[root@boo lib]# yum list installed | grep xcb yum list installed | grep xorg-x11 libxcb.x86_64 1.8.1-1.el6 @base libxcb-devel.x86_64 1.8.1-1.el6 @base libxcb-python.x86_64 1.8.1-1.el6 @base xcb-proto.noarch 1.7-2.el6 @base xcb-util.x86_64 0.3.6-1.el6 @anaconda-CentOS-201106060106.x86_64/6.0 xcb-util-devel.x86_64 0.3.6-1.el6 @base [root@boo lib]# yum list installed | grep xorg-x11 xorg-x11-apps.x86_64 7.6-6.el6 @base xorg-x11-drivers.x86_64 7.3-13.4.el6 @base xorg-x11-drv-acecad.x86_64 1.5.0-6.el6 @base xorg-x11-drv-aiptek.x86_64 1.4.1-4.el6 @base xorg-x11-drv-apm.x86_64 1.2.5-5.el6 @base xorg-x11-drv-ast.x86_64 0.97.0-2.el6 @base xorg-x11-drv-ati.x86_64 6.99.99-1.el6 @base xorg-x11-drv-ati-firmware.noarch 6.99.99-1.el6 @base xorg-x11-drv-cirrus.x86_64 1.5.1-2.el6 @base xorg-x11-drv-dummy.x86_64 0.3.6-2.el6 @base xorg-x11-drv-elographics.x86_64 1.4.1-2.el6 @base xorg-x11-drv-evdev.x86_64 2.7.3-5.el6 @base xorg-x11-drv-fbdev.x86_64 0.4.3-2.el6 @base xorg-x11-drv-fpit.x86_64 1.4.0-5.el6 @base xorg-x11-drv-glint.x86_64 1.2.8-3.el6 @base xorg-x11-drv-hyperpen.x86_64 1.4.1-4.el6 @base xorg-x11-drv-i128.x86_64 1.3.6-3.el6 @base xorg-x11-drv-i740.x86_64 1.3.4-5.el6 @base xorg-x11-drv-intel.x86_64 2.20.2-2.el6 @base xorg-x11-drv-keyboard.x86_64 1.6.2-7.el6 @base xorg-x11-drv-mach64.x86_64 6.9.3-4.1.el6_4 @updates xorg-x11-drv-mga.x86_64 1.6.1-8.el6_4 @updates xorg-x11-drv-modesetting.x86_64 0.5.0-1.el6 @base xorg-x11-drv-mouse.x86_64 1.8.1-7.el6 @base xorg-x11-drv-mutouch.x86_64 1.3.0-4.el6 @base xorg-x11-drv-nouveau.x86_64 1:1.0.1-3.el6 @base xorg-x11-drv-nv.x86_64 2.1.20-4.el6 @base xorg-x11-drv-openchrome.x86_64 0.3.0-3.20120806git.el6 @base xorg-x11-drv-penmount.x86_64 1.5.0-4.el6 @base xorg-x11-drv-qxl.x86_64 0.1.0-4.el6 @base xorg-x11-drv-r128.x86_64 6.9.1-1.el6 @base xorg-x11-drv-rendition.x86_64 4.2.5-2.el6 @base xorg-x11-drv-s3virge.x86_64 1.10.6-2.el6 @base xorg-x11-drv-savage.x86_64 2.3.6-2.el6 @base xorg-x11-drv-siliconmotion.x86_64 1.7.7-2.el6 @base xorg-x11-drv-sis.x86_64 0.10.7-2.el6 @base xorg-x11-drv-sisusb.x86_64 0.9.6-2.el6 @base xorg-x11-drv-synaptics.x86_64 1.6.2-11.el6 @base xorg-x11-drv-tdfx.x86_64 1.4.5-2.el6 @base xorg-x11-drv-trident.x86_64 1.3.6-4.el6 @base xorg-x11-drv-v4l.x86_64 0.2.0-6.el6 @base xorg-x11-drv-vesa.x86_64 2.3.2-4.el6 @base xorg-x11-drv-vmmouse.x86_64 12.9.0-10.el6 @base xorg-x11-drv-vmware.x86_64 12.0.2-3.20120718gite5ac80d8f.el6 xorg-x11-drv-void.x86_64 1.4.0-3.el6 @base xorg-x11-drv-voodoo.x86_64 1.2.5-3.el6 @base xorg-x11-drv-wacom.x86_64 0.16.1-3.el6 @base xorg-x11-drv-xgi.x86_64 1.6.0-18.20121114git.el6 @base xorg-x11-font-utils.x86_64 1:7.2-11.el6 @base xorg-x11-fonts-100dpi.noarch 7.2-9.1.el6 @anaconda-CentOS-201106060106.x86_64/6.0 xorg-x11-fonts-ISO8859-1-100dpi.noarch 7.2-9.1.el6 @anaconda-CentOS-201106060106.x86_64/6.0 xorg-x11-fonts-Type1.noarch 7.2-9.1.el6 @anaconda-CentOS-201106060106.x86_64/6.0 xorg-x11-fonts-misc.noarch 7.2-9.1.el6 @anaconda-CentOS-201106060106.x86_64/6.0 xorg-x11-proto-devel.noarch 7.6-25.el6 @base xorg-x11-server-Xdmx.x86_64 1.13.0-11.el6.centos @base xorg-x11-server-Xephyr.x86_64 1.13.0-11.el6.centos @base xorg-x11-server-Xnest.x86_64 1.13.0-11.el6.centos @base xorg-x11-server-Xorg.x86_64 1.13.0-11.el6.centos @base xorg-x11-server-Xvfb.x86_64 1.13.0-11.el6.centos @base xorg-x11-server-common.x86_64 1.13.0-11.el6.centos @base xorg-x11-server-devel.x86_64 1.13.0-11.el6.centos @base xorg-x11-server-source.noarch 1.13.0-11.el6.centos @base xorg-x11-server-utils.x86_64 7.5-13.el6 @base xorg-x11-twm.x86_64 1:1.0.3-5.1.el6 @base xorg-x11-util-macros.noarch 1.17-2.el6 @base xorg-x11-utils.x86_64 7.5-6.el6 @base xorg-x11-xauth.x86_64 1:1.0.2-7.1.el6 @anaconda-CentOS-201106060106.x86_64/6.0 xorg-x11-xbitmaps.x86_64 1.0.1-9.1.el6 @base xorg-x11-xdm.x86_64 1:1.1.6-14.1.el6 @anaconda-CentOS-201106060106.x86_64/6.0 xorg-x11-xinit.x86_64 1.0.9-13.el6 @anaconda-CentOS-201106060106.x86_64/6.0 xorg-x11-xinit-session.x86_64 1.0.9-13.el6 @base xorg-x11-xkb-extras.x86_64 7.7-4.el6 @base xorg-x11-xkb-utils.x86_64 7.7-4.el6 @base xorg-x11-xkb-utils-devel.x86_64 7.7-4.el6 @base xorg-x11-xtrans-devel.noarch 1.2.7-2.el6 @base