https://bugs.kde.org/show_bug.cgi?id=461029
Bug ID: 461029
Summary: [Regression with bisect]: "kwin_core: precision lost!
floating value sent to X..."
Classification: Plasma
Product: kwin
Version: 5.26.2
Platform: Compiled Sources
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: core
Assignee: kwin-bugs-n...@kde.org
Reporter: da...@protonmail.com
Target Milestone: ---
After updating from Kwin 5.26.1 to 5.26.2 I got the following on the log:
kwin_core: precision lost! floating value sent to X 2039.5
kwin_core: precision lost! floating value sent to X 1942.5
kwin_core: precision lost! floating value sent to X 1942.5
kwin_core: precision lost! floating value sent to X 1942.5
kwin_core: precision lost! floating value sent to X 2039.5
At the same time, there's corruption on the screen (the windows were not being
repainted when maximized). So I did a bisect and here's the result:
da10d8481af24f7ff7092e5a2da5c5262fdd4011 is the first bad commit
commit da10d8481af24f7ff7092e5a2da5c5262fdd4011
Author: Arjen Hiemstra <ahiems...@heimr.nl>
Date: Mon Oct 24 16:03:52 2022 +0200
Add a helper function to convert QPointF to QPoint using floor instead of
round
In a bunch of cases, we want to floor when converting to QPoint rather
than rounding. As it gets tedious to repeat the same code over and over,
add a helper function.
(cherry picked from commit 2f900d84abd2b3d99c85a63eb7b743eb0761e9bf)
src/libkwineffects/kwineffects.h | 11 +++++++++++
1 file changed, 11 insertions(+)
git bisect start
# status: waiting for both good and bad commits
# bad: [649a573e358f32193715237849ebf5d7e28e14e9] fix compile
git bisect bad 649a573e358f32193715237849ebf5d7e28e14e9
# status: waiting for good commit(s), bad commit known
# good: [1af6a1a708c5e37e7d6d21dcad74806fb72f20f3] Update version number for
5.26.1 GIT_SILENT
git bisect good 1af6a1a708c5e37e7d6d21dcad74806fb72f20f3
# good: [870aee8cdc82fdae7440589ea61dfdb0c79f84e9] inputpanelv1window: never
hide overlay panels
git bisect good 870aee8cdc82fdae7440589ea61dfdb0c79f84e9
# bad: [d78187005432ed02159963fd76554678a9db2e67] Window: Floor rather than
round when doing hitTest for the decoration
git bisect bad d78187005432ed02159963fd76554678a9db2e67
# good: [f28e547330ae4c3c6c4ac97cd6fb7930d8e2e148] Implement a enableRequested
signal for text-input-v3
git bisect good f28e547330ae4c3c6c4ac97cd6fb7930d8e2e148
# bad: [da10d8481af24f7ff7092e5a2da5c5262fdd4011] Add a helper function to
convert QPointF to QPoint using floor instead of round
git bisect bad da10d8481af24f7ff7092e5a2da5c5262fdd4011
# good: [3c07db610bf70796f612016c6c5354ca5c565ebd] wayland: Fix missing
relative motion events
git bisect good 3c07db610bf70796f612016c6c5354ca5c565ebd
# first bad commit: [da10d8481af24f7ff7092e5a2da5c5262fdd4011] Add a helper
function to convert QPointF to QPoint using floor instead of round
*********************************
Does it make sense? So I downgraded to 5.26.1 and everything is working fine.
Thanks!
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