Bug Report OBS freezing, Win 7 x64, Optimus

[kalstras]

Asus N75SF notebook with Optimus GeForce 555M. I capture BF4 with Dxtory and use virutal camera for output into the OBS. Yesterday it was fine, today I can not start broadcast, it freezes when I press 'start streaming'. Windows 7 x64.

What has changed between yesterday and today is that I have changed drivers from latest WHQL to latest beta drivers, which has given me increase in framerate for BF4 so I would not want to reinstall them. But I will if needed to make OBS work again.

Spoiler

OBS has encountered an unhandled exception and has terminated. If you are able to
reproduce this crash, please submit this crash report on the forums at
http://www.obsproject.com/ - include the contents of this crash log and the
minidump .dmp file (if available) as well as your regular OBS log files and
a description of what you were doing at the time of the crash.

This crash appears to have occured in the 'c:\windows\system32\kernelbase.dll' module.

**** UNHANDLED EXCEPTION: 80000003
Fault address: 000007FEFDDD3CA2 (c:\windows\system32\kernelbase.dll)
OBS version: Open Broadcaster Software v0.571b
Windows version: 6.1 (Build 7601) Service Pack 1
CPU: Intel(R) Core(TM) i7-2630QM CPU @ 2.00GHz

Crashing thread stack trace:
Stack EIP Arg0 Arg1 Arg2 Arg3 Address
000000000031EE88 000007FEFDDD3CA2 000007FEEB905810 0000000000007530 000000000031EDE8 000000000031F4E0 kernelbase.dll!0x7fefddd3ca2
000000000031EE90 000007FEEB77D2C3 0000000000000001 000007FEFBDD100D 000000000228E410 0000000000050A5A obsapi.dll!OSTerminateThread+0x33
000000000031EEC0 000000013F9FE7BB 0000000000000001 000000000031F4E0 0000000000431000 000000000031EF70 obs.exe!OBS::Stop+0x6b
000000000031EF50 000000013F9F974F 000000013F9D0000 0000000000000001 000000000031F4E0 0000000000431000 obs.exe!OBS::~OBS+0x3f
000000000031F3B0 000000013F9F96E4 00000000033B097F 00000000033B097F 000007FEFDE22164 0000000000431000 obs.exe!OBS::`scalar deleting destructor'+0x14
000000000031F3E0 000000013F9F24BB 0000000000000000 0000000000000000 000000013F9D0000 0000000000000000 obs.exe!WinMain+0xa0b
000000000031F980 000000013FA68B90 0000000000000000 0000000000000000 0000000000000000 0000000000000000 obs.exe!strstr+0x1ac
000000000031FA30 0000000077B0652D 0000000000000000 0000000000000000 0000000000000000 0000000000000000 kernel32.dll!0x77b0652d
000000000031FA60 0000000077C3C541 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ntdll.dll!0x77c3c541

A minidump was saved to C:\Users\kalstrams\AppData\Roaming\OBS\crashDumps\OBSCrashDump2013-10-04_3.dmp.
Please include this file when posting a crash report.

List of loaded modules:
Base Address Module

 

[dodgepong]

Can you post your normal log, too? viewtopic.php?f=6&t=97

Also can you upload the .dmp file somewhere for people to look at?

 

[kalstras]

There you go. In archive you will find full log, and minidump related log and .dmp file.

 

[kalstras]

Got it to work by selecting another GPU in OBS settings. For some mysterious reason, there were two NVIDIA GeForce GT 555M adapters under Settings->Video->Adapter, and when I select another one, it started to work.

It would be nice if someone explains me what that means so I know what to avoid/how to deal with it in future.