Emulator Issues #8379
closed
Periodic slowdowns using Direct3D
0%
Description
Game Name?
New Super Mario Bros. Wii
MySims Kingdom
Game ID?
SMNE01
RSHE69
What's the problem? Describe what went wrong in few words.
When using the Direct3D graphics backend, the game will cycle between slowing down to approximately half-speed and running at normal speed. The change occurs at about every four beats of the intro music in Mario.
What did you expect to happen instead?
Barring the usual slowdowns due to a slow computer, the game should run as fast as possible.
What steps will reproduce the problem?
- Start the game using Direct3D as the graphics backend.
- Watch for a bit.
Dolphin 3.5 and 3.5-367 are old versions of Dolphin that have
known issues and bugs, so don't report issues about them and test the
latest Dolphin version first.
Which versions of Dolphin did you test on?
Dolphin 4.0-5856
Dolphin 4.0.2 (stable)
Does using an older version of Dolphin solve your issue? If yes, which
versions of Dolphin used to work?
No older versions tested. (I don't currently have any older versions installed.)
What are your PC specifications? (including, but not limited to: Operating
System, CPU and GPU)
Core 2 Quad 2.4 GHz
AMD Radeon HD 7750, 2 GB GDDR3
Windows 7, Direct3D graphics backend
Is there any other relevant information? (e.g. logs, screenshots,
configuration files)
OpenGL works fine.
Updated by JMC4789 about 9 years ago
This is probably a consequence of vsync or something. I think this is more suited to the forums rather than an issue. There isn't enough info to do anything, and your computer is slow enough that it makes sense that this could happen.
I'll leave this open for now in case there's any kind of information that can be added. But considering I just tested the games and it worked fine on a faster computer, I'm pretty sure the issue is the game can't manage full speed all the time and vsync takes it down to 30 fps.
Updated by sirwinstoncat5 about 9 years ago
Wow, I'm an idiot-it was vsync causing the issue. Thanks for pointing that out. Just curious-vsync should force the FPS to lock at either 30 or 60 (for a 60 hz monitor), right? Mine seemed to bounce around a bunch when I tried this.
Updated by JMC4789 about 9 years ago
- Status changed from New to Invalid
If you lose full speed (even to 59 fps) weird things will happen with vsync on. Anyway, glad we could narrow down the behavior.