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Old 01-17-2009, 01:22 AM   #1
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Registered: Oct 2006
Posts: 25

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Configure hardware accel. Debian - Help?

Hello all,

I'm running Debian etch, nvidia-specific driver downloaded from nvidia and installed. I can't figure out how to enable hardware acceleration.

My xorg.conf file lists the following in the Device section:

Section "Device"
    Identifier     "nVidia Corporation C51 [GeForce 6150 LE]"
    Driver         "nvidia"
    Option         "RandRRotation" "on"
Please note in the above, RandRRotation is enabled, and I do get a rotared (vertical) display, which I believe means I do indeed have the proper nVidia driver (I can't get rotation with the generic nvidia driver from the distro)

Synaptic tells me that libgl1-mesa-dev, libgl1-mesa-dri and libgl1-mesa-glx are installed, but the command glxinfo in terminal returns:

"bash: glxinfo: command not found"

I'm trying to experiment with 3ddesk, but running the 3ddeskd command returns the following:

Daemon started.  Run 3ddesk to activate.
myhome:~$ 3ddeskd: glXIsDirect failed, no Direct Rendering possible!
3ddeskd: Please configure hardware acceleration.  Exiting.
...which is why I was trying to check on my hardware acceleration, leading to the findings above.

[Incidentally, should 3ddesk work ok with a rotated display?]

Any assistance would be greatly appreciated.

Thanks in advance and cheers


OK progress report - I installed mesa-utils package, ran the following:

glxinfo | grep irect

Got the following output:
direct rendering: No

So the question remains: What do I need to do to enable it?

Second update: Ran glxheads :0 in terminal, got a small window with a green triangle spinning quite smoothly, and the following output:

Name: :0
  Display:     0x805e008
  Window:      0x2a00002
  Context:     0x806e310
  GL_VERSION:  1.4 (2.1.0 NVIDIA 96.31)
  GL_VENDOR:   NVIDIA Corporation
X connection to :0.0 broken (explicit kill or server shutdown).

What does all this mean?

Again, thanks in advance.

Last edited by r_avital; 01-17-2009 at 01:48 AM.
Old 01-17-2009, 07:05 AM   #2
the trooper
Senior Member
Registered: Jun 2006
Location: England
Distribution: Debian Stretch Amd64
Posts: 1,477

Rep: Reputation: Disabled
As you have worked out you have no 3d graphics acceleration:direct rendering: No.
I would say the best thing to do is remove the driver and start again.
In single user mode run the command as root:nvidia-installer --uninstall
Change your /etc/X11/xorg.conf to use the "nv" driver.
Reboot into the gui.
For that age of graphics card it is probably better to use the Debian method to install the driver,here's a link:

Follow the steps in the guide.
Also you can install the driver with X running,using this method.

The trooper.
Old 01-17-2009, 04:46 PM   #3
Registered: Oct 2004
Location: Tartu, Ċrhus,Nürnberg, Europe
Distribution: Debian, Ubuntu, Puppy
Posts: 619

Rep: Reputation: 45
You should also have a line
load "glx"
in the module section of your xorg.conf file.

Can you post your complete /etc/X11/xorg.conf and /var/log/Xorg.0.log ?


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