Blank Screen on bootup

[tuximail]

After a long time of usage with no problems today I experienced the following issue:

The greeter did not load on bootup.
In /var/log/lightdm/seat0-greeter.log we could find:

file:///usr/share/lightdm-webkit/themes/glorious/js/authenticate.js:165:15: CONSOLE LOG Start authentication
Gdk-Message: 11:45:03.100: lightdm-webkit2-greeter: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.

To ensure it is a greeter Problem I temporarily changed the greeter to 'antergos' and now everything works fine at boot.

System

• Linux:
  5.9.13-arch1-1
• Software Versions:
  lightdm-webkit2-greeter 2.2.5-4
  lightdm-webkit2-theme-glorious 2.0.5-3
  qt5-webkit 5.212.0alpha4-8
  webkit2gtk 2.30.3-1

Recent updates that might have an impact here:

2020-12-11T22:31:45+0100] [ALPM] upgraded aom (2.0.0-1 -> 2.0.1-1)
[2020-12-11T22:31:45+0100] [ALPM] upgraded archlinux-keyring (20201028-1 -> 20201210-1)
[2020-12-11T22:31:47+0100] [ALPM] upgraded lz4 (1:1.9.2-2 -> 1:1.9.3-1)
[2020-12-11T22:31:47+0100] [ALPM] upgraded curl (7.73.0-1 -> 7.74.0-1)
[2020-12-11T22:31:47+0100] [ALPM] upgraded lib32-curl (7.73.0-1 -> 7.74.0-1)
[2020-12-11T22:31:47+0100] [ALPM] upgraded lib32-vulkan-icd-loader (1.2.158-1 -> 1.2.162-1)
[2020-12-11T22:31:47+0100] [ALPM] upgraded libmagick6 (6.9.11.45-1 -> 6.9.11.48-1)
[2020-12-11T22:31:47+0100] [ALPM] upgraded vulkan-icd-loader (1.2.158-1 -> 1.2.162-1)
[2020-12-11T22:31:47+0100] [ALPM] upgraded xorg-server-common (1.20.10-1 -> 1.20.10-2)
[2020-12-11T22:31:48+0100] [ALPM] upgraded xorg-server (1.20.10-1 -> 1.20.10-2)
[2020-12-11T22:31:48+0100] [ALPM] upgraded steam (1.0.0.67-1 -> 1.0.0.68-1)
[2020-12-11T22:31:48+0100] [ALPM] upgraded xorg-server-xephyr (1.20.10-1 -> 1.20.10-2)
[2020-12-12T21:15:56+0100] [ALPM] upgraded libcap-ng (0.8-1 -> 0.8.2-1)
[2020-12-12T21:15:56+0100] [ALPM] upgraded git-lfs (2.12.1-1 -> 2.13.1-1)
[2020-12-12T21:15:56+0100] [ALPM] upgraded lib32-openssl (1:1.1.1.h-1 -> 1:1.1.1.i-1)
[2020-12-12T21:15:57+0100] [ALPM] upgraded python-language-server (0.36.1-1 -> 0.36.2-1)

[reya276]

Seems like I'm having the same issue running Linux Mint 20.03 Cinnamon DE.