bar
or sent it in to Apple. See:
Apple - Support - iPod - Service FAQ
- There are third-party places like the following that will repair the Home button. Google for more.
iPhone Repair, Service & Parts: iPod Touch, iPad, MacBook Pro Screens

Monitor goes dark on 2008 Mac Pro Tower with ATI Radeon 5870 Card

I have a 2008 Quad Core Intel Mac Pro Tower running 10.6.8.
The original graphics card had trouble with HD movies of any kind and eventually my screen would sometimes not turn on (stayed black) when the computer was turned on.
So I replaced the graphics card for both reasons to a ATI Radeon 5870 PCIe with a GB rather than the 256 that came with the machine.
The problem was solved. I got a new monitor, one that is like the latest ones and all has been working great for a few years.
Then recently the monitor started going dark while the computer was on. (no screen saver or anything like that, I can be in the middle of work on a photo or video).
Trouble shooting I have tried.
A forum said drag the mouse to the hot corner for a while and then back. Well, I tried, assuming I was dragging the mouse to the corner. Didn't work.
I tried using the keyboard commands to shut down the computer. It didn't work.
I tried plugging the keyboard into other USB ports and tried to shut down the computer. No luck.
The only thing that works is shutting down the computer with the power button.
on start up the monitor is back on.
Sometimes it works for days like this, other times the monitor stays on only minutes.
The monitor is fine. Tested my old monitor on the computer to make sure it wasn't my new monitor.
So the questions are:
Can it be over heating?
is it worn out, toast, done and or dead and dieing?
Should I buy a replacement graphics card VS finally upgrading and getting a new computer (lots of $$$$ but then I do work in HD Video so....)
any help is appreciated
thanks
john

Replacing FBDIMMs would be today inexpensive and worth doing.
No one knows if heat is an issue without your using thermal sensor monitor. Probably want to up the default fan speeds while at it.
And because you don't have Lion+ then even more reason to setup a small maintenace volume on another drive with OS X basic system for repairs. In fact you should always have a bootable backup or two you can rely on.
Restarting may work, or it may be you have now new issue with corrupt fies or directory that a safe boot even is no guarantee of fixing.
When in doubt, try a clean new OS install on another drive.
And FBDIMMs: $25 for a 2x2GB set on Amazon.com
You want to get the most out of what you have, a small investment in RAM, maybe recycle those drives for 2-4TB units. And an SSD will have system responding better and perform better.
My guess, the 5870 wasn't needed and was overkill and a 5770 for almost half would have been more than adequate.

Monitor goes dark during gray screen after power outtage

The mini was plugged into a surge protector, but after the power went out, it doesn't get past the gray screen with the swirling disk, then goes black with an out of range message. I took it to the Mac genius today, he diagnosed it with an external drive, did repairs and got it to boot on his monitor. I have been reading the discussion and reset PRAM, unplugged everything, restarted holding the power button and plug at same time, done option start with CD, done a hardware check. Used Disk Utility to do an expended check, repaired everything. The monitor works fine with my G3. Still no screen. Any other ideas?
Mac Mini 1.25 GHZ, View Sonic Va2012 widescreen display. System 10.3.7 (reinstalled).

Well if it worked before and doesn't now, I would try trashing the preference files associated with the display. Use Spotlight and search on the term "windowserver". You should find at least two files with windowserver in the name that end with .plist. One will be com.apple.windowserver.plist and possibly com.apple.widowserver.xxxxxxx.plist where xxxxxxx will be a string of digits and numbers. Throw all such files in the trash, empty the trash and then restart. This should give you a fresh start with the mini and the Viewsonic.

Screen goes dark with the slightest touch

Okay, so my screen went dead on my ibookG4, but I was able to physically manipulate the display and it would come back to life for a minute or two.
So I took it to the repair shop- 1st they replaced the inverter board with no success. 2nd, they charged me $400-plus labor for a new LCD.
So I go to pick up my machine at the shop, and the repair guy brings it out and fires it up, while I'm talking to him, the screen just goes dark. I said to the guy that something is still wrong, but he assures me that the computer has just went to sleep- B.S.. I tap on the keys trying to wake it up, but I have no luck... The repair guy taps on the power button, and it miraculously comes to life.
Cool... or so i thought.
So I take it home and open the lid. I go to adjust the screen angle and as soon as I touch the display it goes dark.
So now if I touch the display, or breathe a little bit too hard in the direction of the computer, the screen goes black.
I payed over $600 to fix this problem, and I think the repair-shop charged me for parts that didn't need to be replaced. Any Idea what could be causing this problem?

Okay, admittedly I don't have your unit in my hands. But, the instant, long distance, I've never actually seen your iBook diagnosis is that the issue is caused by a damaged inverter and reed switch cable assembly, pinched as it passes through the hinge from the lower case to the display, and therefore intermittently open.
It's actually a very common problem. And, if that is the case, it's pathetic that a certified technician missed it. It's also possible that it's a damaged display cable, but that is far less likely.
Although a limited number of early iBook G4 models—in rare circumstances—may have been affected by the separation of a ball-grid array video chip from the logic board, that issue is limited almost completely to iBook G3 models.
iBook liquid crystal displays have backlights built into into them, and backlights display binary behavior: they either work or they don't work. They do not intermittently work. That's a primary clue that it is the interruption in current to the backlight because of an open cable, combined with movement of the display and therefore the hinge, that suggest that the cable is the culprit.
Apple authorized service operations must meet technician certification and service excellence metrics to remain so, and to be reimbursed in warranty service events. They pay a serious penalty for not getting repairs right the first time, even under circumstances where additional issues are masked by a single defective part and where the subsequent issues aren't discovered until the first part is replaced.
If you do not believe that you have been treated appropriately or fairly, Apple has provisions to address your concerns. Your initial move should be to return to the same service provider, ask that the problem be properly resolved, and that you not be charged for the inverter and display assembly that were not required to properly effect the repair. If you cannot negotiate that outcome, contact me by electronic mail and I will outline how you can take additional steps to resolve the matter. The first step, though, is to return to that dealer, who should take the necessary steps to complete the repair properly, reimburse you for the parts not required, and likely refund a portion of the labor fees charged so far. That advice is based solely upon your representation of what has happened so far, but it strikes me as a reasonable one.

My monitor goes dark 27 inch 3.1 iMac.

Got this wonderful new iMac for Christmas except the display goes dark now about every 15 minutes. I tried a software fix -- did not work. Is there anything else or should I just pack it up and send it back?

Thanks for the input. I was not specific enough. This was happening while the computer was in use, so the sleep setting should not be an issue. And yes, I am aware of Apple Care -- my first Mac was the 512K Enhanced -- but I was hoping to resolve the situation with getting Apple Care involved. I say was, because for some reason, the problem has stopped. I have had 24 hours of nonoccurrence, including a couple of sleep periods. I had downloaded a software patch from Apple, but that seemed not to help. Had 3 or 4 occurences after that. However, the malfunction has stopped for whatever reason.

Screen goes dark with searching in bottom corner

I have 4 set top boxes in my house and recently have been having issues with the one in my bedrooms. The screen goes dark and in the bottom right hand corner it says searching. I have unplugged the router, unplugged all the tvs and replugged them in and after a few hours it starts doing it again. Sometimes it will be dark for up to 5 minutes and then it will start playing again.

This sounds like the TV is searching for a video signal. It is like if you were watching a DVD and somebody unplugged the video cables from the back of the TV. It doesn't mean the verizon settop box has turned off or lost connection with Verizon service, but rather the settop box and the TV have lost connection with each other. This is just how it sounds to me from your description. try swapping out the cabling that connects the STB to the TV.

G3 freezes and monitor goes dark

I have been experiencing the following scenario with increasing frequency (at least twice yesterday, and four times today)--
The monitor will suddenly go dark, as though the system were going to sleep--except that no keyboard or mouse action will wake it up again. Sometimes it will recognize the power key followed by return or enter, and shut down. Most of the time, though, it will only recognize CmdCtrlpower key to reboot.
After forcing a reboot, the video comes back. However, I have also been noticing lately that the "Waiting for local disks" phase of startup has been taking significantly longer than before (usually flashes right by, but now stays there for probably 30 seconds or more).
Any ideas as to what might be causing these video blackouts? Might the elongated "Waiting for local disks" be a related symptom?
Thanks,
Pete

Thanks Frank,
I actually came across that same post not long after I posted this question. Guess I hadn't used the right keywords in my search to find it (or get it to stand out among all the false hits). Anyway, I followed the referenced fix procedure, and things seem to be working now. Even the prolonged "Waiting for local disks" phase has gone away since applying the fix.
Thanks again,
Pete

2010 mac mini - monitor goes dark every few sec's problems since Mavericks Install

My Wife updated her 2010 Mac mini from Mountain Lion to Mavericks and ever since, after start, up the display intermittently flashes a dark screen, every few seconds. (within 3-10 seconds or so, there will be another period of dark screen, that may last aprox. 1- 6 seconds. The timing of this changes constantly. The finder and all apps I have seen are affected in the same way. it seems to be an all-the-time problem
the monitor is an OptiQuest Q9, and the system connects via an Apple mini display to VGA adapter (supplied with the mac mini) , then a vga cord into the monitor, which has a native resolution of 1280 x 1024.
The only workaround we have found is to boot the mac with the monitor cable disconnected, then reconnect the monitor cable after boot up is complete. In that case, the monitor does not flash, until the mac is shutdown or restarted again.
Steps I have already tried:
Zapped P-Ram
Reset SMC (shutdown, waited with power unplugged, then reattached power and rebootted
Repaired disk permissions,
repaired disk
re-download and reinstalled mavericks fresh.
changed display prefs for resolution, detected displays, etc.
Changed background picture.
I don't know where to go with this anymore, and it has already taken a lot of time.
Who's got a Fix?    And if there is no fix, how do I revert from Mavericks to Mountain Lion?   The mac mini came with Snow Leopoard.

Problem Fixed!
I found another page that referred to resetting the PMU (http://support.apple.com/kb/ht2183) , which controls things like wake and sleep:
"If the settings in the PMU become corrupted, it can result in operational anomalies such as your computer not turning on, not displaying video, or not waking from sleep, among other things. In these situations, you may need to reset your computer's PMU."
Anyway, it is pracitcally the same proceedure as resetting the SMC (SMC reset= Shut down, disconnect power cord for 10 seconds, reconnect power cord, wait 5 more seconds, turn computer back on)
but it is slightly different:   (PMU REST = Shut computer down, disconnect power cord for 10+ seconds, reconnect power cord WHILE SIMULTANEOOUSLY PRESSING POWER BUTTON, let off power button for a few seconds, then press power button again to restart the mac mini.)
After this the display problem was fixed, but the fan ran at high speed, so I did one more SMC reset as described above. Now everything is in order.   This also fixed the issue of the mac mini not waking from sleep unless the power/sleep button on the mini was pressed (it wasn't responding to the keyboard to awaken). Now it's all good.
Hope this helps somebody else...

Monitors going dark, then back on

I have two Dell 24" monitors connected to my Mini. Occasionally both monitors (sometimes just one) will go dark, remain dark for 3-4 seconds, then come back on with no noticeable damage done.
It happens maybe once a month on average, but has happened twice this morning.
Is something about to crash and burn? What would cause the monitors to go dark, then come back on?
Thanks for any ideas.

Mini blanking, so many...
https://discussions.apple.com/search.jspa?resultTypes=&dateRange=all&peopleEnabl ed=true&q=monitor+blanking+mac+mini&containerType=&container=&containerName=&use rname=&rankBy=date&numResults=15
Oh, is this perchance after sleeping?

IMac monitor goes dark; 2nd monitor ok

I have a dual monitor setup on my iMac (2009) running Snow Leopard (10.6.8). The iMac monitor had been working great, but now it goes to a black screen. I am able to access it briefly (for about a second) by lightly pressing the power button on the back. The iMac monitor flashes on briefly when I do this and I'm able to quickly click on user. I used this same method to open Settings and drag it over to the 2nd monitor to change the display setting to Mirror mode, so I'd have access to the dock on the 2nd monitor (Dell 2007WFP).
I have tried the following so far:
     checked cables
     restarted by powering off, pressing on/off button for 5 seconds, unplugging for 15 seconds.
     booted in Safe Mode
     reset PRAM (I believe this was reset, but I don't know for sure because I couldn't see anything on the monitors.)
Other information:
     2.66 GHz Intel Core 2 Duo
     8 GB 1067 MHz DDR3
     NVIDIA GeForce 9400
Thank you in advance for help with this issue!

Replacing FBDIMMs would be today inexpensive and worth doing.
No one knows if heat is an issue without your using thermal sensor monitor. Probably want to up the default fan speeds while at it.
And because you don't have Lion+ then even more reason to setup a small maintenace volume on another drive with OS X basic system for repairs. In fact you should always have a bootable backup or two you can rely on.
Restarting may work, or it may be you have now new issue with corrupt fies or directory that a safe boot even is no guarantee of fixing.
When in doubt, try a clean new OS install on another drive.
And FBDIMMs: $25 for a 2x2GB set on Amazon.com
You want to get the most out of what you have, a small investment in RAM, maybe recycle those drives for 2-4TB units. And an SSD will have system responding better and perform better.
My guess, the 5870 wasn't needed and was overkill and a 5770 for almost half would have been more than adequate.

Toshiba 46G310U turns on for a few seconds the goes black with a horizontal line

I have a Toshiba 46G310U that when it is first plugged up it will come on for a few seconds and show a great beautiful picture, then the screen goes dark with a horizontal line across the screen that eventually fades out too. Turning the TV off and back on does not help, If I leave it unplugged for 5 minutes with the source unplugged also, it will come on when plugged back up for a few minutes at the most then starts the whole turning dark with the horizontal line that fades completely out. I've aready replaced the inverter board, the T-con board, and now I am at a stand still because I can find any help with the problem for starters(Toshiba Tech support was NO help and was unwilling to listen to my problem), second I am thinking possible power supply problem but I am having problems finding the power supply board, the main logic board, and the two small narrow boards that the T-con plugs into above the LCD display. Display has to be good for the picture to be perfect before fading to dark. Back light is also good as I can see it when the display goes dark it still has a glow and with the back of the TV off I can see the actual back light panel shinning. Suggestions? No I won't call tech support back as it was a horrible experience dealing with the rude techs. Thanks in advance.

The tech at Toshiba support was rude and seemed more interested in what was happening in the office then my issue with the TV. I've talked to a local tv service shop and they had no clue about the LCD type of tvs. I just would like to know if it is the main logic/input board or the power supply board. I can find the power board but have had no luck with the main board. Mr.. Moderator if you have any suggestions from Toshiba I would be very appreciative of your help. Thank y

MBP 15 is running and screen goes white with thin vert lines

Running normally and if I adjust the screen angle it goes white with lines. Just started happening. 10.5.8 about 4 years old

Based on your post, that seems the most likely problem but it could be something else. Before any repair is attempted, the problem has to be properly defined. You may try iFixit.com and see if they can advise you, have a replacement part and attempt to fix it yourself. This certainly depends upon all the chips falling into the right place with no guarantees of success. You must also consider the age of the MBP and its worth vs. the cost of the repair.
Ciao.

Toshiba LCD 46G310U display goes dark

I have a Toshiba 46" LCD model: 46G310U that when first plugged up has a perfect picture on all inputs. However after a few seconds to a few minutes the display goes dark with a horizontal line across the screen about half way down. The horizontal line will fade out after 25-30 seconds leaving the screen dark(back lights still works). I have replaced the inverter board, the T-Con Board, replaced most of the larger capacitors on the power board, I have even replaced the cables that connects the T-Con board to the main board. If I unplug the tv and leave it unplugged for several minutes when I turn the tv back on, the picture is back and purfect for the first few seconds or up to a couple of minutes, then the screen goes black again. Please any help would be apprecieated. Thanks.

You may want to find an authorized service provide to repair the TV.
- Peter

Macbook screen/display comes on and then goes dark; external monitor shows the screen in the mirroring mode; What's wrong, please. Thanks.

My Macbook (Black,August 2008...love it!) screen lights up/comes on and then immediately goes dark; the screen shows on an external monitor in mirroring mode. Any thoughts/suggestions. Many thanks.
Model Name:          MacBook
Model Identifier:          MacBook4,1
Processor Name:          Intel Core 2 Duo
Processor Speed:          2.4 GHz
Number Of Processors:          1
Total Number Of Cores:          2
L2 Cache:          3 MB
Memory:          4 GB
Bus Speed:          800 MHz
Boot ROM Version:          MB41.00C1.B00
SMC Version (system):          1.31f1
Sudden Motion Sensor:
State:          Enabled
Chipset Model:          GMA X3100
Type:          GPU
Bus:          Built-In
VRAM (Total):          144 MB
Vendor:          Intel (0x8086)
Device ID:          0x2a02
Revision ID:          0x0003
Displays:
Color LCD:
Resolution:          1280 x 800
Pixel Depth:          32-Bit Color (ARGB8888)
Mirror:          On
Mirror Status:          Hardware Mirror
Online:          Yes
Built-In:          Yes
Philips 191EL:
Resolution:          1366 x 768 @ 60 Hz
Pixel Depth:          32-Bit Color (ARGB8888)
Display Serial Number:          AU11103006796
Main Display:          Yes
Mirror:          On
Mirror Status:          Master Mirror
Online:          Yes
Rotation:          Supported

Hi, firetiger.... i have the EXACT same problem!!! i have the same Macbook aluminum unibody screen also. I have no idea how to fix it. I'm also out of warranty and i've tried everything... resetting the pram, trying to restart in safe mode, trying to boot from a cd... .NOTHING WORKS!!! i can still control brightness itself but ive never tried attaching to an external monitor. I know everything is loaded correctly... i just don't know whats wrong. If you have any ideas.. please let me know. Also, I think apple will fix the macbook pros with a similar issue for free http://support.apple.com/kb/TS2377 but i know this doesnt apply for me. hopefully they work something out because I really love that computer!!!

20' monitor goes dark with lines

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