Hi,

In /etc/gdm/custom.conf, if WaylandEnable is set to false, after rebooting and
typing login&password into the Gnome login screen, the system hang. I suspect a
kernel panic but I don't know what log I can provide to prove it since it seems
impossible to switch to a console TTY : ctrl+alt+F1 to F12 doesn't respond once
the system is frozen.
The problem was also present in the previous build (197.1�I believe).
Reproducibility: always

For your info, I need to fallback to Xorg because Wayland doesn't detect my
external screen (I haven't had time to look for troubleshoot tips yet but I may
open a bug report in a few days).

===========================
Some info about my system is following. In a nutshell: a 2017�Optimus Laptop
without any driver installed apart from those provided at the install process.
I also use an encrypted /home.
uname -a: Linux linux-5udt 4.12.14-lp150.8-default #1 SMP Sat Apr 7 05:12:52
UTC 2018 (8719fc4) x86_64 x86_64 x86_64 GNU/Linux

inxi -F:
System:    Host: linux-5udt Kernel: 4.12.14-lp150.8-default x86_64 bits: 64
           Desktop: Gnome 3.26.2 Distro: openSUSE Leap 15.0 Beta
Machine:   Device: laptop System: GIGABYTE product: P64V7 serial:
HH9006711A0002
           Mobo: GIGABYTE model: P64V7 serial: N/A
           UEFI: American Megatrends v: FB09 date: 07/28/2017
Battery    BAT1: charge: 78.4 Wh 83.2% condition: 94.2/94.2 Wh (100%)
CPU:       Quad core Intel Core i7-7700HQ (-HT-MCP-) cache: 6144 KB
           clock speeds: max: 3800 MHz 1: 2800 MHz 2: 2800 MHz 3: 2800 MHz
           4: 2800 MHz 5: 2800 MHz 6: 2800 MHz 7: 2800 MHz 8: 2800 MHz
Graphics:  Card-1: Intel Device 591b
           Card-2: NVIDIA GP106M [GeForce GTX 1060 Mobile]
           Display Server: wayland (X.org 1.19.6 ) driver: i915
           tty size: 80x24 Advanced Data: N/A for root
Audio:     Card Intel CM238 HD Audio Controller driver: snd_hda_intel
           Sound: ALSA v: k4.12.14-lp150.8-default
Network:   Card-1: Intel Wireless 8260 driver: iwlwifi
           IF: wlan1 state: down mac: 9a:0c:b4:38:1c:b1
           Card-2: Realtek RTL8153 Gigabit Ethernet Adapter driver: r8152
           IF: eth0 state: N/A speed: N/A duplex: N/A mac: N/A
Drives:    HDD Total Size: 525.1GB (1.6% used)
           ID-1: /dev/sda model: Crucial_CT525MX3 size: 525.1GB
Partition: ID-1: / size: 18G used: 6.0G (35%) fs: btrfs dev: /dev/sda4
           ID-2: /var size: 18G used: 6.0G (35%) fs: btrfs dev: /dev/sda4
           ID-3: /opt size: 18G used: 6.0G (35%) fs: btrfs dev: /dev/sda4
           ID-4: /tmp size: 18G used: 6.0G (35%) fs: btrfs dev: /dev/sda4
           ID-5: /home size: 3.0G used: 118M (4%) fs: xfs dev: /dev/dm-0
           ID-6: swap-1 size: 2.15GB used: 0.00GB (0%)
           fs: swap dev: /dev/sda6
Sensors:   None detected - is lm-sensors installed and configured?
Info:      Processes: 321 Uptime: 0:24 Memory: 1449.3/15918.5MB
           Init: systemd runlevel: 5 Client: Shell (bash) inxi: 2.3.40