Possibly-related video problems

ZIYAD A. M. AL-BATLY zamb at saudi.net.sa
Mon Jul 18 16:01:33 UTC 2005

On Mon, 2005-07-18 at 11:24 -0400, Ben Novack wrote:
> I'm encountering two problems that may or may not be related:
> First, I have a GeForce 440MX video card, and I've installed the
> nvidia-glx driver, but when GL content - screensavers, specifically -
> should be running, I just have a black screen.
> Also, video playback in Totem is incredibly pixellated, especially
> when I go fullscreen. I'm not playing especially small video; these
> are DVDs of 4:3 TV episodes. Is this actually a fixable problem, or is
> Totem's resizing aptitude weaker than the proprietary players (like
> Apple's DVD Player and WMP) I'm used to? I suspect there's at least
> some level of fixability to it, because even when not fullscreened,
> things look more pixellated than they should.
> Thanks,
> ---Ben
You most likely still using the (open source) "nv" driver, not NVIDIA's
closed source "nvidia" driver (even though you installed the package
"nvidia-glx")!  You could conform this by running:
        glxinfo | grep direct
and see if the answer is "Yes".

To fix this run the following and choose "nvidia" when prompted "Select
the desired X server driver":
        sudo dpkg-reconfigure xserver-xorg
If you don't want to miss with the other options and you just want to
change the driver:  Edit the file "/etc/X11/xorg.conf" and search for
‘"nv"’ and change it to ‘"nvidia"’.

You need to restart GDM for the change to take effect.  Either reboot
your system (preferred solution), or log out of GNOME/KDE and run from a
console "sudo /etc/init.d/gdm restart".

See if that fixes your problem.  If not, just repost here again.

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