[Openchrome-users] VIA UNICHROME [KM400]

[userforum@openchrome.org]

Re: VIA UNICHROME [KM400]

About halfway down your Xorg.0.log you can see that the dri  driver gets loaded.
About 2/3rds of the way down, x tries to contact the /dev/dri/card0 resource.
It cannot open that resource.

The problem is probaby  permissions. This got me.

Go into /etc/udev/rules.d/50-udev.rules file and well down (line 130 in my version) you will see some entries:

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

The final 666 is the change (from 0660).... that allows anyone, including the iinit processes to contact  /card0.

Further down (line 148) is where the card0 is created:

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

(I was pointed in the correct direction by Xavier Bachelot. He deserves the thanks.)

Geoff