TFT display jitters/trembles (GeForce Go 7600 256MB)
 

Hi,

On my Ubuntu 6.10 notebook (1400x1050, 60 Hz) the display flickers every now and then when I use the "nvidia" driver (in contrast the preinstalled "nv" default driver works fine). The entire screen contents seem to move a pixel row down and right and back in a split second once a half minute.

Maybe it's just a simple sync problem?
Unfortunately I could't find exactly the same issue in this forum, not to mention a solution.

Attachment 21868
Attachment 21869

GeForce Go 7600 256MB

thanks in advance!

TFT display jitters/trembles (GeForce Go 7600 256MB)
 

Bug report:
Attachment 21929

Re: TFT display jitters/trembles (GeForce Go 7600 256MB)
 

Does this problem persist with the 1.0-9629 or 1.0-9742 drivers?
Have you verified that you're using the latest BIOS?

Thanks,
Lonni

Re: TFT display jitters/trembles (GeForce Go 7600 256MB)
 

Hi Lonni,

Thank you for your suggestions, usually I install the drivers that are available in the Ubuntu repositories.

Now I tried to install the latest stable driver as you suggested (1.0-9629). But I get the error: "API mismatch: the NVIDIA kernel module has the version 1.0-7184, but this X module has the version 1.0-9629. ..." and Xorg refuses to start.

My BIOS is the latest version:
PhoenixBIOS
BIOS Version 11XE
MICOM Version 11XE

-- according to the Samsung download page for R65 this is the recent version.

PS: Where may I verify the MD5 sum of the driver installer?

Re: TFT display jitters/trembles (GeForce Go 7600 256MB)
 

See:
http://www.nvnews.net/vbulletin/showthread.php?t=72490

Re: TFT display jitters/trembles (GeForce Go 7600 256MB)
 

Now I tried both the
NVIDIA-Linux-x86-1.0-9629-pkg1.run
and
NVIDIA-Linux-x86-1.0-9742-pkg1.run
drivers but I was not able to install the drivers properly:

NVIDIA-Linux-x86-1.0-9629-pkg1.run:
When I did it worked, but unfortunately my Compiz didn't work any more (it was only white - the entire screen/cube), and refresh rate was 50 Hz despite 60 Hz :(

NVIDIA-Linux-x86-1.0-9742-pkg1.run:
The installer says
Why wouldn't those drivers install smoothly?
Would'nt it be more easily to provide DEB-files instead of those installers which bypass the package manager?

I despair of it...
Maybe it would be just a small entry in /etc/X11/xorg.conf which solved the issue. Is there a way to verify whether the graphics card is defective?

PS: How may I verify the MD5 checksum of those files?

Re: TFT display jitters/trembles (GeForce Go 7600 256MB)
 

I'd need to see the installer log to determine why the driver didn't install.

Thanks,
Lonni

Re: TFT display jitters/trembles (GeForce Go 7600 256MB)
 

Installer log:
Attachment 21960

Re: TFT display jitters/trembles (GeForce Go 7600 256MB)
 

Hi,

Now NVIDIA-Linux-x86-1.0-9629-pkg1.run runs pretty fine. Glxgears was very slow when I installed this driver for the first time. But now, after installing xserver-xorg-dev (1:1.1.1-0ubuntu12) glxgears runs smoothly :D .
EDIT3: I uninstalled nvidia-glx as claimed in http://www.nvnews.net/vbulletin/showthread.php?t=72490: Now Glxgears is very very slow.

Unfortunately Compiz doesn't work with 1.0-9629, don't know why (Compiz doesn't tell me anything). The Compiz window borders just aren't loaded.
Sadly when I'm not able to start Compiz I won't see those nasty jitters any more. Maybe you could support me get Compiz up and running?

I tried the following versions:

• 0.0.13.38-0ubuntu3
• 0.3.2 from the freedesktop.org website

They behaved the same.

EDIT: How may I prevent the "nvidia" module from being loaded, I need to do rmmod nvidia every time I boot. I tried adding it to /etc/modprobe.d/blacklist but the system didn't boot any more with this entry. [SOLVED]

EDIT2: no textures any more in Neverball with 1.0-9629

thx

Re: TFT display jitters/trembles (GeForce Go 7600 256MB)