Re: [Dri-users] DRI mode 0666 doesn't work

[Simon B. <sbb...@ho...>]

> > Hi.
> > After much rebuilding and compiling (see below) I now again have DRI
> > working
> > on my Unichrome VT8378 S3 Shuttle, with one problem.
> >
> > DRI won't open a new channel when I run glxgears, because permission is
> > denied on /dev/dri/card0.  My xorg.conf has :
> > Section "DRI"
> > #       Group        0
> >         Mode         0666
> > EndSection
> >
> > but it doesn't seem to be being used???  If I manually 'chmod 0666
> > /dev/dri/card0'  then the DRI works fine.
> >
>some distros, espacially ones that use udev, change the permissions on
>devices dynamically.  In order to use the device, you probably have to
>add your user to the video or dri group.
>
>Alex
>

Thanks for that.  Here's what I did to fix :
edited /etc/udev/rules.d/50-udev.rules

# dri devices
KERNEL=="nvidia*",              GROUP="video", MODE="0660"
KERNEL=="3dfx*",                GROUP="video", MODE="0660"
KERNEL=="dri/*",                GROUP="video", MODE="0666"

# DRI devices always go into a subdirectory (as per the LSB spec)
KERNEL=="card*",                GROUP="video", NAME="dri/card%n"