Alex Deucher wrote:
On 12/10/05, Erik <[EMAIL PROTECTED]> wrote:
The first time I am logged in to the system after startup, I do not have
permission to open DRM:
What I did was:
1. Turn on computer.
2. Log in as root.
3. star KDM: /etc/init.d/xdm start
4. Log in as normal user.
5. Open Konsole.
6. Run glxgears. Now I get:
libGL error: open DRM failed (Operation not permitted)
7. Log out.
8. Log in (session restored).
9. Run glxgears. It runs with 3D-acceleration.
My xorg.conf contains:
Section "dri" # from http://dri.freedesktop.org/wiki/Building
Group "dri" # from http://dri.freedesktop.org/wiki/Building
Mode 0660 # from http://dri.freedesktop.org/wiki/Building
EndSection # from http://dri.freedesktop.org/wiki/Building
This is reproductible. I tried several power cycles.
your system probably uses udev to change permissions on devices on the
fly. make sure your user is in the video group (or whatever group
your distro uses for it).
Yes, that was the workaround! I added my normal username to the video
group and changed the part of xorg.conf to:
Section "dri" # from http://dri.freedesktop.org/wiki/Building
Group "video" # from http://dri.freedesktop.org/wiki/Building
Mode 0660 # from http://dri.freedesktop.org/wiki/Building
EndSection # from http://dri.freedesktop.org/wiki/Building
But I still consider it a bug that I cannot use any groupname. At least
it must be a bug in the documentation at
http://dri.freedesktop.org/wiki/Building to not say that I have to use
one particular groupname ("video").
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