Question Videos stutter in all browsers in unfocussed window

[Strumpfus]

Hey there!

I've been looking all over the internet for people with similar issues and solutions and found a lot of things of which zero helped me.
So maybe there is somebody here who might recognise this:

It started quite recently. I usually play games like WoW on my first monitor and have a youtube video running on the second one. For some reason the videos stutter now (mainly video with a bit of audio lag) on the second screen. I experimented a bit and found that this is a problem for every browser I tried (Google Chrome, Firefox, Edge and Opera) but doesn't affect regular video players. Also it appears not to be an issue with my second monitor as I first believed because the stutter occurs when the youtube (or vimeo or any other online video) window is unfocussed and I focus another one.
It is the same for the games by the way. When I tab out of them they turn into a few chopped up frames as well. Switching between full screen, windowed mode and borderless window doesn't change anything either.
I also tweaked around a bit with the AMD Radeon settings (global v-sync, GPU-scaling) and disabled and updated Adobe Flash which both did nothing.


My specs are:

Windows 10
CPU: AMD FX-4100
GPU: AMD Radeon HD 7700
RAM: 8 GB
Hard Drive: 930 GB HDD
Screen 1: ASUS VS247 60 Hz, 1920x1080
Screen 2: X1910WAS 60 Hz, 1440x900

Does anyone here know what is causing this and how to stop it?

best regards

 

[wpgwpg]

How busy is your C: drive? How much RAM is being used if you do a fresh boot and start a video?

 

[Strumpfus]

How busy is your C: drive? How much RAM is being used if you do a fresh boot and start a video?

The C: drive is on very low percentages with some rare spikes up to around 50%. RAM is constantly around 60%.
Weirdly though, CPU is quite busy going up to 90-100% when running a youtube video. A lot of that seems to come from my antivirus (Avira) and Google Chrome, however when it's up at 100% the percentages in the processes tab don't seem to add up to 100%.

 

[wpgwpg]

How's your Internet speed?

 

[Strumpfus]

How's your Internet speed?

About 50 Mbps but I'm very positive that's not the cause. It's fast and stable enough for streaming. The laggyness is a frame problem only occurring when the browser window is out of focus. Interestingly the stutter increases the more I move my mouse. When I vigorously move it around the video actually stops completely while sound keeps playing with only a bit of stutter. Could that be a hint?

 

[wpgwpg]

Where did you get your driver for that AMD Radeon HD 7700? When I visited the AMD support site, I didn't see a driver for that card. The closest I saw was for the 7730 and 7670.

 

[Strumpfus]

I think I updated the drivers through Radeon Settings after the problem started occurring. I checked on the AMD website as well and didn't find anything. That's odd should be up to date, though.

 

[wpgwpg]

You might try the Event Viewer System log. Click Start and type Event Viewer. Click Windows logs -> System. Browse for events flagged ERROR. Be aware that this log is very cryptic, but sometimes you can get clues as to what's happening from it.

 

[Strumpfus]

You might try the Event Viewer System log. Click Start and type Event Viewer. Click Windows logs -> System. Browse for events flagged ERROR. Be aware that this log is very cryptic, but sometimes you can get clues as to what's happening from it.

Meanwhile I reset windows twice and it's still there Event Viewer didn't give me any valuable hints, either.
Thanks for your advice, though.