[Bug 88960] X server comes up with black screen if screensaver is activated on another X server

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88960

--- Comment #6 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to Maxim Mikityanskiy from comment #5) 
> As lightdm relies on that fbcon will turn on the screen before Xorg starts,
> and lightdm can come up with no outputs enabled, I will report this bug to
> lightdm.

That's actually a bug. The goal is for the kernel to do nothing and preserve
the output configuration from the BIOS. (So whatever configuration is setup in
hardware, or in device files, is preserved right up until the user applies
their preferences). So that means that even without fbcon, we should basically
continue to show the BIOS screen until the splashscreen loads or until the DE
fires up (i.e. no flicker boot). The full BIOS preservation is still hidden
behind i915.fastboot=1.

>From my pov, the display manager is the best place for the initial modesetting
- precisely because it can store user preferences for different combination of
monitors.

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