Display distoring when scrolling + flickering in video.

At random times my display starts distorting (seems that there isn't a full screen refresh taking place when it should) when I scroll in Safari, Firefox, Cyberduck etc. Video also distorts at these times.
See a picture here: http://www.rutgermuller.nl/temp/macbook_display.jpg
Apple support told me this is a software issue that will be fixed, BUT WHEN!? I've been waiting for about 2 months now. It's very annoying to have to restart the MacBook at random times.

Have upgrade now, thanks. I'll keep you posted.

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Display ripples when scrolling ANY types of pages

This is driving me nuts. And giving me headaches. And making my head spin.
My MBPro 2.4Ghz with infamous Nvidia 8600M GT 256MB graphics card is the culprit. A real letdown compared to all the Macs in general, and the portables in particular, that I've used over the last 20 years.
As others have reported here, there is a MAJOR issue with "rippling" lines of text when scrolling web pages. But I am getting the same thing when scrolling ALL types of pages: web, text, spreadsheets, etc.
It happens both on the MBPro screen and on an external monitor.
It happens when scrolling with the trackpad or with a USB mouse.
It happens at all times.
And, if this is possible, it seems to be getting worse. It's almost at the point where I have to TAKE MY EYES OFF THE SCREEN if I have to do any scrolling. If not, by the end of the work day, my head is spinning, my eyes are dead tired, I'm going cross-eyed and, more times than not, I've got a headache from all the "visual effects".
I took my MBPro to an Authorized Apple Technician, to see if it had the defective Nvidia graphics card. I'd done a reformat and fresh install of 10.5.7 the night before.
The Nvidia test software, on an external HD, showed that I don't have a defective card.
Not a bid deal in the end, as they would have just installed the SAME type of graphics card and logic board.
I convinced the Apple Tech to use my MBPro for a few minutes, just to show him what I meant. He said he was surprised to see the ripples, that he'd never really focused on that in the past. But they were definitely there, and he wasn't able to say that it was "normal", as he really wanted to do.
He said he thought it might be a problem with the NVIDIA DRIVERS.
He then went onto his 24" iMac with Nvidia graphics card and, lo and behold, he had THE SAME RIPPLING while scrolling longer web and text pages.
This made him more convinced that it must be "imperfect" Nvidia drivers in Mac OS 10.5. And he said the only thing to do was hope that Apple and Nvidia get these drivers perfected and thoroughly tested in the near future, either by specific update or IN SNOW LEOPARD.
What's frustrating is that I have NEVER had this problem with either our iMac 20" Core Duo, which has an ATI graphics card, or our Macbook Core 2 Duo with GMA 950 Intel chipset. That is, with much older, less powerful Intel Macs, but ones that DON'T HAVE NVIDIA graphics cards.

I call it more of a flicker, but I also experience this issue with a MBP (led backlight). It is not browser dependant, but as Safari scrolls smoothly, it is much more apparent with this than other browsers.
Here is a perfect example, watch the sidebars on this page while scrolling :
http://www.theautochannel.com
It's also particularly bad with this site (apple discussion board), and others with high contrast text, the text flickers/ripples very badly This never happened with my Powerbook display. Is this an issue or simply inherent with these displays. Personally, it is giving me headaches when scrolling through large amounts of text (which I often do for work), and rendering this laptop virtually unusable for me.
I'm surprised to find very few others complaining about this phenomenon, perhaps I'm not describing the issue well with my search terms. Has anyone heard of a solution?
Thanks

Display problem when scrolling in Finder OS X Lion.

Hi,
Last week i bought a new iMac, i7, AMD Radeon 6970M.
Sometimes, when scrolling in the Finder, the text is displayed weird.
See screendump. Is anyone known with this issue?

I've had the exact same problem with Lion. Telephone support told me to reinstall OS X Lion, which didn't help. The genius at the Genius bar told me it was my 3rd party (Kingston) RAM. He demonstated the display was fine without the extra RAM, but he was using a USB mouse with a scrollwheel. At home, my bluetooh magic mouse continued to cause the same problem, and so did my trackpad. So I determined it had to do with the faster (and different type of) scrolling that these newer devices perform. I then saw that if I use the slider on the right side of the finder window instead of gesturing with the mouse or trackpad it works fine.
So I played with my settings a bit to see if I could overcome this problem, and found a solution. I went to "Preferences-General-Show scroll bars" and changed from "Automatically based on input device" to "Always". This nearly fixes the problem! At least so far. I get an occasional glitch if I scroll up and down a lot, but way less frequently than when its set to the default "Automatically based on input device". This must be due to the new disappearing scrollbar "feature" in Lion. Nicely done, Apple!

After ver 26 was installed my screen display distorts when scrolling - I tried resetting - no luck - any suggestions?

when I use either the scroll down bar on the right side or arrows up/down the display on the screen distorts at an angle as it moves up or down. does not reset with time

I think I saw a screen shot of this in a different thread, but I can't find it at the moment.
When there are strange display artifacts, I suspect a graphics driver incompatibility.
As a workaround, you could disable hardware acceleration of graphics in Firefox and in Flash (if relevant):
(A) In Firefox, un-check the box here and restart:
orange Firefox button (or Tools menu) > Options > Advanced > General > "Use hardware acceleration when available"
(B) In Flash, see this support article from Adobe: http://helpx.adobe.com/flash-player/kb/video-playback-issues.html#main_Solve_video_playback_issues
Any improvement?

My Macbook Pro with Retina display stutters when scrolling

When I scroll my documents up-or-down with the trackpad or a connected trackball ... the screen visibly stutters (can't think of a better word). Doesn't matter what app or which User mode I use. Seems to be getting worse with each Mavericks update!

I had to call Apple and the tech made me enter a bunch of terminal commands to fix this. Unfortunately I can't tell you excactly what it was. I think the best way would be to call Apple.

Since upgrade to FF13: having problems with flash content, especially videos when scrolling/multi tasking--freezing the video and sound for 1-2 sec. Any advice?

At first, the same night I decided to update--things were fine but after using the browser hours later a second time: some flash scripts would simply not respond and freeze the tab the content is on or like in my question, constantly stutter. The problem for flash videos only seem to occur when I scroll onto links or when moving up/down a page. I encountered similar problem with FF7--like that time, I installed/uninstalled the flash player and even resetted firefox but to no avail--the problem persisted. It is also present while in safe mode. P.s. such problem is seemingly not present in other browsers which brought me to ask this question for assistance.

I have the same issue. When I scroll past embedded videos, such as YouTube videos, they are torn or disrupted. The video may shrink in size when I scroll, etc. Issues only arise when scrolling past the video. When playing, no issues.
I've tried the following that did not help:
Safe mode
Video driver up to date
Flash completely up to date
All plugins up to date.
Only started happening when I updated to FF13.

Cursor dissappears when scrolling

I can see how it would be a desireable feature to have the cursor dissapear when you are scrolling down a page and don't want it to block text. However it can be a PITA at times. Is there a setting somewhere that will diable this feature so that the cursor always displays even when scrolling? (exanmple, when I use the up/down arrows to scroll through a web page, the cursor dissappears until I move it).

Bumping just in case someone might know a fix.

Flickering when scrolling

I am using the freshly downloaded trial version of Adobe Premiere Elements 13 and am experiencing some problems with the application.
When scrolling the tracks in expert mode, a very annoying flickering appears, even without having loaded large or heavy video clips.
I have also encountered multiple hangs/freezes when working with Titles & Text.
I am running on an iMac 2,5 Ghz i5 with the latest software updates installed, 8gb of memory, SSD drive and an AMD Radeon HD 6750M graphics card with 512MB of memory.
Suggestions anyone?
Thanks,
Jan

Jan
That is one strange looking Expert workspace Timeline. Are you seeing the same type of thing in the Quick workspace Filmstrip space?
Let us start by deletion the Adobe Premiere Elements Prefs file. I believe in Mac it should be found
Users/Owner/Libraries/ Application Support/Adobe/Premiere Elements/13.0
If that does not help, then the usual questions
1. Is your video card/graphics card AMD Radeon HD 6750M driver version up to date according to the web site of the manufacturer of
the card?
2. Does the problem exist with or without the antivirus and firewall(s) disabled?
3. Are you working with pen and tablet device or mouse?
Let us start here and then decide what next.
Thank you.
ATR

Screen flashes or flickers when scrolling

When scrolling through web pages, my screen flashes or flickers. Turns white and then the page displays. Not a major issue, just more of an annoyance than anything. I have turned my phone off twice to see if that helps and doesn’t seem to change anything. Any ideas?

Hi All,
I just got back my iPad after diagnosis from apple care. They have said it's a software issue and nothing related to hardware. Moreover, I checked a few iPads on display at an apple store and still found the same issue.
Cheers,
Mahesh

I have added/embedded four videos on my website, but when I scroll down, the videos scroll in front of the top menu instead of behind as it should. I have tried changing layers, etc., and nothing works. Can you help?

I have embedded 4 videos on my website. It is a single page, scrolling site. When I scroll down, the videos scroll in front of the top menu bar, instead of behind it. I have tried changing layers, etc., and nothing works. Please help.
Thanks.
Paul W. Norman

Hi,
Kindly create a new layer, via the Layers panel:
Then, right click on the navigation bar, and choose Move to Layer > Layer 2
Ensure that Layer 2 is on top of the other layers.
Hope it helps,
Sonam

Im having trouble connecting my macbookpro to the tv. im using a mini display port to hdmi adapter, when i switch tv/video to hdmi on the tv nothing pops up, and i dont have the arrangement tap on the display settings, please help!

im having trouble connecting my macbookpro to the tv. im using a mini display port to hdmi adapter, when i switch tv/video to hdmi on the tv nothing pops up, and i dont have the arrangement tap on the display settings, please help!

I've found that the order of operations, so-to-speak, can be important when hooking up mini display port to HDMI. I have the most success with the following operations in this order:
1) Plug HDMI cable into mini displayport adapter (the cable should not be plugged into either the TV or the computer at this point)
2) Plug the mini displayport end of your new super-cable to the computer.
3) Plug the HDMI end into your TV.
4) Switch inputs on your TV to the proper input.
5) If still nothing on the TV, try a different HDMI port on your TV.
Hopefully this helps! Good luck.

I have MacBook Pro bought 2011. After downloading update for Canon digital camera, computer screen is flickering (like curtain moving in breeze) when scrolling on all websites (slightly less with Safari )

I downloaded from Canon website an update to my Canon 750 IXUS digital camera. It downloaded various software products onto my computer which are outlined in the computer's database of software applications. From that time, this flickering effect occurs when scrolling through all pages using Firefox and to a lesser extent on Safari. It is like the effect of someone blinking rapidly and constantly and looking at the screen. When not scrolling there is no such effect. It is very disruptive when trying to read a page.

I downloaded from Canon website an update to my Canon 750 IXUS digital camera. It downloaded various software products onto my computer which are outlined in the computer's database of software applications. From that time, this flickering effect occurs when scrolling through all pages using Firefox and to a lesser extent on Safari. It is like the effect of someone blinking rapidly and constantly and looking at the screen. When not scrolling there is no such effect. It is very disruptive when trying to read a page.

Why does safari freeze on Facebook whenever I scroll to a video? This only happens in Facebook and only when I scroll to a video.

Why does safari freeze on Facebook whenever I scroll to a video? This only happens in Facebook and only when I scroll to a video.

Hello,
Most videos on the internet are played using the Adobe Flash plugin.
Recent crashes of certain multimedia contents (this includes Youtube videos, certain flash games and other applications) in conjunction with Firefox are most probably caused by a recent Flash update and/or a malfunctioning browser plugin such as Real Player.
In order to remedy the problem, please perform the steps mentioned in these Knowledge Base articles:
* [[Flash Plugin - Keep it up to date and troubleshoot problems]]
* [[Flash 11.3 crashes]]
* [[Flash 11.3 doesn't load video in Firefox]]
Other, more technical information about these issues can be found under these Links:
* http://forums.adobe.com/thread/1018071?tstart=0
* http://blogs.adobe.com/asset/2012/06/inside-flash-player-protected-mode-for-firefox.html
I hope this helps. Let me know if not.

Firefox: Flickering when scrolling - need help with clean 'new' install

Screen is flickering when scrolling (IE does not). I tried disabling add-ons and tried safe mode - neither helped. Running Win 7 Pro 64bit. Uninstalled via 'Programs and Features'. Download and reinstalled Firefox. Now it shows all my previous settings: menu bar, bookmarks bar, etc. Question: how did it get that stuff back if it 'cleanly' uninstalled? Question: how do I know it didn't pick up it's old 'bad habit' from the previous settings? I am an experienced PC user but not Firefox expert. Looking for help lest I have to ditch Firefox completely...

Hello,
Try disabling graphics hardware acceleration. Since this feature was added to Firefox, it has gradually improved, but there still are a few glitches.
You might need to restart Firefox in order for this to take effect, so save all work first (e.g., mail you are composing, online documents you're editing, etc.).
Then perform these steps:
#Open Firefox ''Options'' window (''Preferences'' on Mac or Linux) as follows:
#* In Firefox 29.0 and above, click the menu button [[Image:New Fx Menu]] and select ''Options'' for Windows or ''Preferences'' on Mac or Linux.
#* In Firefox 28.0 and previous versions, click the orange Firefox button at the top left, then select the "Options" button, or, if there is no Firefox button at the top, go to Tools > Options.
#In the Firefox Options (or Preferences) window, click the ''Advanced'' tab, then select ''General''.
#In the settings list, you should find the ''Use hardware acceleration when available'' checkbox. Uncheck this checkbox.
#Now, restart Firefox and see if the problems persist.
Additionally, please check for updates for your graphics driver by following the steps mentioned in the following Knowledge base articles:
* [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]]
* [[Upgrade your graphics drivers to use hardware acceleration and WebGL]]
Did this fix your problems? Please report back to us!
Thank you.

Firefox Desktop 15.0.1 Displays Artifacts at bottom of page when scrolling up or down

Black artifacts flickering at bottom of window when scrolling up or down. It is a black bar with no content, sometimes occupying 30% of bottom part of window.
However, Microsoft offered an emergency fix-it for IE on September 20, 2012. This problem went away for few hours. Installing the critical update for IE allowed FF to run without this issue for two days after install on September 23rd.
Why that would be, I cannot say.
Have a screenshot of FF when this happens. Bar is very small ATM, but flickers just the same. Normal artifact extends from left side to right side; only a partial bar is caught with this screenshot.
Where to attach screenshot?

Try to disable hardware acceleration in Firefox.
*Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"
*https://hacks.mozilla.org/2010/09/hardware-acceleration/
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
*https://support.mozilla.org/kb/how-do-i-upgrade-my-graphics-drivers

Display distoring when scrolling + flickering in video.

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