On Sat, Jan 08, 2011 at 04:27:47PM -0900, rogerx.oss at gmail.com wrote: >On Sat, Jan 08, 2011 at 02:41:55PM -0900, Roger wrote: >> >>Just a ping here concerning the "nVidia Corporation G73 [GeForce 7600 GS]" and >>AGP issues. >> >> >>I still have to use agpmode=0 (aka kernel parameter nouveau.agpmode=0) to >>avoid kernel (framebuffer) freezes when loading drm/nouveau drivers. >> >> >>My next task will be to get KDB working to hopefully get a backtrace. Or is it >>futile at this point? Using KGDB, I think stalls the serial bus and, the info >>I earlier collected showed nothing relevant to this or to any indication of a >>kernel panic. > >(I meant KDUMP instead of KDB within the above paragraph.) > > >Interesting. I've recompiled this kernel to include the drm & nouveau as >modules. (I also added KDUMP along with RELOC.) The modules seem to be >loading and activating framebuffer console mode now without freezing, while >also enabling AGP mode. > >I was anticipating to use/activate KDUMP dump kernel after loading the drm & >nouveau modules which trigger the freeze when AGP is enabled. > >Seems like this bug is halfway worked out? I've gone back to recent stable kernel release 2.6.37 that I just installed, and verify that compiling the in-kernel nouveau as module does allow AGP mode to work. I do believe however, 2.6.37 statically linked nouveau driver will freeze framebuffer when trying to use AGP mode. To me, this is really starting to sound more like a timing issue between the "Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge" and nouveau? (FYI: drm is still being compiled statically. Just nouveau requires to be compiled as module to evade AGP issues.) -- Roger http://rogerx.freeshell.org/
