G80 Emulator on Linux

[bkoz]

Has anyone got the G80 emulator to work on Linux? The release notes say to add ' Option "RegistryDwords" "8F773984=7" ' to the Screen or Device section of the xorg.conf file. Running glxinfo does report the 97.42 driver and GL 2.1.0support but no G80 extenstions (GL_EXT_gpu_shader4, etc) are advertised.

I'm running suse 10.1 on an ia32 platform with a Quadro FX1500M. I also tried it on an FX1400 system.

Thanks,
Bob

yoda-105>cat nvidia-bug-report.log | grep -i Registry
/proc/driver/nvidia/registry
rm -f -f nv.o nv-vm.o os-agp.o os-interface.o os-registry.o nv-i2c.o nv.o nv
-vm.o os-agp.o os-interface.o os-registry.o nv-i2c.o nvidia.mod.o
#s" -D"KBUILD_BASENAME=KBUILD_STR(os_registry)" -D"KBUILD_MODNAME=KBUILD_ST
tmp_os-registry.o /tmp/selfgz3867/NVIDIA-Linux-x86-1.0-9742-pkg1/usr/src/nv/
os-registry.c
/nv/os-registry.c:14:
/nv/os-registry.c:14:
7/NVIDIA-Linux-x86-1.0-9742-pkg1/usr/src/nv/os-registry.o /tmp/selfgz3867/NV
(**) NVIDIA(0): Option "RegistryDwords" "8F773984=7"
Option "RegistryDwords" "8F773984=7"
(**) NVIDIA(0): Option "RegistryDwords" "8F773984=7"
Option "RegistryDwords" "8F773984=7"
yoda-106>

[dominik95]

I got the same problem any help would be really appreciated.

OS: Gentoo http://www.gentoo.org
Linux gpu 2.6.18-gentoo-r6 #1 SMP Wed Jan 17 14:42:53 CET 2007 i686 Intel(R) Pentium(R) 4 CPU 3.60GHz GenuineIntel GNU/Linux

here's part of Xorg.0.log :
(**) NVIDIA(0): Option "RegistryDwords" "8F773984=7"
(**) NVIDIA(0): Option "SLI" "Auto"
(**) NVIDIA(0): Enabling RENDER acceleration
(**) NVIDIA(0): NVIDIA SLI auto-select rendering option.
(WW) NVIDIA(0): DamageEvents are not currently compatible with SLI. Disabling
(WW) NVIDIA(0): DamageEvents.
(II) NVIDIA(0): NVIDIA SLI enabled.
(II) NVIDIA(0): NVIDIA GPU Quadro FX 1400 at PCI:1:0:0 (GPU-0)

drivers version tried :
the one specified here : http://developer.download.nvidia.com...ease_notes.pdf
and version 97.46

cards are :
01:00.0 VGA compatible controller: nVidia Corporation NV41GL [Quadro FX 1400] (rev a2)
02:00.0 VGA compatible controller: nVidia Corporation NV41GL [Quadro FX 1400] (rev a2)

symptom :
call to glCreateShader ( GL_GEOMETRY_SHADER_EXT ); or the ARB version gives an error
glxinfo does display version 2.1.0 but does not display the GL_EXT_geometry_shader4 extension.
the right headers are included and the right .so are used for linking.

thank you
dom

[michael.bauer]

Maybe Option "NvEmulate" or something similar in xorg.conf helps. <<Option "RegistryDwords" "8F773984=7">> enables GL_EXT_gpu_shader4 and GL_EXT_geometry_shader4 etc. for G80 hardware.

[dominik95]

Thank you for your reply, i will try that as soon as I can and post the results here.

by the way, the mentionned pdf does not specify that, should be added.

thank you.

dom

[dominik95]

Trying to set NvEmulate gives :

(WW) NVIDIA(0): Option "NvEmulate" is not used

and the same invalid operation from OpenGL ....

I was just wondering if someone with an access to the dev forums can ask
the question about this ?

thank you
dom

[dominik95]

Originally Posted by michael.bauer

"RegistryDwords" "8F773984=7">> enables GL_EXT_gpu_shader4 and GL_EXT_geometry_shader4 etc. for G80 hardware.

As far as i understood, the extensions are available in software when using this feature on <g80 :

Originally Posted by http://developer.download.nvidia.com/opengl/glsl/glsl_release_notes.pdf

On pre-GeForce 8 series hardware, this also requires enabling feature set emulation, and the newer feature will result in software emulation. These GeForce 8 series enhancements are considered to be in beta form, and once sufficient testing has completed, they will be advertised by default like the rest of GLSL.

thank you
dom

[dominik95]

I won't be abble to test that before few days.

I ask the technical support and they reply that I should try :

Option "RegistryDwords" "8F773984=7; NvEmulate=50"

regards,
dom