Monitor flickering requires power unplug/replug

I'm using an HP w2558hc monitor on a T60 running Windows XP Professional with an ATI Mobility Radeon X1400 display adapter. Everytime I reboot the laptop there's a rapid left/right jiggling of the display, which is noticeable enough but more so when you look toward the edges of the screen. By trial and error I found if I unplug the monitor from the wall power outlet, wait 10 seconds and plug it back in the problem goes away until the next reboot.
HP tells me it must be the laptop's display adapter because they had me plug the monitor into an old Dell 2100 tower I had hanging around (Windows 2000 on an Intel 810 graphics card) and it did not exhibit the problem (albeit that 10 yo PC only went to 1600 x 1200). Also because the flickering doesn't start until the Win logon prompt appears, which is when they say the graphics adapter kicks in. And theres no flicker if I turn the monitor on without connecting it to the laptop to display the "No Video Input" message.
I have tried the following remedies without success.
- Updated the T60 graphics driver to the most recent one Windows Update could find (version 8.362.0.0, 4/5/2007)
- Uninstalled the HP driver and went plug and play
I posted this if case anyone has a similar problem, at least I found a workaround. The unplug option is only slightly annoying, although if the adapter is truly at fault I can't see why unplugging the power cord stops the shaking. (Simpy cycling the monitor off and on with the power switch won't fix it. I power off, then unplug.)
If anyone has any other ideas I might try I'd be glad to hear them. Lenovo hardware support suggested I try installing the Presentation Director, has anyone fixed any similar problems that way?

My problem is that unplugging the monitor does not help.
By changing the resolution a few times I can fix the screen flicker problem but then get a single verticle line of horizontal lines on the right side of my monitor that increase in speed as time goes by.
It is the lesser of two evils so I just use 5/6 of my monitor and cannot see the lines against a black background.

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Monitor flickers with green tint

Monitor is about 3 years old. Often times, the screen takes on a blue-green tint. Sometimes just flashes on, then back to normal a few times. Sometimes tint stays for a minute or two. All images are visable, but everything has a strange greenish cast to it.

Hello @snelson600,
I have read your post on how your desktop's monitor flickers with a green tint, and I would be happy to help you!
I am providing you with some steps you can try below:
Step 1. Unplug the power cord from the back of the monitor and the wall
Step 2. Hold the power button down for at least one minute
Step 3. Plug the power cord back into the monitor and then into the wall outlet (not a power bar or surge protector)
Step 4. Press the Menu button on the monitor
Step 5. Navigate to the Factory Reset option and select it
Step 6. Try a different cable connecting your monitor to your computer
If the above steps did not resolve your issue you can try the monitor on a computer or other device to see if the issue persists. Please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region.
http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html
Thank you for posting on the HP Forums. Have a great day!
MechPilot
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the right to say “Thanks” for helping!

Monitor enters suddenly power save mode locks up machine

monitor enters suddenly power save mode locks up machine
I have all power saving settings at never in windows
I had 4x in 9 months bizarre crash suddenly my monitor turned black then went into energy saving mode then I was unable to reset using button I had to shut down by turning off power supply
HELP
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seasonic s series 520w psu
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Well, a few things could cause such a problem and it could be a true pain in the butt to narrow down.
How old is the computer? 9months
When this happens, is it when you are playing a game or other high load process?first times on web last 2 idle
If so are you keeping track of temperatures via core temp or some other program?using speccy and bios
Anything in the event log? nothing unfortunately
Any Graphical distortion other than the screen turning black or do you ever see a window popping up telling you a driver re-set was required. some window screen almost overlay in photshop 7 intermittent
Have you run memtest to check the memory? some portable apps and benchmarking apps
If its not a new comp, have you cleaned the comp recently and verifed all the fans are working.
Have you done an error check on the HDD? fans are ok
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2311X Monitor Won't Power Up

My HP 2311X monitor will not stay powered up; It is not going to sleep (orange light), it is turning off. I've listed my observations and what I've tried below.
- Blue power button - When first plugged in, the power light on the monitor glows briefly, then slowly gets dimmer & dimmer until it is out. If I unplug, wait 30 seconds and repeat, it does the same thing.
-Green power light on rear of monitor next to power plug is lit & says lit.
-Green power light on the external power supply is lit & stays lit.
- I have tested the external power supply with a voltmeter and it is supplying the listed 12 volts (12.3 to be exact). I have no way to test the supply under load.
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- I have tried the "hard reset" by disconnecting power & video cables and holding the power button in for 60 seconds as suggested in other posts.
- The PC works fine with another monitor.
- Please don't say the R word (replace) - monitor is only 15 months old. I refuse to see a nice piece of hardware fade away so quickly!
Thanks in advance for any help you can offer.

Hello phonedoc1,
If you don't want to replace the product or I assume take it to get repaired then you'll have to do the work yourself.
If you open the monitor up you'll notice it's powered by a circuit board that looks similar to one that is in a PC. You should check the board for any lose connections, bulging capacitors, and check the soldered connections to see they are still working. It appears that the monitor is getting enough power to the monitor, but once it reaches the monitor it's not "distributing" the power. It sounds like a soldered connection within the monitor has come loose.
This thread is similar to what you are experiencing. Maybe the information would be helpful to you.
http://goo.gl/kjkKw
If I have helped you in any way click the Kudos button to say Thanks.
The community works together, click Accept as Solution on the post that solves your issue for other members of the community to benefit from the solution.
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How can i use my smart TV as a second monitor for my Power mac (2010) via HDMI cable? i've made the connection but no options show in system prefs display.

How can i use my smart TV as a second monitor for my Power mac (2010) via HDMI cable? i've made the connection but no options show in system prefs display.
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The Mac uses a highly-parameterized universal Driver for every display. The parameters are set at certain times when a query is sent to your display. The display MUST answer with its name and capabilities, or the screen stays dark. A TV set that is off or "not paying attention" because it is set to a different port when the query occurs will rarely answer, and so will often remain dark.
You can use tools in the System Report to see whether your display has been detected at all. If it has, the report will look something like this, but its name will appear:
The times when the query is sent are:
• at Startup
• at wake from sleep
• when the Mac-end of the cable is inserted
• when using the Option ( Detect Displays ) button in displays preferences

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I just purchased an LG W2252TQ LCD monitor and I am using a mini-dvi to dvi adapter and a DVI cable to connect to the monitor. My macbook detects the monitor, but when I connect it, the monitor enters "Digital Power Saving Mode" and is asleep. No picture whatsoever. - I saw another post who was having similar trouble and he solved it by using a mini-dvi to vga adapter, but I'd prefer to use a digital connection. Any help?

kiamatthews: I bought the same LG monitor for my daughter's MacBook and I couldn't get it to work. Then I read your post and resigned myself to buying the mini-dvi to VGA adapter. Luckily, I stubbornly tried one more time and after a bit of fiddling I finally succeeded in getting it to work. (My daughter has the same setup as you i.e. LG W2252TQ LCD monitor connnected to a MacBook using the mini-dvi to dvi adapter and a dvi cable connected to the monitor.) I'm a relative newbie to Macs, so I'm not sure I've remembered all the steps, but here goes.
When I first connected them, the LG showed the background from the MacBook, but nothing else (no icons, no windows, etc). Eventually I brought up system preferences - displays, and some sort of monitor resolution window appeared on the LG, but it was different than what was on the MacBook. The "displays" window on the MacBook did indicate both the MacBook monitor and the LG, which it showed as 2252TQ or something like that. Anyway, I checked a box labelled "Show displays in menu bar", which then put a monitor icon on the menu bar. When I clicked on that, there was a line allowing me to select "mirror" which I did. Immediately, what was on the MacBook display appeared on the LG. After I picked myself up off the floor, I was able to change the resolution for the LG to its maximum setting and after about 2 seconds of blank screens, it reappeared with everything working as it should.
I hope that the above description is sufficient to get yours to work as well.

Can i use my 2010 20" imac as an external monitor for my Power mac

can i use my 2010 20" imac as an external monitor for my Power mac? Sounded like a 'no' a couple years back, but not sure if there are any new adapters out there.

https://discussions.apple.com/thread/4082303?start=0&tstart=0

HDMI Monitor flickers

I have an VGA Monitor connected via adaptor to the HDMI port as a second Monitor to my Thunderbolt display. The VGA Monitor flickers and it was suggested to upgrade the firmware. But the system tells me the firmware is not for my system (Mac mini Model A1347 from autumn 2011).
How can I fix this problem?

What monitor(s)...?
If one has (Digital) DVI input, then you should use it on the HDMI port with the Apple Supplied HDMI to DVI adapter and a good DVI cable.
If both have (Digital) DVI input, then it would be best if the second one was also on a Thunderbolt/MiniDisplay Port to DVI adapter instead of analog VGA.

Monitor flickers

Greetings,
I have a new mac mini with 16 mb memory, 2 T hd and acer 24" monitor connected to the DVI to usb connection. Latley and from some unknow reason , the monitor flickers every once and a while.
Is there an issue with the mac mini? Or the video card in the mac mini? Or is there some issue with the monitor compatibility?
Cheers,
justin
[email protected]

Hi, the new Mini's HD4000 graphics sure has a lot if flickering problems & mixed results with different Monitors & connection types.
https://discussions.apple.com/message/19284543#19284543
https://discussions.apple.com/message/21594022#21594022

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My computer monitor flickers if we tap it on the side it stops, then starts up again, sometimes we go hours and not problem, other times it drives us nuts, We have a Gateway computer, it works fine except for this monitor problem, it was purchased in 2004, it has a "nvidia GE Force 2 MX 400 video card, I checked with Nvidia and tried downloading the latest driver but then the computer wouldn't start so I had to go back to a previous date so that the computer would start, do I need to look at getting a new monitor? IF so what sort of monitor would be best, someone said the resolution would not be good on a wide screen, but the only ones I have found at Best Buy and other places are the wide screens. I hope someone can suggest a solution so we can enjoy this second computer and stop hitting the monitor
thanks Lea

I'm having a similar flickering problem with the LG widescreen LCD monitor which came with our first Vista computer (an HP desktop, purchased about a year after Vista came out). It mostly only seems to flicker when I'm playing games with animations in the graphics (such as Civilization IV or Astral Masters). The most common suggestion I found (f.ex. in the HP Help & Support area preinstalled on my computer) was to increase the refresh rate. Doing this has not eliminated the flickering, but has lessened the severity somewhat (it just flickers as vertical lines or bars at 75hz; at the default of 60hz it flickered as both vertical and horizontal lines). I ran HP's Monitor Diagnostic Tool (which included a simple wireframe animation), and it didn't turn up any problems.
Hockeycanuckjc's suggestions sound pretty practical, and I'll try them. I've also seen on another thread on this board that Nvidia graphics cards (my HP computer has an Nvidia Geforce 8500GT) can have issues with the drivers, especially after Windows Vista has just automatically downloaded its latest updates -- so it's possible that the graphics card driver could be getting cranky (though I haven't yet confirmed or denied that theory in regard to my own computer).
I think my HP computer is still covered under its Extended Service Plan (though I'd have to check the sales receipt to be sure), but I want to do as much troubleshooting as I can before calling Best Buy tech support, so I'll be able to explain my problem more knowledgeably, and hopefully not have to jump through as many hoops as usual before they authorize an in-home service call.

Lenovo Monitor Flickers constantly

Hi All,
I have a Lenovo L197 Wide connected to a Server 2003 box (also lenovo) and the monitor flickers constantly. The refresh rate is set to default and I can't change it to see if it has any effect.
Anyone any ideas?
Cheers
Andy.

welcome to the forum.
are you using fluorescent lights nearby? if so, does the monitor still flicker with the light(s) turned off?
have you tested the monitor on another computer, with a different cable, with a different video card, or a different monitor altogether with the server 2003 machine to eliminate any variables?
if the above checks out then your L197 either has a defective inverter or its backlight is failing. warranty is your best option in this case.
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Monitor flickering can't fix it no matter what.

All in one monitor flickers continually. How can I fix this, if possible? Please help

Hi riblngb, I did some research for you and I have found two very useful documents. Please click on the following link and go threw the instructions as listed. If the first link does not prove to be successful, please move on to the second and calibrate your screen. http://goo.gl/UaJzf0
calibration link : http://goo.gl/utgtqY
If you need further assistance, please feel free to respond.
Thank you
Waterboy71
Click the “Kudos Thumbs Up" at the bottom of this post to say “Thanks” for helping!
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
W a t e r b o y 71
I work on behalf of HP

Monitors flickering badly after Yosemite Install

Monitor flickering badly after Yosemite installed
I will be awaiting upDated drivers in a release soon.
I notice is very badly when I connect my iphone to ITunes screen
goes crazy flicker. . . . Anyone else having this issue ?

Try these in order testing your system after each to see if it's back to normal:
1. a. Resetting your Mac's PRAM and NVRAM
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2. Restart the computer in Safe Mode, then restart again, normally. If this doesn't help, then:
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     COMMAND and R keys until the Utilities menu screen appears. Alternatively, restart the
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3. Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the Utilities menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
4. Reinstall Yosemite: Reboot from the Recovery HD. Select Reinstall OS X from the Utilities menu, and click on the Continue button.
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I'd suggest going back over the process of disassembly and reassembly, to make sure that everything was returned to its original state. Check the cabling that you detached and reconnected, to be certain that every connection is snug. If you haven't checked it out, this web site is a useful reference for upgrading the tray-loading iMacs. It seems unlikely, but the video flicker may be coincidental and unrelated to the hardware upgrades. Hopefully, you'll find the source of the problem and rule out a secondary hardware issue.

I have a power mac G5 with a 23'' cinema hd monitor i can power up the system but no picture, i pluged it into a laptop and monitor comes on i need help

i have a power mac g5 with a 23'' cinema hd monitor, i can power up the system from monitor power button but the monitor doesnt come on, i pluged into a laptop and it works whats wrong i need help

Hi,
Safe Boot from the HD, (holding Shift key down at bootup), does anything show?
Try re-seating the Graphic Card in the G5.

Monitor flickering requires power unplug/rep​lug

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