Awful performance after upgrading Ubuntu from Feisty to Gutsy

[taki]

I'm having some troubles with X since I upgraded Ubuntu. When I upgraded, I also recompiled the NVidia drivers (100.14.11, but I tried later with 100.14.19 and had the same problem) to bring them up to speed. Not sure what the cause is, but now X uses 100% of the CPU when doing anything other than idling, and performs really, really slowly. It looks like it's not passing anything to the graphics card.

When I try and run nvidia-settings, I get an error message saying "You do not appear to be using the NVIDIA X driver. Please edit your X configuration file (just run `nvidia-xconfig` as root), and restart the X server."

I've attached my xorg.conf, latest Xorg.0.log and the output of glxinfo. I notice in glxinfo it says that direct rendering is disabled, but when I try setting the environment variable LIBGL_DEBUG to verbose and run glxinfo again, I don't get any more information.

Any ideas? TIA.

[netllama]

The key here is the warning:
"You do not appear to be using the NVIDIA X driver."

You're clearly not using the nvidia driver. See the driver README & forum sticky posts for more information.

[taki]

Originally Posted by netllama

The key here is the warning:
"You do not appear to be using the NVIDIA X driver."

You're clearly not using the nvidia driver.

That's what I originally thought, too, but:
From the xorg.conf:

...
Section "Device"
    Identifier     "Videocard0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 8800 GTS"
EndSection
...

From the Xorg.0.log:

...
(II) Loading /usr/lib/xorg/modules/drivers//nvidia_drv.so
(II) Module nvidia: vendor="NVIDIA Corporation"
        compiled for 4.0.2, module version = 1.0.0
        Module class: X.Org Video Driver
...
(II) NVIDIA(0): NVIDIA GPU GeForce 8800 GTS (G80) at PCI:5:0:0 (GPU-0)
(--) NVIDIA(0): Memory: 327680 kBytes
(--) NVIDIA(0): VideoBIOS: 60.80.0d.00.01
(II) NVIDIA(0): Detected PCI Express Link width: 16X
(--) NVIDIA(0): Interlaced video modes are supported on this GPU
(--) NVIDIA(0): Connected display device(s) on GeForce 8800 GTS at PCI:5:0:0:
(--) NVIDIA(0):     NVIDIA TV Encoder (TV-0)
(--) NVIDIA(0):     BenQ FP937s (DFP-1)
...

And also:

$ps -A | grep X
8512 tty7     00:00:37 Xorg
$sudo lsof -p 8512
...
Xorg    8512 root  mem    REG        3,3  1372296    1433750 /usr/lib/xorg/modules/drivers/nvidia_drv.so
...
$

And also:

$ lsmod | grep nvidia
nvidia               7250420  34
$

Are you 100% sure I'm not using the NVidia driver? If not, what do I need to change to use it? It looks to me like xorg.conf is configured correctly.

[Jouni76]

Seems that I have exactly the same problem, with upgraded Kubuntu 7.10 AMD64.

I use current realtime kernel, and there seems to be a problem with the kernel module compilation (for me at least). Driver package 100.14.19 does not display any errors during installation, but beta version installer 100.14.23 actually stops to kernel module compile error.

Can the Nvidia driver even be used with a realtime kernel? Or is there something buggy somewhere...?

[AaronP]

Make sure you're not running Xgl.

[manuelg]

For some reason, you have DRI loaded in your xorg.conf. Comment it out and see if it then works.

Section "Module"
Load "dbe"
Load "extmod"
Load "type1"
Load "freetype"
Load "glx"
# Load "dri" <-----<-----<-----<
EndSection

You may want to read the nvidia driver installation README, it's all in there. Also, you probably don't need the last section, since composite is enabled by default, I think.

Section "Extensions"
Option "Composite" "Enable"
EndSection

[taki]

Originally Posted by AaronP

Make sure you're not running Xgl.

*snap* That was it, brilliant. I had the xserver-xgl package installed. Thanks a bunch!

[Jouni76]

Originally Posted by AaronP

Make sure you're not running Xgl.

Yes and same here: had the xserver-xgl package installed.

(works now with the Gutsy driver packages)

Thanks AaronP!

[bordomat]

Yes and same here: had the xserver-xgl package installed.

How did you unistall xserver-xgl???

I have the same problem!

[Jouni76]

Originally Posted by bordomat

How did you unistall xserver-xgl???

Just check with your package manager (Adept/Synaptic) if you have the xserver-xgl installed, and if it is, then remove it.

Or more directly, get to console and

sudo apt-get remove xserver-xgl

[cavallopazzo]

Hi guys ...
I'm the same problem about the nvidia-settings in X.
But I've a problem about Compiz-Fusion because I can't uninstall xserver-xgl if I wanno use it. How can I do for this problem?

Thanks a lot ...

[Jouni76]

Are you sure that you need xserver-xgl with Compiz-Fusion when using nvidia-driver?