https://bugs.kde.org/show_bug.cgi?id=501247
Bug ID: 501247
Summary: Shadow Rendering Error w/ Night Light/Built-in Color
Profile on Prefer Efficiency
Classification: Plasma
Product: kwin
Version: 6.3.2
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: night color
Assignee: kwin-bugs-n...@kde.org
Reporter: ramsburgmich...@tutanota.com
Target Milestone: ---
SUMMARY
• With always-on "Night Light" enabled (default settings) and my monitor's
"Built-in" color profile on "Prefer efficiency" my shadows have a very
noticeable red tinge/opaqueness on black backgrounds.
I am using an AMD Radeon RX 6900 XT and a Dell S2421HGF (non-HDR). This
previously wasn't an issue when the color changes hit with 6.3, although I'm
not exactly sure when this broke for me. Probably with 6.3.2, as I didn't seem
to notice this on 6.3.1.
OBSERVED RESULT
https://files.catbox.moe/bw9hii.jpg
EXPECTED RESULT
Shadows being unnoticeable/black on a dark/black background (and not having a
red tinge).
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux 6.13.5-zen1-1-zen (64-bit)
KDE Plasma Version: 6.3.2
KDE Frameworks Version: 6.11.0
Qt Version: 6.8.2
ADDITIONAL INFORMATION
• When I use the "None" color profile and "Prefer efficiency" OR "Prefer color
accuracy" everything renders as expected besides dark blues (which render more
purple than blue), although I suspect that is working as intended or is a quirk
of my monitor with night light on? It wasn't an issue prior to 6.3. I was
unable to take a photo that demonstrates the problem. Here is a link to the
background which renders unexpectedly: https://files.catbox.moe/dhu4lz.png
• When using the "Built-in" color profile and "Prefer color accuracy"
everything is working as intended.
• When night light is disabled, everything is perfectly fine, including dark
blues, regardless of settings.
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