OpenGL problem, works for root, not users

Dusan · 04-17-2003, 05:53 AM

I have Radeon9500 card and XFree86 4.3.0 , Slack 8.1 and I instaled drivers for radeons for 4.3.0. It instaled OK, everything works except that I cannot use OpenGL (or is it just DRM, because I cannot use xawtv as user) if I am not root, why?

This is what comes out when I type glxinfo and xawtv

Code:

name of display: :0.0
libGL error: failed to open DRM: Operation not permitted
libGL error: reverting to (slow) indirect rendering
display: :0  screen: 0
direct rendering: No
...
...
ibGL error: failed to open DRM: Operation not permitted
libGL error: reverting to (slow) indirect rendering
...

How to set permissions so that other users can use opengl (DRM)?

Mega Man X · 04-17-2003, 06:15 AM

I'm not sure, but I think you are looking for the command chown and chmod... take a look here:

http://www.computerhope.com/unix/uchown.htm#01.

I needed that to run Snes9x emulator cause only root can write directly to the Video Ram, but it's just a guess

UnTamed · 04-17-2003, 07:54 AM

First, make sure you have this section in your /etc/X11/XF86Config-4

Code:

Section "DRI"
    Mode        0666
EndSection

Dusan · 04-17-2003, 04:07 PM

Quote:

Originally posted by UnTamed
First, make sure you have this section in your /etc/X11/XF86Config-4

Code:

Section "DRI" Mode 0666 EndSection

Yes, I have that section in my /etc/X11/XF86Config-4.

morix · 06-22-2003, 06:20 AM

Setting section "DRI" in XF86Config-4 didn't help me.

I don't know if this is the best solution, but I solved the problem (on a Mandrake 9.1 with KYRO II video card) by manually setting permissions for DRI device:

chmod a+rwx /dev/dri (as root)

Now it seems to work.

Let me know if this works for you too, or if there are better solutions.
Bye.