Unique screen problem every 30 min or so

[Jeppejack]

So every 30 min or so, when i have been watching GOT on HBO for the past month. I seem to get a white mark stretching across the scree, different everytime. I have a linked a video of me recording it for reference. Anyone has any idea, what it could be, i opened the pc and took everything out and cleaned it, i also checked for corrosion, so i saw nothing really bad in particular. The mac is a a1425 at least some 5-6+ years old i think. The problem didn´t solve itself after the self clean, so i am gonna need some advice here. Anything is much appreciated.

The video is showing the artifact in question

Any little details would be amazing <3

 

[MacNut]

It would be great if you could film it in landscape. Best guess is video card.

 

[Jeppejack]

It would be great if you could film it in landscape. Best guess is video card.

In landscape ? You mean the background ?

 

[dotzero123]

The video in your message is sideways.

 

[Jeppejack]

The video in your message is sideways.

Argh i see. Would a landscape video help locate the problem more, it seems the white artifact pops up quite clearly for me, but i dont know if its just me.

 

[dotzero123]

You can clearly see the problem, though. Hopefully the post will help you identify the problem!

 

[BrianBaughn]

All four A1425 models seem to have "an integrated Intel HD Graphics 4000 graphics processor that shares memory with the system" (everyman.com).

"Every 30 minutes" doesn't seem like a hardware issue.

Have you tried using an alternate browser to see if you can pinpoint a software issue?

 

[Jeppejack]

All four A1425 models seem to have "an integrated Intel HD Graphics 4000 graphics processor that shares memory with the system" (everyman.com).

"Every 30 minutes" doesn't seem like a hardware issue.

Have you tried using an alternate browser to see if you can pinpoint a software issue?

i can try out a new browser but it doesnt seem to be that. I chose chrome cause of flash player for HBO. Also my Mac doesnt overheat, or atleast its not more than 35-45 when i touch it
[doublepost=1545866166][/doublepost]

i can try out a new browser but it doesnt seem to be that. I chose chrome cause of flash player for HBO. Also my Mac doesnt overheat, or atleast its not more than 35-45 when i touch it

Is there anyway to record Mac activity while watching to see if anything changes around the time the artifact would happen ?

 

[Apple fanboy]

i can try out a new browser but it doesnt seem to be that. I chose chrome cause of flash player for HBO. Also my Mac doesnt overheat, or atleast its not more than 35-45 when i touch it
[doublepost=1545866166][/doublepost]
Is there anyway to record Mac activity while watching to see if anything changes around the time the artifact would happen ?

I blame the Whitewalkers! As above try a different browser. Or try creating a different user account to see if that helps.
Lastly is anything else running? Might be worth shutting everything down then trying with just the show running.
To see what is happening you can use Activity monitor to see if something is taking your graphics card etc.

 

[Jeppejack]

I blame the Whitewalkers! As above try a different browser. Or try creating a different user account to see if that helps.
Lastly is anything else running? Might be worth shutting everything down then trying with just the show running.
To see what is happening you can use Activity monitor to see if something is taking your graphics card etc.

Nothing else should be running only the show

 

[Apple fanboy]

Nothing else should be running only the show

Well quit everything just to be sure. Activity monitor will show you if anything is hogging resources after 30 minutes.

 

[jerryk]

i can try out a new browser but it doesnt seem to be that. I chose chrome cause of flash player for HBO. Also my Mac doesnt overheat, or atleast its not more than 35-45 when i touch it

They are really using Flash? Adobe abandoned Flash and is not longer making any changes. It will no longer be distributed in 2020. I suggest you look for non-Flash alternatives.

 

[Jeppejack]

I tried other browsers now and it seems the issues have resolved with the white artifact, but all other browsers, safari, firefox seem to have issues now with the video image freezing, while the audio keeps going and it suddenly cuts to where the audio is 5-10 sec later.

This also seems to happen way more often than the white artifacts did. Like each 5-10min