Created attachment 1110493 [details]
journalctl -ab after boot + a couple of screen flashes, with gdm debugging enabled
Description of problem:
With Wayland enabled, I don't get to see the login screen. It flickers between black and "no signal". Disabling Wayland fixes this.
(Step-by-step instructions to disable Wayland here: https://www.maketecheasier.com/fix-wayland-gdm-issue-fedora/).
This is an Intel NUC 5CPYH system - "Braswell" SoC.
I assume it's unlikely to be a problem in Wayland specifically. But hopefully someone will triage / help me identify the component it should be filed against.
[It would also be nice if "disable Wayland" was listed somewhere as a troubleshooting option; I didn't see that anywhere. Any suggestions who to talk to? Maybe the install guide is a good starting point as it has a very minimal troubleshooting section]
Version-Release number of selected component (if applicable):
kernel 4.2.8-300.fc23.x86_64 (also on 4.2.3-300)
How reproducible: always, just turn the box on and wait for gdm to start.
Steps to Reproduce:
1. Buy NUC5CPYH
2. Install Fedora Workstation 23
I don't get to see the login screen. It flickers between black and "no signal". Disabling Wayland fixes this.
Lovely free software GUI appears when booting my Fedora install.
Even with the workaround I get a few kernel messages "*ERROR* timed out waiting for Punit DDR DVFS request"
Created attachment 1110494 [details]
Created attachment 1110495 [details]
"Blocks: WaylandRelated" suggested by wiki page on debugging Wayland.
This seems to have fixed itself, yay!
Current versions - I guess only the kernel has changed: