My Apps stutter when multitasking

SadiNine · November 17, 2019

Hello LTT Community!

So, out of nowhere a few months ago my computer started behaving weird, when i was playing a game and at the same time tabbing out to do something else (Youtube, etc) . Specifically this happened the first time when playing Borderlands 3 and tabbing out.

The game kept running normal, but the video was stuttering reaaally bad. When i had heavy action in the game it even crashed my pc several times!!

Now.. i noticed that:

Game in Fullscreen -> game and video were running smooth, but actually not perfect. It had small but noticable stutters on the video's end.

Game in Windowed/Borderless -> the video got it's crazy lags and stuttering/loading problems as soon as i tabbed into the game. When i tabbed out of the game i could'nt play (obviously :D) but it enabled me to watch the video normally

So i was constantly switching between Fullscreen and Borderless depending on my needs, which was hella annoying...

Another example:

When i play League of Legends, the Client stays open in the background the game is running over it in Borderless. As soon as i get a chat message from any of my friends, the windows logo on the taskbar turns blinking orange (which indicates that the client has stuff to say) and my game starts to framedrop like crazy and its almost unplayable. When i tab out, look at the client and tab into the game again its all back to normal.

Now it seems to me like some app/game focusing thing that my pc doesnt wanna multitask as it used to anymore. The everything hardware related is running like 20% max and it still does that.

I tried following:

-Updated everything u could possibly update (dont tell me to update stuff cause i already did)

-Changed resolutions

-Changed pcie slots

-Tried overclocking, and stock settings, and only xmp

-Set the focus in Taskmanager on the specific tasks needed to high and low

-Different Mainboard

-SSD, HDD dont make a difference

-also tried older versions of my gpu software

-tested watching 2x 4k videos at the same time on 2 monitors. Was almost impossible. Switched to 360p and it made it barely working. (NOTICE: the 2x video tests werent always the same results. Sometimes its worse, sometimes it works fine)

-----> only ONE thing is not properly working out of both just like with the game/video scenario

-i tried other stuff to, but i dont even remember haha

SPECS:

ASUS MAXIMUS XI APEX

I9 9900k

Vega 64 Sapphire Nitro+

16 GB G.Skill Trident Z RGB

bequiet! 1000W

Corsair 360mm AIO

pleaso help ^^

Levent · November 17, 2019

That sounds like driver issue to me, AMD drivers (this is true for GCN but not sure if it applies to Navi) tend to stick to 2D clock speeds defined in bios when there is an app using HW acceleration. However this always has been the case and you would have noticed it a lot earlier.

Uninstall your drivers with DDU

Then install the latest WHQL drivers.

If that doesnt work you gotta reinstall windows 10. (However your issue still might be what I described above)