DVI Flickering Problem

I recently purchased a mini DVI to S-video adapter to use with my macbook so i would be able to display my desktop on the tv. When i hook the adapter up with the macbook open, the adapter works fine, however, when i close the macbook, the desktop on the tv scrolls and turns to black and white. Is there something i should fool around with in system prefs to get this to work??? Thanks in advance for the help.

Hi Jim,
Welcome to the discussions.
Have you tried hooking up one of the Syntax Olevia displays plus the Dell? What happens then?
Cheers!
Karl

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Mini Displayport DVI Adapter Problem

I'm currently having issues with my MacBook Pro's DVI out (via Apple Mini-Displayport Adapter). Whenever my displays go to sleep (which is set after an hour) and wakes up, sometimes the external display (a SyncMaster 220WM) shows "snow" or "static" ... basically what you'd see if a TV station had no reception. If I let it sit for a minute, the second display will return (the MBP's primary display is fine, no errors of any kind). If I power off the Samsung display, the MBP treats the connection as if I pulled the cable out and reverts to a single screen setup. I have been able to reproduce this by using "Hot Corners" to sleep and wake up the displays. I'm using the 9600m GT as the computer is my desktop replacement. I never had this happen to me before with my older MBP with an 8600m GT using the same DVI cable and display. I think it's the mini-displayport adapter. Is this a common issue. Anyone else having these problems.
Thank you!

I have been experiencing the same flickering problem when using the mini Displayport output on the GT120 to drive secondary monitors at my office. Using a Monoprice cable instead of Apple's adapter provides a more stable signal, but we still get intermittent flickering where the screen goes black for a second, then a full image returns. I think this issue is due to massive loss of signal strength via the mini Displayport output on the GT120 card. Hot Plug Detect is also weak which points to low signal strength. This might be fixable by increasing the output voltage of the card slightly to boost the signal strength. Apple really should just issue a firmware/BIOS fix for this problem since the implementation of mini Displayport on these cards seems poorly engineered. Does anyone know how to do this?

Facing "Display Flickering" problem with my 15" macbook pro(A1286)while swapping the desktops and closing the tabs.....need help...reply soon

Suggest Solution for this Display Flickering problem ....

Hi, I read the post about calibration and I probably do that a little too often TBH! As I get so little time out the battery and mainly use my MBP on my lap, usually with the power supply near by, it gets charged to full, run to empty to the point of sleep, or sometimes it even cuts out and then is recharged to full again, so I really think it's new battery time. I've seen non Apple Official ones for between £35 and £65 that have 3 year warranties and state they are around 5200mh but am unsure due to reviews.
Later...
Anyway's I have now ordered a non Apple replacement from Amazon for about £35 and it has several good reviews and 4.5 out of 5 stars so I'll see if it works and report back. If it doesn't I'll send it back and get the Official Apple one.
Message was edited by: Missy Steph

MDIChildren flickering problem while switching between child form with dockstyle.fill and borderstyle.none

I have an mdi applicaton in Visual studio 2010 (.Net framework 4.0). I'm having a flickering problem when user switch between an MDI Child form. I'm declaring the child form then setting the borderstyle.none at design time and dock property to fill
through programming and make them a MDIChildren before I show them so that it takes up the entire space of the MDI Parent window without being maximized (client request).
i don't want to display control box(minimize, maximize,close) of child form in mdi parent form. (client request)
The problem is that when the child form is being displayed it is briefly shown in it's default size with icon and control box before being resized to fill the available area on the MDI Parent form. When a Child Form loads, you can see it in it's original
size (the size from Design-time) then all this flickering while maximizing .
In other words, child form show up in the client area of the MDIForm, not maximized, with a caption, very shortly, before they are finally filling the client area. there is a short flicker when a new form is created and displayed. This process is most noticeable
with a not-so-powerful PC or there are lots of control inside child form.
below is my code to show child form
MyChild1 c1 = new MyChild1();
c1.MdiParent = MdiMainParent;
c1.Dock = DockStyle.Fill;
c1.Show();
how can i solved the problem of flickering issue?
I tried many options which i have described below
1.double buffering.
2.set style property to child form
this.SetStyle(ControlStyles.UserPaint, true);
this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
this.SetStyle(ControlStyles.DoubleBuffer, true);
3. override below method in each child form
protected override CreateParams CreateParams
get
CreateParams cp = base.CreateParams;
cp.ExStyle |= 0x02000000;
return cp;
4. override below method in each child form
const int WM_NCPAINT = 0x85;
const int WM_SIZE = 0x05;
protected override void WndProc(ref Message m)
if (m.Msg == WM_NCPAINT)
if (this.WindowState == FormWindowState.Maximized)
return;
if (m.Msg == WM_SIZE)
if (this.WindowState == FormWindowState.Maximized)
return;
base.WndProc(ref m);
but I didn't see any effects. please someone help me to resolve flickering issue. thanks in advance.

Hi hardikvaishnav,
This is a known issue which has been reported to Microsoft Connect. Unfortunately, this issue will not fix due to stability issues around MDI. For more details, see
https://connect.microsoft.com/VisualStudio/feedback/details/97787/border-of-mdi-child-form-flashes-up-despite-formborderstyle-none.
You might use a user control or panel instead.
Best Regards,
Bob Wu [MSFT]
MSDN Community Support | Feedback to us

ALV flickering problem

Hi,
I have flickering problem with ALV control (cl_gui_alv_grid). My alv grid control is not in edit mode.
I am using ALV grid for event planning with drag drop operations, so there may be 1000+ rows sometimes at grid.
Also I call refresh_table_display with soft_refresh and is_stable='XX.'
(I call cfw=>set_new_ok_code to trigger PBO. refresh_table_display is being called at PBO )
It flickers just a second or two after drop_complete but it is critical for usability.
I think flickering happens because of scrolling, so I used set_scroll_via_id but nothing changed.
Thanks.

Hi Manu,
I tried not to trigger PBO (Called refresh_table_display at PAI, commented set_new_ok_code)
It does not help..
(Same behaviour : se38-> BC_ALV_TEST_GRID_PERFORMANCE.Increase record count to 5000.Run.
Scroll to the bottom of list.)
Thank you..

Flickering problem with Apple TV

I am suddenly having flickering problems after updating Apple TV. The box has worked fine for several months though I did have this same problem when I first got it in February. I have a Panasonic 37' viera. I have unplugged both the TV and the Apple TV box, reset it a number of times. Don't know what to do.

I'm having the same issue, albeit right out of the box. I hooked up my Apple TV according to the instructions, have no other issues with my wifi, and the HDMI and power cables are all securely connected. My TV's also a Samsung, experiecing the same "flickering" of audio. In addition, during set-up, the screen was also flickering to white while inputting my wifi info.
Am hoping swapping it out in store will fix the problem. I was so excited to get my AppleTV in the mail and everything else Apple-to-TV has been working great. (I had my ancient black MacBook -turning 6 in June- hooked up with zero connectivity problems.) Wondering if this will be an ongiong issue? Had decided against AppleCare for such an inexpensive addition to my home, but maybe I should re-think that decision...

Flickering problem with live viewing with IMAQ Image Display

Hi everyone,
I am trying to write a program to do live imaging with Andor camera. I am using some examples from Andor. The images are acquired in sequence and send into IMAQ Image Display and also Intensity Graph. There is minimal flickering issue in the Intensity Graph but there is very bad flickering problem in IMAQ Image Display. Perhaps I misunderstand how to optimize the vision tools. Does anyone know how to overcome this issue? I have attached the code that I am testing. Thanks in advance.
Best regards,
Han Yen
Solved!
Go to Solution.
Attachments:
iXonRTA_live_0.0.1.vi ‏70 KB

You can use Vision Assistant to test our vision functions. Vision Assistant is really meant to prototype - it does not have all teh functionality of Vision Development Module and is not as flexible as we don't allow you access to all the settings for every function.
I recommend starting in Vision Assistant and then porting over to LabVIEW or C (whatever you are most comfortable with)...this is built-in functionality. There is nothing wrong with using Vision Assistant to do live imaging, just that you run into limitations and you will only be able to use this code on computers that have Vision Assistant.
Hope this helps.
--Michelle
Instrument Control R&D
National Instruments
Instrument Control
Machine Vision

Flickering problem on screen - 3000 series N200 laptop

Hello!
I have a 3000 series N200 laptop (0769 type) for 3 years. Approximately 3 months ago, there was a screen problem that the screen had white vertical gridlines. Service replaced the chipset of the graphical card.
Yesterday, a flickering problem has been appeared. I updated bios and display drivers from below link.
http://support.lenovo.com/en_US/downloads/default.page?
Could not get a solve with those updates. Then, I dismounted the front cover of screen. Re-assembled the LVDS FFC cable of the LCD display a couple of times, problem continued. Then, re-assembled the inverter cables. It also did not provide a solution.
>See the problem photo (1.jpg) at below link.
https://docs.google.com/open?id=0BweTh37k3ZRSQWYxRFNIWWpGSFE
Please advise about this matter.
Thanks.

Hello suguz and welcome to community,
As you have already updated the video driver and BIOS then you can check with adjusting the monitor refresh rate to 60Hrz.
Kindly check the same issue in BIOS mode and if issue continues then it might fault with Lcd display.
Best Regards,
Tanuj
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MSI R9 270X Twin Frozr flickering problem

Hey guys. I have a MSI R9 270X Twin Frozr and i'm having the flickering problems, mentioned already here in several topics.
I'm using Windows 7 64 and AMD Catalyst 13.11 Beta9.5 Driver.
The S/N of my card is: 602-V303-03SB1310018161
I really need your help. Thanks in advance

Quote from: flobelix on 26-December-13, 01:54:04
It's totally easy and welll documented. You'll need the win98boot file to point the tool to or it can't create a dos boot stick.
flobelix can u tell me which version is my vbios?
MSI R9 270x Twin (BIOS 015.041) SN: 602-V303-03SB1310017043
I've flashed it already with 303MS.102 and still get Black Screen when installing drivers! Do you guys have any new info about it? I can't do anything with it.

270x hawk ingame flickering problem.

I have an msi 270x hawk LE
S/N:602 - V303 - 04SB1401015663
I am experiencing screen flickering in game on dark surfaces in the form of waves going from top to bottom especially when there are horizontal lines involved. My monitor is connected via vga (the monitor has only vga connectivity) cable using a dvi to vga bridge provided with the card, monitor works fine on my other machine. I tested it with a DVI monitor and there were no problems there.

Quote from: denis01 on 15-May-14, 17:57:28
I have an msi 270x hawk LE
S/N:602 - V303 - 04SB1401015663
I am experiencing screen flickering in game on dark surfaces in the form of waves going from top to bottom especially when there are horizontal lines involved. My monitor is connected via vga (the monitor has only vga connectivity) cable using a dvi to vga bridge provided with the card, monitor works fine on my other machine. I tested it with a DVI monitor and there were no problems there.
in case a vbios file is needed to provide me with a new version = http ://www 33 .zippyshare.com/v/9789275/file.html

With 10.5.7 the MDP-to-DVI-Adapter problems are still alive!!!

I can't believe it. After more than a half year the problems with external displays (that are not Apple Cinema Displays) connected through a Mini DisplayPort-to-DVI-Adapter are still alive.
All that unacceptable screen flickering and wobbling is not fixed!
<ironic>I know we all should buy Cinema Displays...</ironic>
Be ashamed, Apple!

+1 on this issue.
Just tried it here and i still can't connect my MBP 15" U on the Dell 2408WFP via DVI on full resolution (1920x1200 60Hz).
it only works at miserable 800x600 75Hz.
What can we do? Apple should replace this faulty macs for ones that work (even if its the big 17")...

7970 Lightning BE Flickering problem

Hi Guys,
I am one of the many - i think - who has this annoying flickering issue while surfing for example. There are a few threads out there about this issue and it seems that the problem has to do with the 2D clocks and their change. There are some possible fixes but nothing permanent.
Is there anyone who knows something more about this issue or does someone knows if msi is aware about this? I just bought this expensive card and I'm a bit disappointed with this problem.

Quote from: flobelix on 14-February-13, 00:25:26
Power down! Change switch position and restart. Switch must be left or right and mustn't be anywhere in the middle and not being snapped in either of the two position. Switching with power on or not properly powering in can destroy the bios or the entire card.
Ive done exactly as you said but nothing, no image I just tried also with the 2 dvi ports (after i paid 20 dollars to buy one dp to dvi adaptor ) with no better result, no image
With the switch at the initial position every port works fine!

DVI output problem

Hello,
I have a 1.83Ghz Core 2 Duo Mini that will not output any video over DVI.
I have connected the Mini via DVI to three known-good monitors (Apple 20in Cinema Display, Gateway 22in HD LCD, and an Acer 22in LCD) and can't get any video output. I get a startup chime, drive noise and a power light, but no video.
I have attempted to start the Mini in safe mode while connected to the Cinema Display but still can't get any video. I've reset the PRAM and PMU and that didn't help.
The Mini will display video using the Apple-supplied DVI-to-VGA adapter when connected to the Acer and Gateway displays.
When I took the Mini to the authorized service center, they said they couldn't replicate the problem. So I'm a bit stumped. Has anyone here had similar problems and/or solutions?
Thanks in advance for any advice you can offer.

I once had a similar problem. For testing I did not bother to screw in the retaining screws on the plug into the monitor. Could hve kicked myself when, after screwing them in, it worked fine.

Mini-DVI out problem

I recieved my mini-dvi -> dvi apple adaptor from ebay this morning (finally!), but am having a feew teething problems. The plug fits snugly in the back of the iMac, but if pressure( only a little) is applied to the side or top of the plug (the one going into the back of the iMac), I lose the picture. Is it possible that I have a dodgy knock off adaptor ? The part number (603-3795) on the wrapper matched the part number for the 12" powerbook G4 mini-dvi -> dvi adaptor.
After a little more examination I have found that if the plug is pushed in fully, it does take a little leverage to make the connection 'die' I suspect this is due to the greater number of (very) small connections on the mini-dvi port. It does only seem to happen when the plug is pushed toward the DVD drive side of the iMac too (again suspecting losing the connection to a key pin or two).
Does anyone else have experience with this ,and can they advise if they experience similar problems?
Of particlar note is the fact that the menubar (which I have placed on the external monitor) does not get relocated to the iMac screen when the external monitor goes dark, so presumablyy the mac still thinks the monitor is connected. Is there any chance the problem is due to a faulty connection on the motherboard.
I only purchased the iMac from John Lewis last Weds, so presumably I would be within my rights to return it and insist on a replacement?
Grrr, just want it to work right
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the cable was broken - new one from apple fixed it

Mini Displayport to DVI Adapter Problem on Mid-2009 Macbook Pro

I have a new mid-2009 Macbook Pro hooked up to a 20" Samsung 2033sw LCD with a native 1600x900 resolution using a mini Displayport to DVI adapter that I bought off of EBay. No matter what I've tried I can't get anything to display on the external Samsung LCD higher than 1024x768. I tried switching between GPU's and that made no difference. Any ideas.?

Michael, thanks for the reply;
When you open System Preferences/Displays does a second preference panel open up OK on the Samsung ?
Yes, but I can't see it unless I select 'gather displays'. Then it appears on the MBP LCD, and showing the correct resolution - 1600x900.
Is there an Options Tab visible under which you can check 'Overscan' ?
None that I can find. Only display and color tabs.
Is the Refresh Rate set to 60.0 Hertz
Yes, that is what it shows in Refresh Rate.
I also pulled out an older LG LCD that is fairly generic, .e.g. it has DVI in at 1280x1024. Same problem on that LCD ... nothing higher than 1024x768, but this time at 1280x1024 I get major noise and screen distortion. The displayed image is jumping all over the place, but at least there is something displayed.

DVI Flickering Problem

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