Hi all…I have a problem.

Just installed Ubuntu 7.10 gutsy gibbon (amd-64) and houdini-9.0.794-linux_x86_64_gcc4.1

I have an nvidia quadro fx go 1400 graphics card.

After installation I ran the restricted driver manager and installed nvidia drivers.

Under screen and graphics preferences I noticed that there was no nvidia quadro cards listed in the choose graphics card menu, only geforce options

I have disabled all desktop visual effects but am experiencing slow update behaviour and general sluggishness in the Houdini UI.

Glxgears reports around 12682.354 FPS however, I've had that up to around 17000.000 on a previously installed gentoo OS. (which ran Houdini 8 beautifully).

What could be causing the sluggish graphics performance? Wrong driver automatically installed?

Cheers,

JT

1 sudo apt-get install nvidia-glx-new

2 sudo nvidia-glx-config enable

3 sudo gedit /usr/share/applications/NVIDIA-Settings.desktop
add:

Name=NVIDIA Settings
Comment=NVIDIA Settings
Exec=nvidia-settings
Icon=
Terminal=false
Type=Application
Categories=Application;System;

4 restart

: )

Hi,

Still no luck. I already have the most up to date drivers!

Currently, performance is much smooyher in windows! How can this be?

Any ideas would be great. Driving me mad.

JT

Are you using a AMD Athlon XP cpu ?

I had the same problem. The OpenGL viewer wasnt moving smooth in Linux. I tried many driver versions, always same problem with H9.

Finally I have changed my machine, now Intel Quad. Surprisingly, all is very very smooth, Houdini in Linux is superb.

Same Houdini, same driver, same Quadro 3500, same Ubuntu … different cpu, different motherboard.

By the way, I hope what the Houdini developers start to give more thread power to H9, I know that is a difficult task but I have my hopes pinned on this issue.

I'm using Ubuntu 7.10 with a Quadro card, and dual AMD Opterons. My OpenGL performance is superb. Far better then Windows XP 32 on the same machine.

Don't use the restricted drivers manager! Disable it, and never touch it again.

Download Envy, uninstall your current driver, and then install your nvidia drivers again.

The steps xxbd gave also work fine if you'd rather do it manually. You can at least try older, possibly more stable drivers this way. (which you should be doing)

edit: I forgot to mention. You should also edit your xorg.conf quite a bit. I comment out all the lines refrencing a pen or Tablet, add “Option” “CIOverlay” “on” to my nvidia device. You will also need to disable “Composite”, which is located at the bottom of your xorg.conf, and it's enabled by default.

There's other options you can choose to use or not. RenderAccel for example, speeds my performance up, but it doesn't work the same for everyone.

Ubuntu also throws a bunch of useless “AddRGBGLXvisual” junk that I delete, but thats personal prefrence I guess.

If you're not familiar with editing xorg.conf I would spend some time on google before jumping in. You can really mess things up.

Alanw
You can at least try older, possibly more stable drivers this way. (which you should be doing)

What driver version are you using ?

vmur

Alanw
You can at least try older, possibly more stable drivers this way. (which you should be doing)

What driver version are you using ?

Version: 100.14.19 works good for me.

Alanw
You will also need to disable “Composite”, which is located at the bottom of your xorg.conf, and it's enabled by default.

That is the more important option, add at last of /etc/X11/xorg.conf file:
Section “Extensions”
Option “Composite” “Disable”
EndSection

If you hate touch system configuration files, can use that command as root:
nvidia-xconfig –no-composite

For example, prev to make that modification in my machine, I get 18000 FPS in glxgears, after 29000 FPS.

Alan, I use the same driver version.