$ cat Xorg.0.log
[    24.129]
X.Org X Server 1.16.4
Release Date: 2014-12-20
[    24.129] X Protocol Version 11, Revision 0
[    24.129] Build Operating System: Linux 3.16.0-4-amd64 x86_64 Debian
[    24.129] Current Operating System: Linux Iskander 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-3~deb8u1 (2015-04-24) x86_64
[    24.129] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.16.0-4-amd64 root=UUID=33d403f8-b72b-495d-a5d2-8afbc4a9c716 ro quiet
[    24.129] Build Date: 11 February 2015  12:32:02AM
[    24.129] xorg-server 2:1.16.4-1 (http://www.debian.org/support)
[    24.129] Current version of pixman: 0.32.6
[    24.129]    Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
[    24.129] Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    24.129] (==) Log file: "/var/log/Xorg.0.log", Time: Tue Apr 28 23:02:46 2015
[    24.175] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    24.233] (==) No Layout section.  Using the first Screen section.
[    24.233] (==) No screen section available. Using defaults.
[    24.233] (**) |-->Screen "Default Screen Section" (0)
[    24.233] (**) |   |-->Monitor "<default monitor>"
[    24.251] (==) No monitor specified for screen "Default Screen Section".
        Using a default monitor configuration.
[    24.251] (==) Automatically adding devices
[    24.251] (==) Automatically enabling devices
[    24.251] (==) Automatically adding GPU devices
[    24.309] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[    24.309]    Entry deleted from font path.
[    24.348] (==) FontPath set to:
        /usr/share/fonts/X11/misc,
        /usr/share/fonts/X11/100dpi/:unscaled,
        /usr/share/fonts/X11/75dpi/:unscaled,
        /usr/share/fonts/X11/Type1,
        /usr/share/fonts/X11/100dpi,
        /usr/share/fonts/X11/75dpi,
        built-ins
[    24.348] (==) ModulePath set to "/usr/lib/xorg/modules"
[    24.348] (II) The server relies on udev to provide the list of input devices.
        If no devices become available, reconfigure udev or disable AutoAddDevices.
[    24.358] (II) Loader magic: 0x7fcaece1dd80
[    24.358] (II) Module ABI versions:
[    24.358]    X.Org ANSI C Emulation: 0.4
[    24.359]    X.Org Video Driver: 18.0
[    24.359]    X.Org XInput driver : 21.0
[    24.359]    X.Org Server Extension : 8.0
[    24.359] (II) xfree86: Adding drm device (/dev/dri/card1)
[    44.766] (II) xfree86: Adding drm device (/dev/dri/card0)
[    44.766] (EE) /dev/dri/card0: failed to set DRM interface version 1.4: Permission denied
[    44.768] (--) PCI:*(0:0:2:0) 8086:0416:17aa:3801 rev 6, Mem @ 0xb9000000/4194304, 0xa0000000/268435456, I/O @ 0x00005000/64
[    44.768] (--) PCI: (0:1:0:0) 1002:6600:17aa:3801 rev 0, Mem @ 0xb0000000/134217728, 0xb8000000/262144, I/O @ 0x00004000/256, BIOS @ 0x????????/131072
[    44.817] (II) LoadModule: "glx"
[    44.844] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[    44.972] (II) Module glx: vendor="X.Org Foundation"
[    44.972]    compiled for 1.16.4, module version = 1.0.0
[    44.972]    ABI class: X.Org Server Extension, version 8.0
[    44.972] (==) AIGLX enabled
[    44.972] (==) Matched ati as autoconfigured driver 0
[    44.972] (==) Matched intel as autoconfigured driver 1
[    44.972] (==) Matched modesetting as autoconfigured driver 2
[    44.972] (==) Matched fbdev as autoconfigured driver 3
[    44.972] (==) Matched vesa as autoconfigured driver 4
[    44.972] (==) Assigned the driver to the xf86ConfigLayout
[    44.972] (II) LoadModule: "ati"
[    44.986] (II) Loading /usr/lib/xorg/modules/drivers/ati_drv.so
[    45.005] (II) Module ati: vendor="X.Org Foundation"
[    45.005]    compiled for 1.16.1, module version = 7.5.0
[    45.005]    Module class: X.Org Video Driver
[    45.005]    ABI class: X.Org Video Driver, version 18.0
[    45.005] (II) LoadModule: "radeon"
[    45.006] (II) Loading /usr/lib/xorg/modules/drivers/radeon_drv.so
[    45.061] (II) Module radeon: vendor="X.Org Foundation"
[    45.061]    compiled for 1.16.1, module version = 7.5.0
[    45.061]    Module class: X.Org Video Driver
[    45.061]    ABI class: X.Org Video Driver, version 18.0
[    45.061] (II) LoadModule: "intel"
[    45.061] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
[    45.091] (II) Module intel: vendor="X.Org Foundation"
[    45.091]    compiled for 1.15.99.904, module version = 2.21.15
[    45.091]    Module class: X.Org Video Driver
[    45.091]    ABI class: X.Org Video Driver, version 18.0
[    45.091] (II) LoadModule: "modesetting"
[    45.091] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[    45.100] (II) Module modesetting: vendor="X.Org Foundation"
[    45.100]    compiled for 1.15.99.904, module version = 0.9.0
[    45.100]    Module class: X.Org Video Driver
[    45.100]    ABI class: X.Org Video Driver, version 18.0
[    45.100] (II) LoadModule: "fbdev"
[    45.100] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[    45.110] (II) Module fbdev: vendor="X.Org Foundation"
[    45.110]    compiled for 1.15.99.904, module version = 0.4.4
[    45.110]    Module class: X.Org Video Driver
[    45.110]    ABI class: X.Org Video Driver, version 18.0
[    45.110] (II) LoadModule: "vesa"
[    45.110] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[    45.122] (II) Module vesa: vendor="X.Org Foundation"