Question System wide stutter when connecting 2nd display

AntaresSQ01

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Oct 10, 2016
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Hey all, hope everyone is doing well!

I have an old 2nd display i wanted to connect up to my PC it's a 1080p 60hz panel with only VGA and DVI inputs. I have my main monitor (also 1080p 60hz) running off of HDMI from my GTX 980. I though setting up would be as simple as using a VGA cable (I have no DVI to DVI cables) and using a DVI to VGA converter by the GPU.
This worked fine and I managed to set up the monitors as I wanted and they both worked perfectly fine, except maybe flickering on dark areas on the VGA monitor.
Problems start when I get into games. Say I'm watching a video, or even speaking on Discord, when I play a game (any game, even non demanding ones) whenever there is a loading screen (but often even when just playing) I get system wide stutter, sounds stuttering, small freeze of the display and then back to normal. This happens every 15-20 seconds though making it really annoying. I thought it might be CPU related that this is happening, and sure enough in some games, when I change affinity of the game from using all threads to only using the last 8 threads on the CPU, stuttering is reduced massively but not eliminated completely. Strangely, disconnecting the 2nd screen doesn't fix this until I restart the PC.

Any help would be appreciated!

Specs:
CPU: Ryzen 7 3800X 4.5Ghz
Motherboard: Asus TUF Gaming X570-Plus Wi-Fi
Ram: 2x8GB Crucial Ballistix Sport LT DDR4 @2666MHZ
SSD/HDD: Samsung 850 EVO 250GB SATA
Samsung 860 EVO 500GB SATA
Samsung HD204UI 2TB
GPU: EVGA GTX 980 SC ACX 2.0
PSU: Seasonic Prime Ultra Gold 1000W
Chassis: Corsair Carbide Series Spec-Delta
OS: Windows 10 Pro x64 Build 1909
 
you can change background allocation following this guide
https://itsiti.com/allocate-processor-resources-windows-programs-background-services

also from microsoft:
Users have the ability to control background activity for their device through two interfaces in the Settings app: the Background apps page and the Battery usage by app page. The Background apps page has a master switch to turn background activity on or off for all apps, and provides individual switches to control each app's ability to run in the background.


alternatively u can alter it in group policies in those locations
./Vendor/Microsoft/Policy/Config/Privacy/LetAppsRunInBackground ./Vendor/Microsoft/Policy/Config/Privacy/LetAppsRunInBackground_ForceAllowTheseApps ./Vendor/Microsoft/Policy/Config/Privacy/LetAppsRunInBackground_ForceDenyTheseApps ./Vendor/Microsoft/Policy/Config/Privacy/LetAppsRunInBackground_UserInControlOfTheseApps
 
Reactions: AntaresSQ01

AntaresSQ01

Reputable
Oct 10, 2016
80
1
4,645
1
you can change background allocation following this guide
https://itsiti.com/allocate-processor-resources-windows-programs-background-services

also from microsoft:
Users have the ability to control background activity for their device through two interfaces in the Settings app: the Background apps page and the Battery usage by app page. The Background apps page has a master switch to turn background activity on or off for all apps, and provides individual switches to control each app's ability to run in the background.


alternatively u can alter it in group policies in those locations
./Vendor/Microsoft/Policy/Config/Privacy/LetAppsRunInBackground ./Vendor/Microsoft/Policy/Config/Privacy/LetAppsRunInBackground_ForceAllowTheseApps ./Vendor/Microsoft/Policy/Config/Privacy/LetAppsRunInBackground_ForceDenyTheseApps ./Vendor/Microsoft/Policy/Config/Privacy/LetAppsRunInBackground_UserInControlOfTheseApps
Wow, that actually seems to have helped, no more stutter for the time being.
 

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