Thinkpad X1 Carbon Manjaro XFCE second display is not detected

After an update (about a month ago), the second display is not detected by the system when connected through HDMI. On other laptops (Windows OS) the monitor works just fine. I have a Lenovo Thinkpad X1 Carbon, with Intel graphics card (no second GPU). This is the output of xrandr when display is connected:

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 310mm x 170mm
   1920x1080     60.05*+  59.93  
   1680x1050     59.88  
   1400x1050     59.98  
   1600x900      60.00    59.95    59.82  
   1280x1024     60.02  
   1400x900      59.96    59.88  
   1280x960      60.00  
   1368x768      60.00    59.88    59.85  
   1280x800      59.81    59.91  
   1280x720      59.86    60.00    59.74  
   1024x768      60.00  
   1024x576      60.00    59.90    59.82  
   960x540       60.00    59.63    59.82  
   800x600       60.32    56.25  
   864x486       60.00    59.92    59.57  
   640x480       59.94  
   720x405       59.51    60.00    58.99  
   640x360       59.84    59.32    60.00  
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

This is an output of lspci -v

00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07) (prog-if 00 [VGA controller])
	Subsystem: Lenovo UHD Graphics 620
	Flags: bus master, fast devsel, latency 0, IRQ 139
	Memory at 2ffa000000 (64-bit, non-prefetchable) [size=16M]
	Memory at 2fa0000000 (64-bit, prefetchable) [size=256M]
	I/O ports at e000 [size=64]
	[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
	Capabilities: [40] Vendor Specific Information: Len=0c <?>
	Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
	Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit-
	Capabilities: [d0] Power Management version 2
	Capabilities: [100] Process Address Space ID (PASID)
	Capabilities: [200] Address Translation Service (ATS)
	Capabilities: [300] Page Request Interface (PRI)
	Kernel driver in use: i915

I've looked at both xrandr and intel graphics documentation on Arch wiki, but found no solution.

have you done update with Xfce 4.14 ?
check also displays options

According to xfce-about, the version is 4.14 pre2. Display options do not show any secondary display at all, that's why I am suspecting it's a driver issue.

Bizzarely enough, after latest update the display now works just fine. I guess issue solved