Subject: udev: wrong permissions for /dev/dri/card0
Package: udev
Version: 167-1
Severity: normal
Tags: sid
Upgrade of udev package leads to slow graphics performance due to bad
permissions on /dev/dri/card* device.
Steps to reproduce:
1. Upgrade udev 166-1 -> 167-1
2. Reboot
3. Check permissions: ls -l /dev/dri/card*
Check if OpenGL rendering works with your graphic card:
glxinfo|grep -i render
Expected behaviour:
1. /dev/dri/card0 has rw-rights for root and group "video":
# ls -l /dev/dri/card*
crw-rw----+ 1 root video 226, 0 2011-04-08 21:58 /dev/dri/card0
2. OpenGL rendering uses your card. For example:
# glxinfo|grep -i render
direct rendering: Yes
OpenGL renderer string: Mesa DRI Intel(R) 945GM GEM 20100330 DEVELOPMENT
x86/MMX/SSE2
Actual behavior:
1. /dev/dri/card0 is only accessible by root:
# ls -l /dev/dri/card*
crw------- 1 root root 226, 0 2011-04-08 20:05 /dev/dri/card0
2. OpenGL rendering uses software render
# glxinfo|grep -i render
direct rendering: Yes
OpenGL renderer string: Software Rasterizer
-- System Information:
Debian Release: wheezy/sid
APT prefers unstable
APT policy: (990, 'unstable'), (550, 'testing'), (510, 'oldstable'), (500,
'stable'), (10, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.38-2-686 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages udev depends on:
ii debconf [debconf-2.0] 1.5.38 Debian configuration management sy
ii libc6 2.11.2-11 Embedded GNU C Library: Shared lib
ii libselinux1 2.0.98-1 SELinux runtime shared libraries
ii libudev0 167-1 libudev shared library
ii libusb-0.1-4 2:0.1.12-17 userspace USB programming library
ii lsb-base 3.2-27 Linux Standard Base 3.2 init scrip
ii util-linux 2.17.2-9.1 Miscellaneous system utilities
Versions of packages udev recommends:
ii pciutils 1:3.1.7-8 Linux PCI Utilities
ii usbutils 1:001-1 Linux USB utilities
udev suggests no packages.
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