pi@SdrPi:/var/log $ cat /var/log/Xorg.0.log
[    31.557]
X.Org X Server 1.18.4
Release Date: 2016-07-19
[    31.557] X Protocol Version 11, Revision 0
[    31.557] Build Operating System: Linux 4.4.26-v7+ armv7l Raspbian
[    31.557] Current Operating System: Linux SdrPi 4.4.39-v7+ #1 SMP Sat Dec 24 01:28:53 CET 2016 armv7l
[    31.557] Kernel command line: 8250.nr_uarts=1 dma.dmachans=0x7f35 bcm2708_fb.fbwidth=1280 bcm2708_fb.fbheight=1024 bcm2709.boardrev=0xa02082 bcm2709.serial=0xdfc7bc40 smsc95xx.macaddr=B8:27:EB:C7:BC:40 bcm2708_fb.fbswap=1 bcm2709.uart_clock=48000000 vc_mem.mem_base=0x3dc00000 vc_mem.mem_size=0x3f000000  dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles
[    31.557] Build Date: 11 November 2016  11:59:59AM
[    31.557] xorg-server 2:1.18.4-2+rpi1 (https://www.debian.org/support)
[    31.557] Current version of pixman: 0.33.3
[    31.557]    Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
[    31.557] Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    31.557] (==) Log file: "/var/log/Xorg.0.log", Time: Sat Dec 24 10:04:40 2016
[    31.558] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    31.558] (==) ServerLayout "TFT"
[    31.558] (**) |-->Screen "ScreenTFT" (0)
[    31.558] (**) |   |-->Monitor "MonitorTFT"
[    31.559] (**) |   |-->Device "DeviceTFT"
[    31.559] (**) |   |-->GPUDevice "DeviceTFT"
[    31.559] (==) Automatically adding devices
[    31.559] (==) Automatically enabling devices
[    31.559] (==) Automatically adding GPU devices
[    31.559] (==) Max clients allowed: 256, resource mask: 0x1fffff
[    31.559] (WW) The directory "/usr/share/fonts/X11/misc" does not exist.
[    31.559]    Entry deleted from font path.
[    31.559] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[    31.559]    Entry deleted from font path.
[    31.559] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[    31.559]    Entry deleted from font path.
[    31.559] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[    31.559]    Entry deleted from font path.
[    31.559] (==) FontPath set to:
        /usr/share/fonts/X11/100dpi/:unscaled,
        /usr/share/fonts/X11/Type1,
        /usr/share/fonts/X11/100dpi,
        built-ins
[    31.559] (==) ModulePath set to "/usr/lib/xorg/modules"
[    31.559] (II) The server relies on udev to provide the list of input devices.
        If no devices become available, reconfigure udev or disable AutoAddDevices.
[    31.559] (II) Loader magic: 0x54cf8f20
[    31.559] (II) Module ABI versions:
[    31.559]    X.Org ANSI C Emulation: 0.4
[    31.559]    X.Org Video Driver: 20.0
[    31.559]    X.Org XInput driver : 22.1
[    31.559]    X.Org Server Extension : 9.0
[    31.562] (++) using VT number 7

[    31.562] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
[    31.562] (II) no primary bus or device found
[    31.562] (II) LoadModule: "glx"
[    31.563] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[    31.567] (II) Module glx: vendor="X.Org Foundation"
[    31.567]    compiled for 1.18.4, module version = 1.0.0
[    31.567]    ABI class: X.Org Server Extension, version 9.0
[    31.567] (==) AIGLX enabled
[    31.567] (==) Matched modesetting as autoconfigured driver 0
[    31.567] (==) Matched fbdev as autoconfigured driver 1
[    31.567] (==) Assigned the driver to the xf86ConfigLayout
[    31.567] (II) LoadModule: "modesetting"
[    31.567] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[    31.568] (II) Module modesetting: vendor="X.Org Foundation"
[    31.568]    compiled for 1.18.4, module version = 1.18.4
[    31.568]    Module class: X.Org Video Driver
[    31.568]    ABI class: X.Org Video Driver, version 20.0
[    31.568] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[    31.568] (WW) Falling back to old probe method for modesetting
[    31.568] (EE) open /dev/dri/card0: No such file or directory
[    31.568] (EE) No devices detected.
[    31.568] (EE)
Fatal server error:
[    31.568] (EE) no screens found(EE)
[    31.568] (EE)
Please consult the The X.Org Foundation support
         at http://wiki.x.org
 for help.
[    31.568] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[    31.568] (EE)
[    31.581] (EE) Server terminated with error (1). Closing log file.