So I've been looking online for several weeks now to try and find the best solution to my problem. I've found some solutions that give partial and inconsistent results and I'm hoping with the help of this forum here I can put this issue to rest.
My system specs are as follows:
-CPU: 6950X - On water
-GPU: 1080ti x2 SLI - On water
-Monitor 1 (main): Asus PG279Q - 1440p 165hz (Gsync on)
-Monitor 2/3: VS239H-P x2 1080p
-HDD: 960 M.2 SSD 1TB
-RAM: 32GB DDR4 3000mhz
-OS: Windows 10 Build 17763
-Network: FiOS GIG 990/880Mbps - Wired gig connection
Goal:
To play on 1440p 165hz w/ Gsync and stream at 1080p 60fps or 720p with minimal to no frame render issue.
There was a good period of time where I had no issue streaming with keeping my native resolution and high frame rate, OBS seemed to keep right up with little or no dropped frames.
Fast forward to the past few months I've noticed more and more games have lots of issues rendering in OBS leaving my stream barely watchable. The stats window confirms they are missed frames due to rendering issues. I've seen several threads around where users report the same issue. A rig more than capable of streaming and playing rendered useless due to what seems like a windows issues. The workaround seems to be hard capping your games with something like Rivatuner to match the FPS output of your stream.
OBS is running on Monitor 2 (1080P)
OBS is set to downscale to 1080p @ 60fps / 720p
Using CBR of 6000
Tried both X264 and NVENC
Here's what I have tried thus far to troubleshoot:
-Gsync both on and off
-SLI both on and off
-Forcing games to run with SLI using profile inspector (Mixed results) It seems if the load gets split properly and there is enough headroom on GPU0 OBS has no problem.
-Messing with CPU core affinity/priority that OBS.exe uses
-Tried SLOBS and Streamelements OBS
-Forcing the game to run @ 60FPS (only works if I can manage to edit the .ini of the game or it has ingame frame limiter) - This has worked most recently for resident evil 2.
-Playing fullscreen, borderless and windowed
-Tried Game Capture, Window Capture& Display capture - Same results
-Setting my primary display to various refresh rates (144, 60, 165)
-Reducing Canvas to 720p 30 FPS
-Reducing Camera to 720p 30 FPS
OBS Log
It is worth mentioning that when I am playing in windowed or borderless if I bring the window out of focus (IE: click on another window) I can see the dropped frame issue go away. Regardless if I'm in a menu of the game or right in the middle of something, as soon as the window comes back in focus the issue resumes.
If I'm playing an easy to run game and my GPU0 stays below 80% the stream goes back to being butter smooth. Am I mistaken with my impression that OBS only needs 5-10% GPU headroom?
is my only option at this point a second stream PC or a capture card?
My system specs are as follows:
-CPU: 6950X - On water
-GPU: 1080ti x2 SLI - On water
-Monitor 1 (main): Asus PG279Q - 1440p 165hz (Gsync on)
-Monitor 2/3: VS239H-P x2 1080p
-HDD: 960 M.2 SSD 1TB
-RAM: 32GB DDR4 3000mhz
-OS: Windows 10 Build 17763
-Network: FiOS GIG 990/880Mbps - Wired gig connection
Goal:
To play on 1440p 165hz w/ Gsync and stream at 1080p 60fps or 720p with minimal to no frame render issue.
There was a good period of time where I had no issue streaming with keeping my native resolution and high frame rate, OBS seemed to keep right up with little or no dropped frames.
Fast forward to the past few months I've noticed more and more games have lots of issues rendering in OBS leaving my stream barely watchable. The stats window confirms they are missed frames due to rendering issues. I've seen several threads around where users report the same issue. A rig more than capable of streaming and playing rendered useless due to what seems like a windows issues. The workaround seems to be hard capping your games with something like Rivatuner to match the FPS output of your stream.
OBS is running on Monitor 2 (1080P)
OBS is set to downscale to 1080p @ 60fps / 720p
Using CBR of 6000
Tried both X264 and NVENC
Here's what I have tried thus far to troubleshoot:
-Gsync both on and off
-SLI both on and off
-Forcing games to run with SLI using profile inspector (Mixed results) It seems if the load gets split properly and there is enough headroom on GPU0 OBS has no problem.
-Messing with CPU core affinity/priority that OBS.exe uses
-Tried SLOBS and Streamelements OBS
-Forcing the game to run @ 60FPS (only works if I can manage to edit the .ini of the game or it has ingame frame limiter) - This has worked most recently for resident evil 2.
-Playing fullscreen, borderless and windowed
-Tried Game Capture, Window Capture& Display capture - Same results
-Setting my primary display to various refresh rates (144, 60, 165)
-Reducing Canvas to 720p 30 FPS
-Reducing Camera to 720p 30 FPS
OBS Log
It is worth mentioning that when I am playing in windowed or borderless if I bring the window out of focus (IE: click on another window) I can see the dropped frame issue go away. Regardless if I'm in a menu of the game or right in the middle of something, as soon as the window comes back in focus the issue resumes.
If I'm playing an easy to run game and my GPU0 stays below 80% the stream goes back to being butter smooth. Am I mistaken with my impression that OBS only needs 5-10% GPU headroom?
is my only option at this point a second stream PC or a capture card?
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