Question / Help Was streaming fine, now black screen for game capture

[stable]

I had been streaming fine but now I when I try to game capture I get a black screen.

9:07:25: CUDA loaded successfully
19:07:25: 1 CUDA capable devices found
19:07:25: [ GPU #0 - < GeForce GTX 760 > has Compute SM 3.0, NVENC Available ]
19:11:30: Open Broadcaster Software v0.613b - 64bit (　^ω^)
19:11:30: -------------------------------
19:11:30: CPU Name: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz
19:11:30: CPU Speed: 3400MHz
19:11:30: Physical Memory:  16298MB Total, 10430MB Free
19:11:30: stepping id: 3, model 60, family 6, type 0, extmodel 1, extfamily 0, HTT 1, logical cores 8, total cores 4
19:11:30: monitor 1: pos={-1600, 58}, size={1600, 900}
19:11:30: monitor 2: pos={0, 0}, size={1920, 1080}
19:11:30: Windows Version: 6.1 Build 7601 S
19:11:30: Aero is Enabled
19:11:30: -------------------------------
19:11:30: OBS Modules:
19:11:30: Base Address  Module
19:11:30: 000000003FE20000 OBS.exe
19:11:30: 00000000D3700000 OBSApi.dll
19:11:30: 00000000F3300000 DShowPlugin.dll
19:11:30: 00000000EE5C0000 GraphicsCapture.dll
19:11:30: 00000000ECF30000 NoiseGate.dll
19:11:30: 00000000ECD10000 PSVPlugin.dll
19:11:30: ------------------------------------------
19:11:30: Adapter 1
19:11:30:  Video Adapter: Intel(R) HD Graphics 4600
19:11:30:  Video Adapter Dedicated Video Memory: 67108864
19:11:30:  Video Adapter Shared System Memory: 1711276032
19:11:30:  Video Adapter Output 1: pos={0, 0}, size={1920, 1080}, attached=true
19:11:30: ------------------------------------------
19:11:30: Adapter 2
19:11:30:  Video Adapter: NVIDIA GeForce GTX 760
19:11:30:  Video Adapter Dedicated Video Memory: 1552613376
19:11:30:  Video Adapter Shared System Memory: 2684678144
19:11:30:  Video Adapter Output 1: pos={-1600, 58}, size={1600, 900}, attached=true
19:11:30: =====Stream Start: 2014-04-03, 19:11:30===============================================
19:11:30:  Multithreaded optimizations: On
19:11:30:  Base resolution: 1920x1080
19:11:30:  Output resolution: 1920x1080
19:11:30: ------------------------------------------
19:11:30: Loading up D3D10 on Intel(R) HD Graphics 4600 (Adapter 1)...
19:11:30: ------------------------------------------
19:11:30: Audio Format: 44100 Hz
19:11:30: ------------------------------------------
19:11:30: Audio Channels: 2 Ch
19:11:30: Playback device Default
19:11:30: ------------------------------------------
19:11:30: Using desktop audio input: STD HDMI TV (Intel(R) Display Audio)
19:11:30: ------------------------------------------
19:11:30: Using auxilary audio input: Microphone (Realtek High Definition Audio)
19:11:30: ------------------------------------------
19:11:30: Audio Encoding: AAC
19:11:30:  bitrate: 160
19:11:30: Using graphics capture
19:11:30: Scene buffering time set to 400
19:11:30: ------------------------------------------
19:11:30: Video Encoding: x264
19:11:30:  fps: 30
19:11:30:  width: 1920, height: 1080
19:11:30:  preset: veryfast
19:11:30:  profile: main
19:11:30:  keyint: 60
19:11:30:  CBR: yes
19:11:30:  CFR: yes
19:11:30:  max bitrate: 3000
19:11:30:  buffer size: 3000
19:11:30: ------------------------------------------
19:11:30: SharedTexCapture hooked
19:11:30: Audio timestamp for device 'Microphone (Realtek High Definition Audio)' was behind target timestamp by 2578242
19:11:44: Total frames encoded: 424, total frames duplicated: 0 (0.00%)
19:11:44: Total frames rendered: 429, number of late frames: 0 (0.00%) (it's okay for some frames to be late)
19:11:44:
19:11:44: Profiler time results:
19:11:44:
19:11:44: ==============================================================
19:11:44: video thread frame - [100%] [avg time: 0.849 ms] [children: 8.24%] [unaccounted: 91.8%]
19:11:44: | scene->Preprocess - [0.118%] [avg time: 0.001 ms]
19:11:44: | GPU download and conversion - [8.13%] [avg time: 0.069 ms] [children: 6.71%] [unaccounted: 1.41%]
19:11:44: | | flush - [4.59%] [avg time: 0.039 ms]
19:11:44: | | CopyResource - [1.18%] [avg time: 0.01 ms]
19:11:44: | | conversion to 4:2:0 - [0.942%] [avg time: 0.008 ms]
19:11:44: Convert444Threads - [100%] [avg time: 2.106 ms] [children: 99.8%] [unaccounted: 0.19%]
19:11:44: | Convert444toNV12 - [99.8%] [avg time: 2.102 ms]
19:11:44: encoder thread frame - [100%] [avg time: 2.043 ms] [children: 0.0979%] [unaccounted: 99.9%]
19:11:44: | sending stuff out - [0.0979%] [avg time: 0.002 ms]
19:11:44: ==============================================================
19:11:44:
19:11:44:
19:11:44: Profiler CPU results:
19:11:44:
19:11:44: ==============================================================
19:11:44: video thread frame - [cpu time: avg 0.109 ms, total 46.8 ms] [avg calls per frame: 1]
19:11:44: | scene->Preprocess - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
19:11:44: | GPU download and conversion - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
19:11:44: | | flush - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
19:11:44: | | CopyResource - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
19:11:44: | | conversion to 4:2:0 - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
19:11:44: Convert444Threads - [cpu time: avg 1.907 ms, total 1575.61 ms] [avg calls per frame: 2]
19:11:44: | Convert444toNV12 - [cpu time: avg 1.907 ms, total 1575.61 ms] [avg calls per frame: 2]
19:11:44: encoder thread frame - [cpu time: avg 1.514 ms, total 624.004 ms] [avg calls per frame: 1]
19:11:44: | sending stuff out - [cpu time: avg 0.037 ms, total 15.6 ms] [avg calls per frame: 1]
19:11:44: ==============================================================
19:11:44:
19:11:44: =====Stream End: 2014-04-03, 19:11:44=================================================
19:12:26: =====Stream Start: 2014-04-03, 19:12:26===============================================
19:12:26:  Multithreaded optimizations: On
19:12:26:  Base resolution: 1920x1080
19:12:26:  Output resolution: 1920x1080
19:12:26: ------------------------------------------
19:12:26: Loading up D3D10 on Intel(R) HD Graphics 4600 (Adapter 1)...
19:12:26: ------------------------------------------
19:12:26: Audio Format: 44100 Hz
19:12:26: ------------------------------------------
19:12:26: Audio Channels: 2 Ch
19:12:26: Playback device Default
19:12:26: ------------------------------------------
19:12:26: Using desktop audio input: STD HDMI TV (Intel(R) Display Audio)
19:12:26: ------------------------------------------
19:12:26: Using auxilary audio input: Microphone (Realtek High Definition Audio)
19:12:26: ------------------------------------------
19:12:26: Audio Encoding: AAC
19:12:26:  bitrate: 160
19:12:26: Using graphics capture
19:12:26: Scene buffering time set to 400
19:12:26: ------------------------------------------[code]

 

[Jack0r]

Hmm, the log is unfortunately not complete, missing the gamecapture log, etc.. But I think the problem might lie in the two Graphics chips you are using, similar to many laptop users.
I would think the game should run on the nvidia chip, not on the intel one, but one of your Monitors is connected to it (the 1080p one) and OBS is using it.
You probably have to set OBS to run on your NVIDIA High performance processor, this can be done in the nvidia control panel. If possible and unless you want to use quicksync I would maybe even deactivate the Intel GPU completely on a desktop system and connect both monitors to the nvidia.
Then your "Scene buffering time" is set to 400, that is an a bit older default value, change it to 700 (in the advanced settings of OBS). And finally if you keep having problems post us a full log please and/or check this post (although its Laptop related) :
https://obsproject.com/forum/threads/laptop-black-screen-when-capturing-read-here-first.5965/

 

[stable]

Thanks for your help, all is well now.