Booting kernel 5.2.4-towo.1 results in a sddm failure and fallback to tty1. In /var/log/Xorg.0.log I find this error:
[282308.248] (EE) Failed to open authorization file "/var/run/sddm/{6cbd4072-4f80-490f-b4fb-75f5cd24e06a}": No
such file or directory
Google shows that others have experienced this error in the past (Manjaro and Suse), but I don't find a clear explanation of the cause or the fix.
Booting 5.1.19-towo.1 has no problem booting into X.
This system uses the nvidia proprietary driver.
System: Host: dibl-patience Kernel: 5.1.19-towo.1-siduction-amd64 x86_64 bits: 64
Desktop: KDE Plasma 5.14.5 Distro: siduction 18.3.0 Patience - kde - (201805132121)
Machine: Type: Desktop Mobo: ASUSTeK model: ROG STRIX X299-E GAMING v: Rev 1.xx serial: <filter>
UEFI: American Megatrends v: 1401 date: 05/21/2018
CPU: Topology: Quad Core model: Intel Core i7-7740X bits: 64 type: MT MCP L2 cache: 8192 KiB
Speed: 3562 MHz min/max: 800/4500 MHz Core speeds (MHz): 1: 3562 2: 4065 3: 2007 4: 2259 5: 3321
6: 1361 7: 2988 8: 2024
Graphics: Device-1: NVIDIA GP106 [GeForce GTX 1060 6GB] driver: nvidia v: 418.74
Display: x11 server: X.Org 1.20.4 driver: nvidia resolution: 1920x1200~60Hz, 1920x1080~60Hz
OpenGL: renderer: GeForce GTX 1060 6GB/PCIe/SSE2 v: 4.6.0 NVIDIA 418.74
Audio: Device-1: Intel 200 Series PCH HD Audio driver: snd_hda_intel
Device-2: NVIDIA GP106 High Definition Audio driver: snd_hda_intel
Device-3: Logitech HD Pro Webcam C920 type: USB driver: snd-usb-audio,uvcvideo
Sound Server: ALSA v: k5.1.19-towo.1-siduction-amd64
Network: Device-1: Intel Ethernet I219-V driver: e1000e
IF: enp0s31f6 state: up speed: 1000 Mbps duplex: full mac: <filter>
IF-ID-1: br0 state: up speed: N/A duplex: N/A mac: <filter>
Drives: Local Storage: total: 2.27 TiB used: 984.81 GiB (42.3%)
ID-1: /dev/sda vendor: Samsung model: SSD 860 EVO 500GB size: 465.76 GiB
ID-2: /dev/sdb vendor: Western Digital model: WD1003FZEX-00K3CA0 size: 931.51 GiB
ID-3: /dev/sdc vendor: Western Digital model: WD1003FZEX-00K3CA0 size: 931.51 GiB
Partition: ID-1: / size: 58.81 GiB used: 11.81 GiB (20.1%) fs: ext4 dev: /dev/sda2
ID-2: /home size: 393.18 GiB used: 106.15 GiB (27.0%) fs: ext4 dev: /dev/sda4
ID-3: swap-1 size: 5.00 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda3
Sensors: System Temperatures: cpu: 29.8 C mobo: 27.8 C gpu: nvidia temp: 44 C
Fan Speeds (RPM): cpu: 0 gpu: nvidia fan: 0%
Info: Processes: 252 Uptime: 7m Memory: 31.33 GiB used: 1.85 GiB (5.9%) Shell: bash inxi: 3.0.35
Any ideas?