F11 Java Graphics issue - Solved

[Ken Bass]

On 06/19/2009 04:11 PM, Ken Bass wrote:
> I just installed a fresh Fedora 11. I am running the NVIDIA driver
> (Twinview mode, not Xinerama), and an application that worked in the
> past that uses graphics (draws circles, arrows) now is unusable. When
> trying to interact with the graphics (drag, etc), the Java task shoots
> up to 60-90%. The larger I make the window (regardless of the same
> amount of graphics), the slower Java + xorg is. I went so far as to swap
> video cards without change (from Geforce 7 to Geforce 8 series).
>
> All this stuff worked fairly snappy under Fedora 10 under VMware. For
> Fedora 11, I have installed natively, and the native environment is dual
> headed. Does anyone have any pointers on where to look? I can run the
> glxgears program and get 15000fps or so.
>
>    

Adding '-Dsun.java2d.opengl=True' results in snappy
performance. Apparently since Java 5 (1.5) OpenGL acceleration is turned off by default.
See http://java.sun.com/j2se/1.5.0/docs/guide/2d/new_features.html#ogl