[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[Bug Janitor Service]

https://bugs.kde.org/show_bug.cgi?id=365455

Bug Janitor Service  changed:

   What|Removed |Added

 Status|NEEDSINFO   |RESOLVED
 Resolution|WAITINGFORINFO  |WORKSFORME

--- Comment #49 from Bug Janitor Service  ---
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[Bug Janitor Service]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #48 from Bug Janitor Service  ---
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[Nate Graham]

https://bugs.kde.org/show_bug.cgi?id=365455

Nate Graham  changed:

   What|Removed |Added

  Component|kded|common
 Resolution|--- |WAITINGFORINFO
 Status|REOPENED|NEEDSINFO
 CC||n...@kde.org

--- Comment #47 from Nate Graham  ---
Thank you for the bug report. Unfortunately we were not able to get to it yet.
Can we ask you to please see if you can reproduce the issue with Plasma 5.25 or
5.26?

If you can, please change the status to CONFIRMED when replying. Thanks a lot!

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[Dmitry Nezhevenko]

https://bugs.kde.org/show_bug.cgi?id=365455

Dmitry Nezhevenko  changed:

   What|Removed |Added

 CC||d...@inhex.net

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[Leonard Lausen]

https://bugs.kde.org/show_bug.cgi?id=365455

Leonard Lausen  changed:

   What|Removed |Added

 CC||leon...@lausen.nl

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #46 from darkba...@linuxsystems.it ---
Created attachment 102296
  --> https://bugs.kde.org/attachment.cgi?id=102296=edit
journalctl -b -0 --priority=5

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #45 from darkba...@linuxsystems.it ---
Created attachment 102295
  --> https://bugs.kde.org/attachment.cgi?id=102295=edit
journalctl -b -0

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #44 from darkba...@linuxsystems.it ---
While debugging a multi-monitor issue in both colord-kde and argyllcms I
noticed something weird in the logs:

$ journalctl -b -0 --priority=5 | grep kwin
[...]
nov 18 13:49:00 arch-laptop kwin_x11[998]: Freeze in OpenGL initialization
detected
nov 18 13:49:05 arch-laptop kwin_x11[1077]: kwin_core: Compositing is not
possible
nov 18 13:49:06 arch-laptop kwin_x11[1077]: QXcbConnection: XCB error: 3
(BadWindow), sequence: 1243, resource id: 41943044, major code: 18
(ChangeProperty), minor code: 0
[...]


$ journalctl -b -0 --priority=5 | grep kscreen
nov 18 13:48:43 arch-laptop kdeinit5[949]: kf5.kded: No X-KDE-DBus-ServiceName
found in "/usr/lib/qt/plugins/kf5/kded/kscreen.so"
nov 18 13:48:45 arch-laptop kdeinit5[949]: kscreen.kded: PowerDevil
SuspendSession action not available!
nov 18 13:48:45 arch-laptop kdeinit5[949]: kscreen.kded: Failed to find
a matching mode - this means that our config is corruptedor a different device
with the same serial number has been connected (very unlikely).Falling back to
preferred modes.
nov 18 13:49:23 arch-laptop systemsettings5[1458]:
file:///usr/share/kcm_kscreen/qml/Output.qml:54:5: QML MouseArea: Binding loop
detected for property "width"
[...]


I don't know if it may have something to do with this bug or not, but I'm
attaching a full "journalctl -b 0" and a "journalctl -b -0 --priority=5".

I also noticed that the "disappearing panel" bug introduced with Plasma 5.8 is
intermittent.

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[Nick Cross]

https://bugs.kde.org/show_bug.cgi?id=365455

Nick Cross  changed:

   What|Removed |Added

 CC||k...@goots.org

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=365455

darkba...@linuxsystems.it changed:

   What|Removed |Added

 Status|RESOLVED|REOPENED
 Resolution|UPSTREAM|---

--- Comment #43 from darkba...@linuxsystems.it ---
Intel developers think the issue is not on their end. I'm reopening because I
just noticed that such problem doesn't happen with Gnome on Fedora 25 beta (at
least on Xorg, I didn't manage to use more than two monitors with Wayland
because the button to enable the third one is always grayed out).

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #42 from darkba...@linuxsystems.it ---
Things got worse with Plasma 5.8, now if I start my PC with my external
monitors attached there is no panel anymore. So I have to start the PC with the
mini displayport connector detached, then attach it after Plasma started. Such
a way the panel doesn't disappear.

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[Simon Andric via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

Simon Andric  changed:

   What|Removed |Added

 CC||simonandr...@gmail.com

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #41 from darkba...@linuxsystems.it ---
Upstream bug @Intel: https://bugs.freedesktop.org/show_bug.cgi?id=97531

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #40 from darkba...@linuxsystems.it ---
> @darkbasic: could you try upgrading your Intel drivers?

I already have a recent snapshot on my main system with Plasma 5.7.3:
extra/xf86-video-intel 1:2.99.917+697+g12c14de-1
I don't know about KDE NEON with 5.7.90 git anyway.

> or try switching to the modesettings xorg driver. All major distributions are 
> currently in the 
> process of doing so due to the quality of the Intel driver.

I will quote myself about modesetting:
> I get this issue with both xf86-video-intel and modesetting

I already tried modesetting since the beginning because I know about the Intel
driver being shit.  I'm talking about my main system with Plasma 5.7.3, I
didn't try modesetting on KDE NEON with Plasma 5.7.90 git.

It there is an Intel bug it must be somewhere else in their stack because
modesetting has the very same problem. Kernel 4.4 and 4.7 both are affected.
mesa git is affected too.

P.S.
Crossing my fingers for Zen being great, I really hope to buy an AMD laptop
next time.

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[Martin Gräßlin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #39 from Martin Gräßlin  ---
(In reply to Sebastian Kügler from comment #38)
> @darkbasic: could you try upgrading your Intel drivers?

or try switching to the modesettings xorg driver. All major distributions are
currently in the process of doing so due to the quality of the Intel driver.

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[Sebastian Kügler via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

Sebastian Kügler  changed:

   What|Removed |Added

 Resolution|--- |UPSTREAM
 Status|REOPENED|RESOLVED

--- Comment #38 from Sebastian Kügler  ---
@darkbasic: could you try upgrading your Intel drivers?

We most likely can't do anything in KDE about this problem, as it's a driver /
hardware problem.

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[emes via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #37 from emes  ---
Sorry I forgot to translate "sie" for you in the second date. "sie" means
August of course.
The second upgrade was 2 days later anyway :)

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[emes via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #36 from emes  ---
Hmm, so maybe that why I thought upgrading to KDE Frameworks 5.25 solved to
problem but it was truly solved by upgrading Intel drivers:

Started emerge on: aug 14, 2016 22:41:57 
upgrade ~75 KDE Frameworks 5.25 packages

Started emerge on: sie 16, 2016 21:03:10
1471374481:  >>> emerge (5 of 6)
x11-drivers/xf86-video-intel-2.99.917_p20160812 to /
1471374481:  === (5 of 6) Cleaning
(x11-drivers/xf86-video-intel-2.99.917_p20160812::/usr/portage/x11-drivers/xf86-video-intel/xf86-video-intel-2.99.917_p20160812.ebuild)
1471374481:  === (5 of 6) Compiling/Merging
(x11-drivers/xf86-video-intel-2.99.917_p20160812::/usr/portage/x11-drivers/xf86-video-intel/xf86-video-intel-2.99.917_p20160812.ebuild)
1471374530:  === (5 of 6) Merging
(x11-drivers/xf86-video-intel-2.99.917_p20160812::/usr/portage/x11-drivers/xf86-video-intel/xf86-video-intel-2.99.917_p20160812.ebuild)
1471374532:  >>> AUTOCLEAN: x11-drivers/xf86-video-intel:0
1471374532:  === Unmerging... (x11-drivers/xf86-video-intel-2.99.917_p20160803)
1471374534:  >>> unmerge success:
x11-drivers/xf86-video-intel-2.99.917_p20160803
1471374537:  === (5 of 6) Post-Build Cleaning
(x11-drivers/xf86-video-intel-2.99.917_p20160812::/usr/portage/x11-drivers/xf86-video-intel/xf86-video-intel-2.99.917_p20160812.ebuild)
1471374537:  ::: completed emerge (5 of 6)
x11-drivers/xf86-video-intel-2.99.917_p20160812 to /

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #35 from darkba...@linuxsystems.it ---
Created attachment 100794
  --> https://bugs.kde.org/attachment.cgi?id=100794=edit
Xorg.0.log

> Would be interesting indeed if you can trigger switching the display on by 
> going through a dpms
> cycle, as Martin asked.

After the dpms cycle the right monitor turned on as Martin said! I wouldn't be
surprised if it ends up being yet another Intel bug.

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #34 from darkba...@linuxsystems.it ---
Created attachment 100793
  --> https://bugs.kde.org/attachment.cgi?id=100793=edit
dmesg

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[Sebastian Kügler via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #33 from Sebastian Kügler  ---
Just an observation: The kscreen.log looks completely fine as well. Would be
interesting indeed if you can trigger switching the display on by going through
a dpms cycle, as Martin asked.

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[Martin Gräßlin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #32 from Martin Gräßlin  ---
> qdbus org.kde.KWin /KWin supportInformation after failed attempt

it has two screens shown correctly so from xrandr information it looks correct.

Just sharing something I observed this morning on Wayland: a page flip failed
turning one screen off. I waited for power management setting both screens into
dpms mode, then moved the mouse to exit dpms and look there, both screens are
on again.

Which brings me to a theory: maybe the modesetting fails on the screen and
that's why it goes off? Can you have a look into the xorg log and into dmesg
whether there are any messages related to that?

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #31 from darkba...@linuxsystems.it ---
Created attachment 100753
  --> https://bugs.kde.org/attachment.cgi?id=100753=edit
plasma_backtrace_nomst.log

> Does this always happen with the same monitor? Could you try switching the 
> cables around
> and see if it's random, or if you could pin it down to one of the connectors 
> or displays?

It always happen to the monitor on the right (DP1-1), but simply because it is
the "secondary" monitor of the MST setup. The laptop's mDP cable is attached to
the monitor on the left (DP1-8), the output of which is then attached to the
monitor on the right (DP1-1). If I switch them nothing changes, the "black" one
is always the "secondary".

> If your laptop has an HDMI port, could you hook up one of the Dell displays 
> to that and see
> if it shows the problem as well?

It doesn't have HDMI, but I have an mDP->HDMI adapter if you want. Anyway I
think the problem is MST, so I can simply disable it in the monitor on the left
and the right monitor will be a duplicate, not seen by the system.

This is how I disable MST on the left monitor:
1) https://drive.google.com/open?id=0Bwe9Wtc-5xF1dU5qU0RYQ2ZiT28
2) https://drive.google.com/open?id=0Bwe9Wtc-5xF1eFVqMERfTlVlNms

Here is the video with MST turned off:
https://www.youtube.com/watch?v=a2hgzNzo8PM=youtu.be

First thing to notice: there is no compositor settings window anymore at
startup! This is a good sign, because you are not supposed to see it unless
there are troubles with compositing.

Second thing to notice: no back screens.

Third thing to notice: Crash Reporting Assistant still pops up after disabling
the laptop's main monitor (see attached plasma_backtrace_nomst.log)

> Love your videos and screen setup, by the way. :)

Thanks, I both love and hate my multi-screen setup. I love it because it's
awesome to code with it and a mechanical keyboard. I hate it because I had lots
of multi-screen troubles with Plasma and I love to use Plasma as well :)

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #30 from darkba...@linuxsystems.it ---
Created attachment 100752
  --> https://bugs.kde.org/attachment.cgi?id=100752=edit
plasma_backtrace.log

Also, did you notice the compositor settings window at the start of my previous
video? Here it is:
https://drive.google.com/open?id=0Bwe9Wtc-5xF1dk5JZlg5QXJuV2c
You are not supposed to get it unless something's wrong.

Also in my previous video I didn't notice the Crash Reporting Assistant after
disabling the laptop's main monitor, but it seems plasma crashed. Here is the
log (attached plasma_backtrace.log)

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #29 from darkba...@linuxsystems.it ---
Created attachment 100751
  --> https://bugs.kde.org/attachment.cgi?id=100751=edit
qdbus_KWin_supportInformation

qdbus org.kde.KWin /KWin supportInformation after failed attempt

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #28 from darkba...@linuxsystems.it ---
Created attachment 100750
  --> https://bugs.kde.org/attachment.cgi?id=100750=edit
kscreen.log

kscreen.log after failed attempt

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[Martin Gräßlin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

Martin Gräßlin  changed:

   What|Removed |Added

 CC||mgraess...@kde.org

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[Martin Gräßlin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

--- Comment #27 from Martin Gräßlin  ---
can you post the output of:
qdbus org.kde.KWin /KWin supportInformation

when having the problem? I would like to know what kwin thinks what the screens
look like.

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[KScreen] [Bug 365455] Second external monitor of MST setup does not turn on most of the times

[Sebastian Kügler via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=365455

Sebastian Kügler  changed:

   What|Removed |Added

Summary|Second external monitor |Second external monitor of
   |does not turn on most of|MST setup does not turn on
   |the times   |most of the times
Version|5.7.0   |git

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