[Bug 73842] Haswell: lock screen disappears temporarily after dmps force off/on (laptop lid close/open)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73842

--- Comment #11 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to comment #10)
> p.s. where should I file a report about the screen not automatically
> shutting off when lid is closed? That's supposed to happen, right?

Hmm, yes. Kernel detects lid event, sends hotplug notification, userspace wakes
up sees the lid is closed and/or the panel is disconnected and turns off the
panel. (Any one of those steps may be at fault - you can at least watch what
userspace does by tracing X, it serves as the hub for events and commands).
Sometimes this is complicated by the firmware interceding and turning things
off on its own accord.

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