Package: libqt5printsupport5
Version: 5.12.5+dfsg-8
Severity: important
I have an up-to-date unstable system with CUPS and cups-filters
installed. cups-browsed is not installed.
The Qt print dialog has two entries: ENVY4500 and LaserJet_300_desktop.
The ENVY is an IPP printer on the network and the LaserJet is an
advertised queue on a remote CUPS server. The enumeration is done via
DNS-SD from the printer and the server and both devices are capable of
two-sided printing. All ok up to there.
Looking under Options, the duplex options are greyed out. Furthermore,
"Advanced" under "Properties" is also greyed out. The latter means that
a user cannot set values for Media Type, Color Model and Print Quality.
Rather a disadvantage, I would have thought. Here is an output from
querying the printer:
brian@cupstest:~$ lpoptions -p envy4500 -l
PageSize/Media Size: 100x150mm 111.76x152.4mm 3.5x5 3.5x5.Borderless 3x5 4x6 4x6.Borderless 5x7 5x7.Borderless 5x8 8x10 8x10.Borderless *A4 A4.Borderless A5 A6 A6.Borderless B5 Env10 EnvA2 EnvC5 EnvC6 EnvChou3 EnvChou4 EnvDL EnvMonarch EnvPersonal Executive ISOB5 Legal Letter Letter.Borderless Postcard Postcard.Borderless Statement Custom.WIDTHxHEIGHT
MediaType/Media Type: *Stationery PhotographicGlossy
ColorModel/Output Mode: *RGB Gray Gray16 DeviceGray DeviceRGB AdobeRGB
Duplex/Duplex: *None DuplexNoTumble DuplexTumble
cupsPrintQuality/cupsPrintQuality: Draft *Normal High
brian@cupstest:~$
If the printer or print queue is printed to, CUPS forms a temporary,
local queue and a PPD is generated in /etc/cups/ppd from the queries
made. This queue exists for a minute and during that time the duplex and
Advanced options are available in the Qt dialog.
It seems to me that the dialog is not querying either printer or queue
to get their attributes to display but, OTOH, is happy to deal with
local queues, which is what cups-browsed supplies. It would be good to
take full advantage of what CUPS offers and fix this unsatisfactory
behaviour.
Regards,
Brian.