I deleted all printers and waited for CUPS / driverless to find them again.
Here a few CLI outputs (which are small enough so I dare to spost them inline )
$ ls -1 /etc/cups/ppd/
Kyocera_ECOSYS_P6026cdn.ppd
Kyocera-ECOSYS-P6026cdn.ppd
Kyocera_ECOSYS_P6026cdn.ppd.O
Kyocera-ECOSYS-P6026cdn.ppd.O
$ sudo systemctl stop cups-browsed
$ ls -1 /etc/cups/ppd/
Kyocera-ECOSYS-P6026cdn.ppd
Kyocera-ECOSYS-P6026cdn.ppd.O
$ sudo systemctl stop cups-browsed
I see 2 in the GUI, why there are 4 files here - I don't know why.
Seems that cups-browsed adds the "_" separated files
$ lp -d Kyocera-ECOSYS-P6026cdn ~/.bashrc
Anfrage-ID ist Kyocera-ECOSYS-P6026cdn-52 (1 Datei(en))
$ sudo cupstestppd /etc/cups/ppd/Kyocera-ECOSYS-P6026cdn.ppd
/etc/cups/ppd/Kyocera-ECOSYS-P6026cdn.ppd: FAIL
**FAIL** Missing choice *Option18 SDCard in UIConstraints "*KCCollate
CustomBox *Option18 SDCard".
**FAIL** Missing choice *Option18 SDCard in UIConstraints "*Option18
SDCard *KCCollate CustomBox".
WARN Datei einthält gemischt CR, LF, und CR LF Zeilenmenden.
WARN Size "A5" should be "149x210mm".
WARN Size "A6" should be "105x149mm".
WARN Size "B6" should be "128x182mm".
WARN Size "OficioII" should be the Adobe standard name
"FanFoldGermanLegal".
WARN Size "P16K" should be "7,75x10,75".
WARN Size "OficioMX" should be the Adobe standard name "Oficio".
$ lpstat -e
Kyocera-ECOSYS-P6026cdn
$ lpstat -v
Gerät für Kyocera-ECOSYS-P6026cdn:
dnssd://Kyocera%20ECOSYS%20P6026cdn._ipp._tcp.local/?uuid=4509a320-003a-00ad-0042-0025074ef136
$ driverless
ipp://KM15881D.local:631/ipp/print
But where is the "get-printer-attributes-2.0.test" file - I cant find
this file.
$ ipptool -tv ipp://KM15881D.local:631/ipp/print
get-printer-attributes-2.0.test > ~/attrs.txt
ipptool: Unable to open test file get-printer-attributes-2.0.test - No such
file or directory
It seems so confusing to me as there are no reliable on/offs: sometimes the
files are available, sometimes not.
Maybe this outputs help a bit. Hope you see something in there.
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https://bugs.launchpad.net/bugs/1813825
Title:
"driverless" printer workflow has bad usability/ is partly broken
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