https://bugs.kde.org/show_bug.cgi?id=371537
Bug ID: 371537
Summary: Temporary freeze when showing multiple tray
notifications
Product: kwin
Version: 5.8.2
Platform: Debian testing
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: nuor...@gmail.com
The entire screens freeze for some 5 seconds when 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. 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 for 5 seconds
-M1 disappears, M2 animates going down
-messages reappear and animate again, but without freezes.
When the freeze ends, the first image drawn on the displays is actually a
"frame" before the one seen during the freeze. Suppose we have a sequence of
frames: f0, f1, f2 (freeze here, f2 shown for 5 seconds), f1, f3, f4, etc.
If plasmashell is stopped, this bug does not happen and the notifications are
shown in small windows at the top of the main screen.
Reproducible: Always
Original bug here:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=840141
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