Hi,

If there's a way to provide more info (even with minimal recompilation), I'd be glad to. Fixing this freeze can't happen to soon.


Running kwin and plasmashell from the terminal I get the following outputs when the freeze happens:

Currrent active notifications: QHash(("notification 211", "Network managementBluetooth (A0:E4:53:AC:F7:07)"))
Guessing partOf as: 0
New Notification: "Xperia Z1 Compact Network (nap)" "Connection 'Xperia Z1 Compact Network (nap)' deactivated." -1 & Part of: 0
QXcbClipboard::setMimeData: Cannot set X11 selection owner
kde.systemtray: Wrong IconThemePath "/home/alex/.dropbox-dist/dropbox-lnx.x86_64-12.4.22/images" : too short or does not end with 'icons' kde.systemtray: Wrong IconThemePath "/home/alex/.dropbox-dist/dropbox-lnx.x86_64-12.4.22/images" : too short or does not end with 'icons'
[kde.systemtray: Wrong IconThemePath - Repeated endlessly]
QXcbConnection: XCB error: 2 (BadValue), sequence: 31522, resource id: 54525973, major code: 142 (Unknown), minor code: 3 QXcbConnection: XCB error: 2 (BadValue), sequence: 31554, resource id: 155189268, major code: 142 (Unknown), minor code: 3 QXcbConnection: XCB error: 2 (BadValue), sequence: 31580, resource id: 65011733, major code: 142 (Unknown), minor code: 3 QXcbConnection: XCB error: 2 (BadValue), sequence: 31593, resource id: 54525973, major code: 142 (Unknown), minor code: 3 QXcbConnection: XCB error: 2 (BadValue), sequence: 31606, resource id: 150994972, major code: 142 (Unknown), minor code: 3 QXcbConnection: XCB error: 2 (BadValue), sequence: 31621, resource id: 60817459, major code: 142 (Unknown), minor code: 3

However, the QXcbConnection part seems unrelated, since it is not always correlated with the notification and the freeze. I've also attached .xsession-errors from the last minutes when this reproduce, but to me it seems to not contain anything related.

Alex


On 11/10/16 01:20, Alex Dănilă wrote:
Hola!

I believe this is rather and interaction between KWin and Plasmashell. If I stopped the Plasmashell process, the freeze doesn't happen anymore (those notifications are drawn at the top of the screen in small windows). A further argument for this idea is that after the freeze the screen goes one "frame" back, and that the music and cursor are not affected.

I'll note that after restarting Plasmashell this doesn't happen as reliably as before.

However, if you know a good way of triggering this kind of notifications, it will be my pleasure to do it.

Thank you,
Alex

On 10/10/16 13:14, Maximiliano Curia wrote:
¡Hola Alex!

El 2016-10-08 a las 22:32 +0300, Alex Dănilă escribió:
Package: kwin-x11 Version: 4:5.7.4-1 Severity: normal

The entire screens freeze for a couple of seconds (3-4, but sometimes seemed close to 10) everytime notifications from the tray are about to scroll down or disappear. This only affects drawing of screen content, it doesn't affect sound or cursor motion.

If relevant, the particular tray notifications are about bluetooth devices, I'll attach a screenshot with this. The particular order is like this: -two messages (M1 - connection deactivated, M2 - connection timed out) appear one above the other -2-3 seconds pass -freeze -2 -freeze ends -M1 disappears, M2 animates going down -messages reappear and animate again, but without freezes.

I'll send a screenshot after the bug is created, and if possible a recording.

As reported it seems that the issue is bluetooth specific, and it might be caused by an underlying issue of the bluetooth kernel module or hardware device. In my limited tests I couldn't reproduce this behaviour in my laptop.

Would it be feasible for you to test this multiple bluetooth notifications in a different desktop environment in order to rule out a kernel/hardware issue?

Can you reproduce this triggering a different type of notifications?

Happy hacking,


Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
kdeinit5: PID 15399 terminated.
kdeinit5: Got EXEC_NEW 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so' from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so'
Qt: Session management error: networkIdsList argument is NULL
Wanting MIME Type: "inode/directory"
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Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so'
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
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Wanting MIME Type: "inode/directory"
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Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
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Wanting MIME Type: "inode/directory"
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Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
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Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
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Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
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kdeinit5: PID 27162 terminated.
Wanting MIME Type: "inode/directory"
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Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so'
Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
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Wanting MIME Type: "inode/directory"
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kdeinit5: PID 15415 terminated.
Wanting MIME Type: "inode/directory"
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Wanting MIME Type: "inode/directory"
Wanting MIME Type: "inode/directory"
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so'
Wanting MIME Type: "inode/directory"
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Wanting MIME Type: "inode/directory"
kf5.kio.core: Refilling KProtocolInfoFactory cache in the hope to find 
"baloosearch"
kdeinit5: PID 15819 terminated.
kf5.kio.core: Refilling KProtocolInfoFactory cache in the hope to find 
"baloosearch"
kf5.kio.core: Refilling KProtocolInfoFactory cache in the hope to find 
"baloosearch"
kf5.kio.core: Refilling KProtocolInfoFactory cache in the hope to find 
"baloosearch"
kf5.kio.core: Refilling KProtocolInfoFactory cache in the hope to find 
"baloosearch"
kf5.kio.core: Refilling KProtocolInfoFactory cache in the hope to find 
"baloosearch"
kf5.kio.core: Refilling KProtocolInfoFactory cache in the hope to find 
"baloosearch"
kdeinit5: PID 15409 terminated.
kf5.kio.core: Refilling KProtocolInfoFactory cache in the hope to find 
"baloosearch"
kidle: On postponeBreak !! 300
********** resetAfterTinyBreak !!
********** resetAfterTinyBreak !!
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so'
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so'
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so'
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so'
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so'
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so'
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so'
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so'
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so'
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so'
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so'
********** resetAfterTinyBreak !!
kdeinit5: PID 28861 terminated.
kdeinit5: PID 28853 terminated.
kdeinit5: PID 28889 terminated.
kdeinit5: PID 28893 terminated.
kdeinit5: PID 28854 terminated.
kdeinit5: PID 28857 terminated.
kdeinit5: PID 28864 terminated.
kdeinit5: PID 28855 terminated.
kdeinit5: PID 28884 terminated.
kdeinit5: PID 28877 terminated.
kdeinit5: PID 28881 terminated.
********** resetAfterTinyBreak !!
********** resetAfterTinyBreak !!
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so' 
from launcher.
kdeinit5: preparing to launch 
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so'
kf5.kio.core: Refilling KProtocolInfoFactory cache in the hope to find ""
"0 instead of 1 arguments to message {<p>You are attemptin...} supplied before 
conversion."

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