Greetings. I have been dealing with "artifacts"

[mofugger]

I have finally joined after doing a lot of reading, there is a ton of great information here. I did a search for my issue and was unable to ascertain which sub-forum to post it in. I found out that I have been dealing with "artifacts" I only saw them while watching videos that had lots of movement/activity. From reading some posts I did a few things, I uninstalled Flash, I got some compressed air and dusted out my tower, all of which made no difference. Then I installed a new 600w power supply, along with a new NVIDIA GeForce graphics card, updated to the latest drivers and I am still getting the artifacts. The only difference is that they changed their appearance slightly.

If I may just confirm what I have are really artifacts, what I am seeing on the video is transparent lines running horizontally and flashing just briefly it pretty much happens throughout the video. I will post my PC information below.
Any help would be greatly appreciated.

Thanks for reading.

Windows 7 64-bit build 7601, AMD FX-6120 Six-Core Processor, 10 GB Ram, 1TB HDD, NVIDIA GeForce GT 740 Graphics card w/4095MB DDR3 128-bit Memory

[manono]

Can you post a short ten-second sample so we can confirm it's something peculiar to your system, and not something to do with the video itself?

Based solely on I only saw them while watching videos that had lots of movement/activity, it could just be ordinary interlacing (look it up) and nothing out of the ordinary.

[Baldrick]

I updated the thread title so it better describes your main problem. You can edit it by click on Edit and Go Advanced.

[mofugger]

Can you post a short ten-second sample so we can confirm it's something peculiar to your system, and not something to do with the video itself?

Based solely on I only saw them while watching videos that had lots of movement/activity, it could just be ordinary interlacing (look it up) and nothing out of the ordinary.

Thanks for the response, I looked up interlacing and from what I found (I will attempt to post an image, which is from Google and not my PC) it is not interlacing. It seems that interlacing can cover the whole screen, what is happening to me is the artifacts are not constant, they will flash very briefly and inconsistently. I would have to post a whole video for you to see and what may happen on your end is you may not see the artifacts because you probably don't have the issue that my stupid PC does. LOL

Thanks again.

[mofugger]

I updated the thread title so it better describes your main problem. You can edit it by click on Edit and Go Advanced.

Thanks, I understand.

[davexnet]

Post a small section of the video, otherwise we'll never know what/where the problem lies.

[mofugger]

Dave,
Thanks for the reply.
It wouldn't do any good to post a video, the problem is with MY computer and not anyone else's so how would you or anyone be able to see what is going wrong. Maybe this will explain further, this happens when I'm watching a youtube video and when I watch a video from my HD. It happens when I put in a DVD to watch. Even if I brought a video from my computer on a flash drive to watch on your computer, we would not have the same issue.

Again, the artifacts are inconsistent, they come and go and I have no idea when they will show up on my screen. So I would not be able to even make a screengrab as I agree with you as that would better show what the problem is.

[johns0]

Does it only happen on some videos or all videos?

[mofugger]

Only on the ones that have a lot of motion/activity. If I watch a youtube video that only has lyrics and no motion, I don't see anything.
Thanks.

[davexnet]

Video card over heating ? If you're using Firefox, turn off HW acceleration in the browser and
see if it affects it (you need to close/re-open FF for it to take affect).

[mofugger]

Thanks for the response Dave,

I just installed a new NVIDIA GeForce card and it came with an application that monitors the temp along with other things, it will alert me if something like that happens. Also, regarding Firefox, this problem happens when I'm not using it. I have seen the artifacts while using MPC, VLC and windows media player. This crap is driving me nuts, I've tried to address as many issues as I could before I came here and bothered anybody, yet it seems like it was all for nothing.

Thanks again for your help.

[johns0]

Post a link to a flash video that has this effect so i can see if there is any issues with it.

[mofugger]

I just did a Google search for images of artifacts and now I'm wondering if the meatball at best buy was full of shit. The image I attached in an earlier post shows what is considered "artifacts". That is not the problem I am having. I will post an image that I collected and altered to show what I am dealing with. Bear in mind that even though the lines that I drew are solid, the lines on my video playback are transparent, flash very quickly and then disappear and reappear throughout the video.

Thanks.

[davexnet]

What kind of of device is being used? TV ? Dedicated monitor ?

What interface? DVI ? HDMI ? Analog ?

[johns0]

Try a different cable,i once had similar issues on my hdtv with weird artifacts,was a faulty hdmi cable.If that doesn't fix it try another monitor.

[mofugger]

I have a dedicated monitor, VGA connection. With the following adapter plugged into my card.

[Brad]

Could you take a video of your monitor when it happens, using your phone for example?

[mofugger]

I never thought of that!

[mofugger]

I wanted to show the video with very little motion and then with a lot of motion. Around the .30 second mark, look across the top of the screen, its pretty prominent.

As far as trying a different monitor or cable, I don't have another one to use.

[jagabo]

That looks like tearing. The graphics card is swapping frame buffers in the middle of the frame rather than waiting for the vertical sync interval. So the part above the line is from one frame, the part below from another frame. Look in your media player's settings for vertical sync options. Try a different output device in the player settings. Try a different player. If you are using a multimonitor setup try playing on the other monitor. Sometimes the v-sync setting only works on one monitor.

[mofugger]

That looks like tearing. The graphics card is swapping frame buffers in the middle of the frame rather than waiting for the vertical sync interval. So the part above the line is from one frame, the part below from another frame. Look in your media player's settings for vertical sync options. Try a different output device in the player settings. Try a different player. If you are using a multimonitor setup try playing on the other monitor. Sometimes the v-sync setting only works on one monitor.

Thanks for the response, this is happening with all of my media players, MPC, VLC, Windows Media Player, it also happens when watching videos through a web browser, IE, Firefox.
As I stated before, I only have one monitor available to me.

I found that MPC has something called a "Tearing Test", I ran this and all it did was to have two red vertical lines pass from left to right across the screen while the video was playing.
Thanks again for the ideas.

[jagabo]

I found that MPC has something called a "Tearing Test", I ran this and all it did was to have two red vertical lines pass from left to right across the screen while the video was playing.

Yes. The two red lines move to the right with each frame that is passed to the graphics card. If tearing is the problem the two red lines will be obviously torn at times.

[mofugger]

They do break up when they pass over one of the artifacts, if that is really what they are. I just want to fix this and not keep bothering anyone.

Thanks for the response.

[jagabo]

Try the different output devices in MPC. View -> Options -> Playback -> Output -> DirectShow Video... You may need to exit the program and restart it for changes to take effect. Also on that same page is the Alternative VSync option to try out.

[mofugger]

jagabo,

Thanks again for the ideas, but I am having this problem across the board, not just MPC but VLC, Windows Media Player and my internet browsers. Even if I play a pre-recorded DVD they still ruin the video. Maybe I just have to live with it.

I really appreciate all the help.

[jagabo]

Thanks again for the ideas, but I am having this problem across the board, not just MPC

The point is to get hints as to the source of the problem.

Also try different graphics drivers. Always WHQL certified drivers, not the latest beta builds. Look through the graphics card's setup applet for vsync settings (gamers often turn it off to get higher frame rates). Try booting a live Linux CD and see if you can duplicate the problem there. I've never heard of this happening within the monitor but I suppose that's possibility too.

[johns0]

The op said this issue also happened on his older computer so i think it's either a cable or monitor issue,all you have to do is get another cable or monitor to try.