[KScreen] [Bug 345225] External monitors not activated after resuming from sleep

[Simone Gaiarin]

https://bugs.kde.org/show_bug.cgi?id=345225

Simone Gaiarin  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |UPSTREAM

--- Comment #13 from Simone Gaiarin  ---
I mark this as solved. In my case updating to Kernel 4.6 solved the problem. So
it seems it was unrelated from KScreen.

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[KScreen] [Bug 345225] External monitors not activated after resuming from sleep

[Simone Gaiarin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=345225

--- Comment #12 from Simone Gaiarin  ---
Also, I have this option related to the Intel driver in grub. Can this by
related to the issues?

GRUB_CMDLINE_LINUX=" acpi=force 
   acpi_enforce_resources=lax i915.enable_rc6=1 i915.enable_fbc=1 
   i915.lvds_downclock=1 i915.semaphores=1"

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[KScreen] [Bug 345225] External monitors not activated after resuming from sleep

[Simone Gaiarin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=345225

--- Comment #11 from Simone Gaiarin  ---
Another detail on this issue, is that sometimes there is no way to activate the
monitor at all. In KScreen clicking enable and apply won't change anything.
Often in this situation the list of resolutions available are wrong, so the
monitor information are probably not detected at all, even though the monitor
itself is detected as connected.

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[KScreen] [Bug 345225] External monitors not activated after resuming from sleep

[Simone Gaiarin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=345225

--- Comment #10 from Simone Gaiarin  ---
 I can suspend/resume via laptop lid/graphical interface/physical button and in
any case the monitor doesn't wake up.

Still present in Plasma 5.6. I cannot apply the workaround suggested above,
because the problems in comment #8 are still present as well.

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[KScreen] [Bug 345225] External monitors not activated after resuming from sleep

[Matthias Blaicher via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=345225

Matthias Blaicher  changed:

   What|Removed |Added

 CC||matth...@blaicher.com

--- Comment #9 from Matthias Blaicher  ---
While I have not yet fully understood the full standby logic of kscreen. It
seems to me that two things might change how the logic behaves:
 - The time it takes to suspend (kscreen uses a timer internally)
 - The state of the laptop lid

Hence, does it make a difference to you if the lid is opened or closed?

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[KScreen] [Bug 345225] External monitors not activated after resuming from sleep

[Dmitry via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=345225

Dmitry  changed:

   What|Removed |Added

 CC||sho...@gmail.com

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