On Sat, 2009-04-18 at 09:21 -0400, GS Hunt wrote: > Michel Dänzer wrote: > > On Fri, 2009-04-17 at 22:25 -0400, GS Hunt wrote: > >> Please bear with me, I am not a developer. > >> > >> I am using an RS740 chip HS2100IGP integrated Radeon Video Card. > >> > >> It uses the R300 driver, (support added in the 2.6.28 kernel by Alex > >> Deucher) > >> > >> 3D rendering is normal in Mesa 7.2, but is slow in subsequent versions. > >> > >> CPU useage goes to 100%, and 3D framerates drop dramtically. > >> > >> glxinfo shows: > >> > >> Direct rendering: YES > >> OpenGL renderer string: Mesa DRI R300 20060815 NO-TCL > >> > >> > >> This commit is good: > >> > >> http://lists.freedesktop.org/archives/mesa-commit/2008-September/004140.html > >> > >> > >> This commit is the earliest which best exhibits the problem: > >> > >> http://lists.freedesktop.org/archives/mesa-commit/2008-September/004354.html > > > > Does this patch fix the problem? > > > > > > diff --git a/src/mesa/drivers/dri/r300/r300_context.c > > b/src/mesa/drivers/dri/r300/r300_context.c > > index 12bee1a..4de95f1 100644 > > --- a/src/mesa/drivers/dri/r300/r300_context.c > > +++ b/src/mesa/drivers/dri/r300/r300_context.c > > @@ -374,7 +374,6 @@ GLboolean r300CreateContext(const __GLcontextModes * > > glVisual, > > ctx->Const.FragmentProgram.MaxNativeTexIndirections = > > PFS_MAX_TEX_INDIRECT; > > ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0; /* and these > > are?? */ > > - ctx->VertexProgram._MaintainTnlProgram = GL_TRUE; > > ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE; > > > > driInitExtensions(ctx, card_extensions, GL_TRUE); > > @@ -421,7 +420,8 @@ GLboolean r300CreateContext(const __GLcontextModes * > > glVisual, > > } > > TCL_FALLBACK(r300->radeon.glCtx, > > RADEON_TCL_FALLBACK_TCL_DISABLE, 1); > > - } > > + } else > > + ctx->VertexProgram._MaintainTnlProgram = GL_TRUE; > > > > return GL_TRUE; > > } > > > > > > YES. > > CPU usage normal, FPS are better.
Maciej Cencora mentioned on IRC that he's seeing GPU lockups with this change, so I'm not pushing it for now - decreased performance is probably the lesser evil than lockups... -- Earthling Michel Dänzer | http://www.vmware.com Libre software enthusiast | Debian, X and DRI developer ------------------------------------------------------------------------------ Stay on top of everything new and different, both inside and around Java (TM) technology - register by April 22, and save $200 on the JavaOne (SM) conference, June 2-5, 2009, San Francisco. 300 plus technical and hands-on sessions. Register today. Use priority code J9JMT32. http://p.sf.net/sfu/p _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
