New AMD/ATI drivers bug identified: workaround in r2015

[andutrache]

Shit, this may be the reason why Fate/Zero seems to be capped at 20 when the CPU usage aren't even that high.

I second you andru, AMD suck.

Try using Only GE graphics, for me Fate/Zero works at 30 fps (which is the max with Only GE) with occasional dips to 20 fps(when there are many people on screen/ many enemies etc...). Without Only GE graphics it works at 60 fps with occasional dips to like 40 fps.

Try these settings:
[ ] Disable VBO (automatically disabled if not supported)
[X] Only GE graphics (not recommended for homebrew)
[X] Use vertex cache [may not be necessary for Nvidia but idk/ on ATI it gives a huge fps boost]
[X] Use shaders (experimental)
[ ] Use a Geometry Shader for 2D rendering (only relevant when using shaders)
[X] Disable UBO (automatically disabled if not supported, only relevant when using shaders) [may not be necessary for Nvidia but idk]
[ ] Enable VAO (only relevant when using shaders and vertex cache) [never enable it causes corruption in dungeons]
[X] Enable saving GE screen to Textures instead of Memory
[ ] Enable decoding of indexed textures (using CLUT) in shader (only relevant when using shaders)
[X] Enable dynamic shader generation (only relevant when using shaders, recommended for AMD/ATI) [not necessary for Nvidia but might give 1/2 fps boost]
[ ] Enable the shader implementation for the "Stencil Test" (more accurate but slower)
[ ] Enable the shader implementation for the "Color Mask" (more accurate but slower)

Set compiler Method Size to 50 to avoid out of memory errors.
For me after like 2 hours of play or so the game will freeze so save often.