Question / Help Black screen on PC in multiple games

[Vorous]

Hello, I have just recently started having problems with OBS after a number of weeks without issue. I am using Windows 7 64-bit, and am now encountering a black screen when using game capture in any game (so far tested in Smite and Mass Effect 1 & 3). Window and desktop capture work fine, but are not ideal, so I am hoping to solve this and get game capture working again.

This problem has persisted despite a clean reinstall of the latest Nvidia drivers and the disabling of my internal video card. I am not aware of any changes on my PC that took place between now and the time when OBS worked perfectly with Smite in game capture mode. Thanks for any help you can offer.

Mobo: Gigabyte GA-Z87MX-D3H
GPU: EVGA GeForce GTX 760
CPU: Intel i5-4670k 3.4GHz
RAM: 8g HyperX Blu
OS: Windows 7 64-bit

05:01:04: Open Broadcaster Software v0.622b - 64bit (　^ω^)
05:01:04: -------------------------------
05:01:04: CPU Name: Intel(R) Core(TM) i5-4670K CPU @ 3.40GHz
05:01:04: CPU Speed: 3392MHz
05:01:04: Physical Memory:  8079MB Total, 4584MB Free
05:01:04: stepping id: 3, model 60, family 6, type 0, extmodel 1, extfamily 0, HTT 1, logical cores 4, total cores 4
05:01:04: monitor 1: pos={0, 0}, size={1440, 900}
05:01:04: monitor 2: pos={-1440, 0}, size={1440, 900}
05:01:04: Windows Version: 6.1 Build 7601 S
05:01:04: Aero is Enabled
05:01:04: -------------------------------
05:01:04: OBS Modules:
05:01:04: Base Address     Module
05:01:04: 000000003F030000 OBS.exe
05:01:04: 00000000E55D0000 OBSApi.dll
05:01:04: 00000000E58C0000 DShowPlugin.dll
05:01:04: 00000000E7490000 GraphicsCapture.dll
05:01:04: 00000000E7460000 NoiseGate.dll
05:01:04: 00000000E5890000 PSVPlugin.dll
05:01:04: ------------------------------------------
05:01:04: Adapter 1
05:01:04:   Video Adapter: NVIDIA GeForce GTX 760
05:01:04:   Video Adapter Dedicated Video Memory: 4223336448
05:01:04:   Video Adapter Shared System Memory: 3967453184
05:01:04:   Video Adapter Output 1: pos={0, 0}, size={1440, 900}, attached=true
05:01:04:   Video Adapter Output 2: pos={-1440, 0}, size={1440, 900}, attached=true
05:01:04: =====Stream Start: 2014-05-20, 05:01:04===============================================
05:01:04:   Multithreaded optimizations: On
05:01:04:   Base resolution: 1440x900
05:01:04:   Output resolution: 1440x900
05:01:04: ------------------------------------------
05:01:04: Loading up D3D10 on NVIDIA GeForce GTX 760 (Adapter 1)...
05:01:04: ------------------------------------------
05:01:04: Audio Format: 48000 Hz
05:01:04: ------------------------------------------
05:01:04: Audio Channels: 2 Ch
05:01:04: Playback device Default
05:01:04: ------------------------------------------
05:01:04: Using desktop audio input: Speakers (Realtek High Definition Audio)
05:01:04: Global Audio time adjust: 0
05:01:04: ------------------------------------------
05:01:04: Audio Encoding: AAC
05:01:04:     bitrate: 128
05:01:04: Using graphics capture
05:01:04: Trying to hook process: Smite.exe
05:01:04: Scene buffering time set to 700
05:01:04: ------------------------------------------
05:01:04: Video Encoding: x264
05:01:04:     fps: 30
05:01:04:     width: 1440, height: 900
05:01:04:     preset: veryfast
05:01:04:     profile: high
05:01:04:     keyint: 60
05:01:04:     CBR: yes
05:01:04:     CFR: yes
05:01:04:     max bitrate: 3000
05:01:04:     buffer size: 3000
05:01:04: ------------------------------------------
05:01:24: Total frames encoded: 564, total frames duplicated: 38 (6.74%)
05:01:24: Total frames rendered: 539, number of late frames: 4 (0.74%) (it's okay for some frames to be late)
05:01:24: 
05:01:24: Profiler time results:
05:01:24: 
05:01:24: ==============================================================
05:01:24: video thread frame - [100%] [avg time: 3.149 ms] [children: 4.03%] [unaccounted: 96%]
05:01:24: | scene->Preprocess - [0.0318%] [avg time: 0.001 ms]
05:01:24: | GPU download and conversion - [4%] [avg time: 0.126 ms] [children: 3.18%] [unaccounted: 0.826%]
05:01:24: | | flush - [1.94%] [avg time: 0.061 ms]
05:01:24: | | CopyResource - [0.794%] [avg time: 0.025 ms]
05:01:24: | | conversion to 4:2:0 - [0.445%] [avg time: 0.014 ms]
05:01:24: Convert444Threads - [100%] [avg time: 0.637 ms] [children: 99.5%] [unaccounted: 0.471%]
05:01:24: | Convert444toNV12 - [99.5%] [avg time: 0.634 ms]
05:01:24: encoder thread frame - [100%] [avg time: 1.098 ms] [children: 0.0911%] [unaccounted: 99.9%]
05:01:24: | sending stuff out - [0.0911%] [avg time: 0.001 ms]
05:01:24: ==============================================================
05:01:24: 
05:01:24: 
05:01:24: Profiler CPU results:
05:01:24: 
05:01:24: ==============================================================
05:01:24: video thread frame - [cpu time: avg 0.202 ms, total 109.2 ms] [avg calls per frame: 1]
05:01:24: | scene->Preprocess - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
05:01:24: | GPU download and conversion - [cpu time: avg 0.028 ms, total 15.6 ms] [avg calls per frame: 1]
05:01:24: | | flush - [cpu time: avg 0.028 ms, total 15.6 ms] [avg calls per frame: 1]
05:01:24: | | CopyResource - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
05:01:24: | | conversion to 4:2:0 - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
05:01:24: Convert444Threads - [cpu time: avg 0.318 ms, total 327.601 ms] [avg calls per frame: 2]
05:01:24: | Convert444toNV12 - [cpu time: avg 0.318 ms, total 327.601 ms] [avg calls per frame: 2]
05:01:24: encoder thread frame - [cpu time: avg 0.402 ms, total 218.401 ms] [avg calls per frame: 1]
05:01:24: | sending stuff out - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
05:01:24: ==============================================================
05:01:24: 
05:01:24: =====Stream End: 2014-05-20, 05:01:24=================================================


Last game capture log:
2014-05-20, 05:01:04: we're booting up: 
05:01:04: CaptureThread: attached to process Smite.exe
05:01:04: D3D9 Present
05:01:04: DXGI Present
05:01:05: NV Capture available
05:01:05: FBO available
05:01:05: GL Present
05:01:05: (half life scientist) everything..  seems to be in order

 

[Lain]

Yea, something strange is going on here, and it feels like there's something interfering. Some outside program you have on your computer, like another capture program, a program that displays custom in-game overlays (like teamspeak/mumble), or video card utilities. Do you by any chance have anything like that running? This is really weird, and I want to know what's causing it as much as you do.

 

[Vorous]

Thanks for the response! Gave me some hope as I did indeed have a number of those things running (Mumble overlay, Steam, NVIDIA Experience), but after disabling them all there is still just a black screen. I also remember Mumble's overlay being present in the scene and not causing problems in the past. I have Bandicam installed but not running, is it possible that just its installation is interfering?

 

[theNomad]

I'm having the same issue. I've updated my Nvidia GT 650 and read through Jims laptop 3D etc thread. Nothing still.

 

[Lain]

Sometimes having them installed can interfere, and they usually have some service active to put their own hooks in to libraries regardless of whether their program is active. Which one is doing that however I don't quite know.

Usually all you need to do is deactivate the windows service module that's running, you don't typically need to uninstall them or anything. Those service modules are usually what causes it to occur.

 

[Vorous]

Success! Uninstalling both D3DGear and Bandicam seems to have done the trick. As I uninstalled Bandicam first without any results, it may have been just D3DGear that was causing a problem, or it may have been the interaction between the two of them together with OBS. Either way, game capture again works! I hope this may help you with your problem, theNomad.

Thanks for the good advice, Jim. I've attached a copy of my log now that it's working, in case it helps reveal anything useful for future diagnosis of this problem.