[KScreen] [Bug 355528] Multiple monitor support is erratic

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=355528

--- Comment #15 from michael.mcter...@gmail.com ---
For anyone finding this bug, the following comments from KDE developer 'sebas'
may be of interest: https://lwn.net/Articles/668712/  

It sounds like we have to wait for Wayland for a fix.

I personally now use LXDE.  While not entirely automatic, I can configure the
screens and the panel exactly as I want in about 30 seconds when changing
configs.  I don't miss much of the extra fluff and eye-candy KDE brought and
still use some of the KDE applications (mainly Kate).

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[KScreen] [Bug 355528] Multiple monitor support is erratic

[Adrian Piotrowicz via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=355528

Adrian Piotrowicz  changed:

   What|Removed |Added

 CC||nex...@nxstudio.pl

--- Comment #14 from Adrian Piotrowicz  ---
I am also affected by this bug. Moreover "kscreen-console monitor" segfaults
when i disconnect laptop from dock.

OS: Chakra
kscreen/libkscreen version: 5.5.4
plasma-framework: 5.18.0

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[KScreen] [Bug 355528] Multiple monitor support is erratic

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=355528

--- Comment #12 from aappdde...@gmail.com ---
I have discovered recently that under some scenarios where I am unable to
project or connect to an external monitor because the monitor does not
physically show up in Display Settings, that running xrandr (f23) someone
allows the Display Settings to pick up the change in the physical external
display.

So together, restarting plasmashell and/or running xrandr,  I have a complete
workaround to all the different variations of issues that I run into around
multi-monitor/projector support.

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[KScreen] [Bug 355528] Multiple monitor support is erratic

[Nick Cross via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=355528

--- Comment #13 from Nick Cross  ---
Interesting ; I've found that calling "kscreen-console bug" often makes it pick
up the extra display and turn it on.
My scenario is the laptop is suspended, I wake it up, plugin it into the dock
and connect the second monitor to the laptop's display port (not the docks). By
calling kscreen-console, then restarting plasmashell it seems work around it,

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[KScreen] [Bug 355528] Multiple monitor support is erratic

[Murat Ursavaş via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=355528

--- Comment #11 from Murat Ursavaş  ---
Please don't go that harsh on devs. There is a regression, no denial of that.
But the main responsible might not be the KDE devs.

Take a look at Martin's blog post:
https://blog.martin-graesslin.com/blog/2015/10/some-thoughts-on-the-quality-of-plasma-5/

This could be a regression due to Qt 4 to 5 switch. Let's see what will happen
on Feb (Qt 5.6 will be released).

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[KScreen] [Bug 355528] Multiple monitor support is erratic

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=355528

--- Comment #10 from cher...@aip.de ---
I wonder if KDE devs ever give talks at conferences with their Laptop then
they would know how frustrating this bug is. Severity should be changed to
"grave".

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[KScreen] [Bug 355528] Multiple monitor support is erratic

[Eric S via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=355528

--- Comment #9 from Eric S  ---
Also, it's frustrating not to be able to vote for this.

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[KScreen] [Bug 355528] Multiple monitor support is erratic

[Nick Cross via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=355528

Nick Cross  changed:

   What|Removed |Added

 CC||k...@goots.org

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[KScreen] [Bug 355528] Multiple monitor support is erratic

[Marcin Śliwiński via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=355528

Marcin Śliwiński  changed:

   What|Removed |Added

 CC||drst...@wp.pl

--- Comment #7 from Marcin Śliwiński  ---
Same problems here. And another one - sometimes, after laptop was shut down
with dual-monitor config, it disables build in display after loging in when
powered on again with no external screen attached. I have to delete kscreen
config files to make it work again.

System version - Arch linux.
kscreen 5.5.3
plasma-desktop 5.5.3

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[KScreen] [Bug 355528] Multiple monitor support is erratic

[Murat Ursavaş via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=355528

--- Comment #6 from Murat Ursavaş  ---
Unfortunately dealing with drivers didn't help. I've installed some missing
display drivers and the behavior is still there. And this time I got the app
launcher in the wrong place (vertical offset).

Switching to VT's didn't help at all. I had to press to the display switch
button of the laptop to enable or disable plugged screens.

I guess, for my particular case, Plasma 5.5.2 is not stable enough. I'll wait
and see what happens, because KDE Plasma is my best DE by far.

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[KScreen] [Bug 355528] Multiple monitor support is erratic

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=355528

cher...@aip.de changed:

   What|Removed |Added

 CC||cher...@aip.de

--- Comment #3 from cher...@aip.de ---
3 Bugs in one. Here on Plasma 5.5.2 on openSUSE Leap on a Lenovo Thinkpad T400
I can confirm the 2nd bug - and I think this is also reported here:
https://bugs.kde.org/show_bug.cgi?id=354386

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[KScreen] [Bug 355528] Multiple monitor support is erratic

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=355528

--- Comment #4 from cher...@aip.de ---
The 2nd issue is also reported here https://bugs.kde.org/show_bug.cgi?id=356725

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[KScreen] [Bug 355528] Multiple monitor support is erratic

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=355528

aappdde...@gmail.com changed:

   What|Removed |Added

 CC||aappdde...@gmail.com

--- Comment #2 from aappdde...@gmail.com ---
I've run into this as well. Usually restarting plasmashell solves the problem,
but it makes you wonder what's going on:
kquitapp plasmashell
kstart plasmashell

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