ошибки Х-ов

Что это за ошибки могут быть в Xorg.log

[ 346.614] (WW) intel(0): intel_uxa_prepare_access: bo map failed: Input/output error
[ 346.614] (WW) intel(0): intel_uxa_prepare_access: bo map failed: Input/output error
[ 346.614] (WW) intel(0): intel_uxa_prepare_access: bo map failed: Input/output error


Таких в конце полно

А вот начало



[ 38.515]
X.Org X Server 1.10.2
Release Date: 2011-05-28
[ 38.515] X Protocol Version 11, Revision 0
[ 38.515] Build Operating System: x86-17 2.6.32-71.14.1.el6.x86_64
[ 38.515] Current Operating System: Linux delta-s 2.6.38.8-32.fc15.i686.PAE #1 SMP Mon Jun 13 19:55:27 UTC 2011 i686
[ 38.516] Kernel command line: ro root=UUID=a2df8b78-5874-4191-baa6-9389d32acfb8 rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=ru_RU.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us rhgb quiet
[ 38.516] Build Date: 30 May 2011 12:42:31AM
[ 38.516] Build ID: xorg-x11-server 1.10.2-1.fc15
[ 38.516] Current version of pixman: 0.20.2
[ 38.516]    Before reporting problems, check http://wiki.x.org
   to make sure that you have the latest version.
[ 38.516] Markers: (--) probed, (**) from config file, (==) default setting,
   (++) from command line, (!!) notice, (II) informational,
   (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 38.516] (==) Log file: «/var/log/Xorg.0.log», Time: Tue Jun 28 23:15:52 2011
[ 38.527] (==) Using config directory: «/etc/X11/xorg.conf.d»
[ 38.527] (==) Using system config directory «/usr/share/X11/xorg.conf.d»
[ 38.527] (==) No Layout section. Using the first Screen section.
[ 38.527] (==) No screen section available. Using defaults.
[ 38.527] (**) |-->Screen «Default Screen Section» (0)
[ 38.527] (**) | |-->Monitor «<default monitor>»
[ 38.528] (==) No monitor specified for screen «Default Screen Section».
   Using a default monitor configuration.
[ 38.528] (==) Automatically adding devices
[ 38.528] (==) Automatically enabling devices
[ 38.528] (==) FontPath set to:
   catalogue:/etc/X11/fontpath.d,
   built-ins
[ 38.528] (==) ModulePath set to «/usr/lib/xorg/modules»
[ 38.528] (II) The server relies on udev to provide the list of input devices.
   If no devices become available, reconfigure udev or disable AutoAddDevices.
[ 38.528] (II) Loader magic: 0x82299a0
[ 38.528] (II) Module ABI versions:
[ 38.528]    X.Org ANSI C Emulation: 0.4
[ 38.528]    X.Org Video Driver: 10.0
[ 38.528]    X.Org XInput driver : 12.2
[ 38.528]    X.Org Server Extension : 5.0