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,
