https://bugs.kde.org/show_bug.cgi?id=464141
Dustin Siebert changed:
What|Removed |Added
Status|REPORTED|RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Dustin Siebert ---
The issue is actually related to this bug in CUPS:
https://github.com/OpenPrinting/cups/issues/421
The bug appears if the snap version of CUPS is installed (for me it was a
hidden installation because Chromium forced the Snap version during the
upgrade, what i didn't see).
Steps to fix:
1. Remove Snap version via: snap remove cups
2. Edit /etc/cups/printers.conf and change the line
Option print-color-mode monochrome
to
Option print-color-mode color
After a reboot the option is persistent instead of switching again to
monochrome, what was caused by the faulty Snap version of CUPS. Now, the
printer prints in color mode as expected for jobs by Okular.
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