bluelamb
New Member
I have a decently high spec system for gaming
i7-4770k-------------Windows 10 on SSD where OBS is installed
GTX 1070-----------Dell S2716DG 1440P 144hz Gsync Primary Monitor connected to GPU
16GB RAM--------- HannsG HZ281 1980x1200p 60hz Secondary Monitor also connected to GPU
I've noticed that with OBS 20.1.3 64bit running on the second monitor with preview enabled, the gameplay on the primary monitor is not as smooth and fluid. (haven't tested other OBS versions but I assume it's the same)
This occurs even when there are no sources - just a blank template and a black screen in the preview of OBS.
The 144hz looks very smooth Preview Enabled turned off - however it's quite important to be able to see what is being shown in real time sites like Twitch.
It seems that somehow, OBS throttles (?) the performance of the 144hz monitor. This can hinder the ability to record/stream games in real time with Preview Enabled.
So in conclusion, OBS on 60hz Secondary Monitor degrades 144hz Primary monitor refresh rate or framerate while Preview is Enabled. Disabling preview is the only fix (?)
CPU or GPU usage don't appear to spike or overload due to preview enabled - so it may not be a hardware performance issue, rather something to do with how OBS handles differing monitor refresh rates.
I have tested in various games like Black Desert Online, PUBG, Rocket League and CSGO. CSGO will probably give the best results in tests because it keeps the highest constant FPS for testing with high refresh rates.
*I'd like to add that if I move OBS to the primary monitor (but not minimized), the issue does not persist. It is only when games are in the primary monitor (144hz) and OBS with Preview Enabled is on the secondary monitor(60hz).
OBS does not have to be capturing the game or recording, or streaming, It simply just needs to be open with preview enabled.
I appreciate OBS teams help and hope there is a solution!
i7-4770k-------------Windows 10 on SSD where OBS is installed
GTX 1070-----------Dell S2716DG 1440P 144hz Gsync Primary Monitor connected to GPU
16GB RAM--------- HannsG HZ281 1980x1200p 60hz Secondary Monitor also connected to GPU
I've noticed that with OBS 20.1.3 64bit running on the second monitor with preview enabled, the gameplay on the primary monitor is not as smooth and fluid. (haven't tested other OBS versions but I assume it's the same)
This occurs even when there are no sources - just a blank template and a black screen in the preview of OBS.
The 144hz looks very smooth Preview Enabled turned off - however it's quite important to be able to see what is being shown in real time sites like Twitch.
It seems that somehow, OBS throttles (?) the performance of the 144hz monitor. This can hinder the ability to record/stream games in real time with Preview Enabled.
So in conclusion, OBS on 60hz Secondary Monitor degrades 144hz Primary monitor refresh rate or framerate while Preview is Enabled. Disabling preview is the only fix (?)
CPU or GPU usage don't appear to spike or overload due to preview enabled - so it may not be a hardware performance issue, rather something to do with how OBS handles differing monitor refresh rates.
I have tested in various games like Black Desert Online, PUBG, Rocket League and CSGO. CSGO will probably give the best results in tests because it keeps the highest constant FPS for testing with high refresh rates.
*I'd like to add that if I move OBS to the primary monitor (but not minimized), the issue does not persist. It is only when games are in the primary monitor (144hz) and OBS with Preview Enabled is on the secondary monitor(60hz).
OBS does not have to be capturing the game or recording, or streaming, It simply just needs to be open with preview enabled.
I appreciate OBS teams help and hope there is a solution!