> Maybe there is a better place to post this message but as my question
> was still CentOS related thought I would start here. Please advise if
> there is a better forum of which to ask this question.
>
> I am playing around with making a "desktop" workstation out of a
> Raspberry PI3. I have had no problems installing the OS and pretty much
> have everything working except a Gnome desktop.
>
> I did:
>
> > yum groupinstall "GNOME Desktop"
>
> and from what I can tell everything necessary is installed. However when
> I try to start X up I see it try and start, the display blinks as if
> everything is good and then drops back down to the console. The log file
> shown below shows a single error ([ 2665.952] (EE) AIGLX: reverting to
> software rendering).
>
> [ 2665.710]
> X.Org X Server 1.17.2
> Release Date: 2015-06-16
> [ 2665.725] X Protocol Version 11, Revision 0
> [ 2665.731] Build Operating System: 4.5.7-fedora-4
> [ 2665.736] Current Operating System: Linux centos-rpi3 4.4.33-v7.1.el7
> #1 SMP Mon Nov 21 18:48:06 UTC 2016 armv7l
> [ 2665.736] Kernel command line: 8250.nr_uarts=0 dma.dmachans=0x7f35
> bcm2708_fb.fbwidth=1872 bcm2708_fb.fbheight=1168
> bcm2709.boardrev=0xa22082 bcm2709.serial=0x54bd9ed0
> smsc95xx.macaddr=B8:27:EB:BD:9E:D0 bcm2708_fb.fbswap=1
> bcm2709.uart_clock=4800 vc_mem.mem_base=0x3dc0
> vc_mem.mem_size=0x3f00 dwc_otg.lpm_enable=0 console=ttyS0,115200
> console=tty1 root=/dev/mmcblk0p3 rootfstype=ext4 elevator=deadline
> rootwait selinux=1 security=selinux enforcing=0
> [ 2665.756] Build Date: 09 November 2016 05:46:31PM
> [ 2665.763] Build ID: xorg-x11-server 1.17.2-22.el7
> [ 2665.769] Current version of pixman: 0.34.0
> [ 2665.783]Before reporting problems, check http://wiki.x.org
> to make sure that you have the latest version.
> [ 2665.783] Markers: (--) probed, (**) from config file, (==) default
> setting,
> (++) from command line, (!!) notice, (II) informational,
> (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> [ 2665.812] (==) Log file: "/var/log/Xorg.1.log", Time: Sat Dec 31
> 20:08:58 2016
> [ 2665.819] (==) Using config file: "/etc/X11/xorg.conf"
> [ 2665.827] (==) Using system config directory
> "/usr/share/X11/xorg.conf.d"
> [ 2665.828] (==) ServerLayout "Default Layout"
> [ 2665.828] (**) |-->Screen "Screen0" (0)
> [ 2665.828] (**) | |-->Monitor "Monitor0"
> [ 2665.829] (**) | |-->Device "VideocoreIV"
> [ 2665.829] (**) |-->Input Device "Keyboard0"
> [ 2665.829] (==) Automatically adding devices
> [ 2665.829] (==) Automatically enabling devices
> [ 2665.830] (==) Automatically adding GPU devices
> [ 2665.830] (==) Max clients allowed: 256, resource mask: 0x1f
> [ 2665.830] (==) FontPath set to:
> catalogue:/etc/X11/fontpath.d,
> built-ins
> [ 2665.830] (==) ModulePath set to "/usr/lib/xorg/modules"
> [ 2665.830] (II) The server relies on udev to provide the list of input
> devices.
> If no devices become available, reconfigure udev or disable
> AutoAddDevices.
> [ 2665.830] (WW) Hotplugging is on, devices using drivers 'kbd',
> 'mouse' or 'vmmouse' will be disabled.
> [ 2665.830] (WW) Disabling Keyboard0
> [ 2665.830] (II) Loader magic: 0x54cf7004
> [ 2665.830] (II) Module ABI versions:
> [ 2665.830]X.Org ANSI C Emulation: 0.4
> [ 2665.830]X.Org Video Driver: 19.0
> [ 2665.830]X.Org XInput driver : 21.0
> [ 2665.830]X.Org Server Extension : 9.0
> [ 2665.831] (II) no primary bus or device found
> [ 2665.831] (II) LoadModule: "glx"
> [ 2665.832] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
> [ 2665.855] (II) Module glx: vendor="X.Org Foundation"
> [ 2665.855]compiled for 1.17.2, module version = 1.0.0
> [ 2665.855]ABI class: X.Org Server Extension, version 9.0
> [ 2665.855] (==) AIGLX enabled
> [ 2665.855] (II) LoadModule: "fbdev"
> [ 2665.856] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
> [ 2665.857] (II) Module fbdev: vendor="X.Org Foundation"
> [ 2665.857]compiled for 1.17.2, module version = 0.4.3
> [ 2665.857]Module class: X.Org Video Driver
> [ 2665.857]ABI class: X.Org Video Driver, version 19.0
> [ 2665.857] (II) FBDEV: driver for framebuffer: fbdev
> [ 2665.857] (++) using VT number 1
>
> [ 2665.857] (WW) Falling back to old probe method for fbdev
> [ 2665.857] (II) Loading sub module "fbdevhw"
> [ 2665.857] (II) LoadModule: "fbdevhw"
> [ 2665.858] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
> [ 2665.859] (II) Module fbdevhw: vendor="X.Org Foundation"
> [ 2665.859]compiled for 1.17.2, module version = 0.0.2
> [ 2665.859]ABI class: X.Org Video Driver, version 19.0
> [ 2665.859] (II) FBDEV(0): using default device
> [ 2665.859] (WW) VGA arbiter: cannot open kernel arbiter, no multi-card
> support
> [ 2665.860] (**) FBDEV(0): Depth 24, (--) framebuffer bpp 32
> [ 2665.860] (==) FBDEV(0): RGB weight 888
> [ 2665.860] (==) FBDEV(0):
