How to debug printing?
For some reason printing from Evolution doesn't work anymore. It lists all my printers from CUPS just fine but after I hit print Evolution throws an error "Printing failed." "The printer replied "Printer not found". See the screenshot:
I tried to start Evolution with debugging on:
CAMEL_DEBUG=all evolution
but only what I got when the error occurs is:
mail_printer_print_failed_cb
mail_printer_print_finished_cb
And there's nothing in the CUPS' logs.
The same thing happens if I try to select "Print to File" (PDF print) from the Print dialog.
Printing works just fine from other GTK apps: Gedit for example. And it works also from QT/other apps like Kate, Chromium, Firefox, LibreOffice etc. This happens only with Evolution.
So my question is: How can I debug more this issue? I'm using my own compiled version of Evolution (from git 2020-07-30) and I'm wondering if that's the reason. DE: KDE Plasma 5.18.5, distro: openSUSE Leap 15.2.