<code>
sh-4.4$ uname -a
Linux anguis 4.14.3-1-MANJARO <a class="inline-tag" href="https://manjaro.ru/tag/1/">1</a> SMP PREEMPT Thu Nov 30 14:22:30 UTC 2017 x86_64 GNU/Linux
sh-4.4$ xrandr -q
Screen 0: minimum 8 x 8, current 640 x 480, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
VGA-0 connected 640x480+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   640x480       59.94*+
   320x240       60.05  
DVI-I-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
</code>

<code>[  2456.515] 
X.Org X Server 1.19.5
Release Date: 2017-10-12
[  2456.521] X Protocol Version 11, Revision 0
[  2456.524] Build Operating System: Linux 4.9.54-1-lts x86_64 
[  2456.530] Current Operating System: Linux anguis 4.14.3-1-MANJARO <a class="inline-tag" href="https://manjaro.ru/tag/1/">1</a> SMP PREEMPT Thu Nov 30 14:22:30 UTC 2017 x86_64
[  2456.531] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.14-x86_64 root=UUID=ac2d7f2d-f57b-4265-ab4d-8120599ce2a4 rw quiet splash resume=UUID=5ee3db79-4998-4715-9784-a62afc59833c
[  2456.546] Build Date: 12 October 2017  09:59:53PM
[  2456.551]  
[  2456.557] Current version of pixman: 0.34.0
[  2456.570] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[  2456.570] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[  2456.601] (==) Log file: "/var/log/Xorg.0.log", Time: Mon Dec  4 10:44:45 2017
[  2456.601] (II) Loader magic: 0x55b947724d60
[  2456.601] (II) Module ABI versions:
[  2456.601] 	X.Org ANSI C Emulation: 0.4
[  2456.601] 	X.Org Video Driver: 23.0
[  2456.601] 	X.Org XInput driver : 24.1
[  2456.601] 	X.Org Server Extension : 10.0
[  2456.601] (--) using VT number 1

[  2456.601] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
[  2456.601] (II) xfree86: Adding drm device (/dev/dri/card0)
[  2456.602] (EE) 
[  2456.610] (EE) Backtrace:
[  2456.641] (EE) 0: /usr/lib/xorg-server/Xorg (OsLookupColor+0x139) [0x55b9474a0ee9]
[  2456.650] (EE) 1: /usr/lib/libpthread.so.0 (funlockfile+0x50) [0x7f763b5e7def]
[  2456.660] (EE) 2: /usr/lib/xorg-server/Xorg (xf86PlatformMatchDriver+0x2b4) [0x55b94739a534]
[  2456.670] (EE) 3: /usr/lib/xorg-server/Xorg (xf86BusProbe+0x9) [0x55b947372469]
[  2456.681] (EE) 4: /usr/lib/xorg-server/Xorg (InitOutput+0x7ff) [0x55b9473810ef]
[  2456.692] (EE) 5: /usr/lib/xorg-server/Xorg (InitFonts+0x213) [0x55b94733f023]
[  2456.702] (EE) 6: /usr/lib/libc.so.6 (__libc_start_main+0xea) [0x7f763b23ef6a]
[  2456.714] (EE) 7: /usr/lib/xorg-server/Xorg (_start+0x2a) [0x55b947328eaa]
[  2456.725] (EE) 
[  2456.736] (EE) Segmentation fault at address 0x50
[  2456.748] (EE) 
Fatal server error:
[  2456.772] (EE) Caught signal 11 (Segmentation fault). Server aborting
[  2456.784] (EE) 
[  2456.797] (EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
[  2456.846] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[  2456.859] (EE) 
[  2456.872] (EE) Server terminated with error (1). Closing log file.
</code>

if [ "$(tty)" = "/dev/tty1" ] ; then
  startxfce4
fi