Arch Linux

galiyosha

Member

From: Slovakia

Registered: 2005-08-01

Posts: 22

Direct rendering trouble when loading gdm from rc.multi

Hello,

I want gdm to be started automatically on startup so I put /opt/gnome/bin/gdm at the end of my /etc/rc.multi. The problem is, when gdm is started this way, direct rendering isn't working. glxinfo says this:

libGL error: open DRM failed (Operation not permitted)
libGL error: reverting to (slow) indirect rendering

The radeon driver itself initializes correctly, dri module detto. When I manually log in as root and start the gdm from console, direct rendering works, so the problem really seems to be in permissions, but I don't know where and what to set. I already have these lines in my /etc/X11/xorg.conf:

Section "DRI"
   Mode 0666
EndSection

Thanks anyone for help!

Snowman

Developer/Forum Fellow

From: Montreal, Canada

Registered: 2004-08-20

Posts: 5,212

Re: Direct rendering trouble when loading gdm from rc.multi

Add your user to video group:
gpasswd -a USERNAME video

You should also add it to audio and optical groups to get sound and access to cd/dvd drive.

galiyosha

Member

From: Slovakia

Registered: 2005-08-01

Posts: 22

Re: Direct rendering trouble when loading gdm from rc.multi

Did the trick, thanks a lot! should've thought about it myself. I've already added my user to audio and optical groups, but there was no video group so I just forgot about it...