https://bugs.kde.org/show_bug.cgi?id=493879

--- Comment #40 from Dinolek <[email protected]> ---
(In reply to Oleg Gorobets from comment #38)
> I am adding possible patch which does two things:
> 
> (1) Removes 'allOff' check which seems to be out of place. For one, output
> configuration is different at this moment, leading to built-in monitor being
> enabled (as mentioned in previous comments). Also, on a more generic note,
> it is not clear why DPMS mode for one monitor should depend on others?
> 
> (2) Fixes pipeline 'active' flag which is set to false in
> DrmBackend::addOutput(), but then re-enabled in DrmGpu::updateOutputs()
> 
> I have tested it and it completely fixes sleep and wake-up cycles for me. I
> tested with closing lid and also with 'kscreen-doctor --dpms off' command,
> which seem to be identical in result.
> 
> Dinolek, can you check if it solves the problem for you?
Works fine if I have only external or only built-in screen enabled.
With built-in and external monitor enabled, external stays off(until e.g. I
move a mouse), while built-in turns back on.

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