Hi All,

I've managed to install KALI 2018.4/KDE into a GPT/UEFI
partition table setup on a ThinkPad X1 2GEN.

Everything installs normally without error or complication.
When I boot the machine the usual select OS screen displays
but after that, the GUI login screen doesn't execute and I'm
looking at a text based login screen.

Just to make it more interesting, if I leave the machine for a
few minutes, it lauches the GUI without any intervention or
half way through logging in the text log-in.

I've updated the all the software but with no change.
Is this likely to be a bug or an I missing something?

Code:
For reference purposes (install procedure Lenovo Carbon X1 2nd Gen that worked for me):

1)  Enter into BIOS to, reset BIOS to default
1b) RESTART -> OS Optimised Defaults select [ENABLED]
1c) RESTART -> Load Setup Defaults [RETURN KEY] select [YES]
1d) RESTART -> Exit Saving Changes select [YES]
1e) System will restart...

2)  Enter into BIOS to, change BIOS to accept other operating systems
2b) SECURITY -> Secure Boot -> Secure Boot [RETURN KEY] select [DISABLE]
2c) Press the [ESC] key once to get to the main menu
2d) STARTUP -> UEFI/Legacy Boot select [BOTH]
2e) STARTUP -> UEFI/Legacy Boot Priority selected automatically [LEGACY FIRST]
2f) STARTUP -> CSM Support selected automatically [YES]
2g) RESTART -> Exit Saving Changes select [YES]
2h) System will restart...

3)  Format disk / create partition table type GPT
3*) You will need to create a bootable flash drive from gparted.org
3*) Hint, dd if=/path/to/source/file.iso of=/dev/sdb
3b) Delete all partitions. [RIGHT CLICK] mouse/pad or menu Partition -> Delete
3c) Create GPT partition for entire device:
3c) DEVICE -> Create Partition Table -> select GPT -> [APPLY Button]
3d) Exit and select [SHUTDOWN] option.
3e) Remove gparted flash drive...

4)  Enter into BIOS to, change BIOS into UEFI mode
4b) STARTUP -> UEFI/Legacy Boot select [UEFI ONLY]
4c) STARTUP -> CSM Support select [NO]
4d) RESTART -> Exit Saving Changes select [YES]
4e) System will restart -> shutdown ...

5)  Insert KALI flash drive and start your system...
5*) You will need to create a bootable flash drive from kali.org
5*) Hint: dd if=/path/to/source/file.iso of=/dev/sdb
5a) Hint: ... Force UEFI Installation? select [YES]
5b) Hint: ... First partition should be EFI System Partition
5c) Create a new partition on your storage device...
5d) Hint: select USE AS
5e) Hint: select EFI System Partition
5f) Hint: select Done Setting up the partition
5g) Create additional partitions as required...
5h) Continue installing KALI as normal...
5i) Restart when finished...