[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-03-22 Thread Till Kamppeter
This temporary queue (Kyocera_ECOSYS_P6026cdn) is actually not needed
here. Therefore I have reported this upstream issue on CUPS:

https://github.com/apple/cups/issues/5546

But anyhow, the GUIs need to correctly support temporary print queues of
CUPS.

** Bug watch added: github.com/apple/cups/issues #5546
   https://github.com/apple/cups/issues/5546

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-03-22 Thread Christian González
Exactly:


# lpstat -e
ECOSYS-P6026cdn
Kyocera_ECOSYS_P6026cdn

# lpstat -v
Device for ECOSYS-P6026cdn: socket://192.168.4.2

That makes sense to me - as I could swear that I really  printed on a
printer, and later (maybe after rebooting, the next day etc) I try to
print on the same one, and it doesn't work.

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-03-22 Thread Christian González
First, here the new attrs.txt

** Attachment added: "attrs.txt"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1813825/+attachment/5248523/+files/attrs.txt

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-03-20 Thread Till Kamppeter
I think the problem here is CUPS' own method of generating temporary
queues for discovered driverless printers. gnome-control-center, and
probably other GUIs, like the GTK print dialog, cannot cope with this.
So we leave this bug report assigned to gnome-control-center for now.

Christian, if you stop cups-browsed you have still auto-generated print
queues. This is because CUPS itself kicks in here.

If you run

lpstat -e

you see queue names which you do not see with

lpstat -v

The extra queue names are temporary CUPS queues. These are created by
CUPS if you try to print on them or to access them in general, and they
are removed by CUPS again after 1 minute of inactivity.

gnome-control-center probably gets completely confused by that. It can
have seen such a queue as actual queue, shortly after such a queue was
used, and added it to its list. Now, more than a minute later, the user
clicks on the entry, the queue is not there any more, and he gets
something unexpected, an error message, an empty option dialog, a
"(null):631".

gnome-control-center and all other printing GUIs need to be adapted to
CUPS' temporary print queues.

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-03-20 Thread Till Kamppeter
Christian, both your attached PPD files are auto-generated, and both
pass cupstestppd.

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-03-20 Thread Till Kamppeter
Christian, first, it seems that you did "cupstestppd" on a PPD file
which is not auto-generated:

--
$ 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".
--

This seems to be from a manufacturer-supplied PPD file. The auto-
generated ones do not have "UIConstraints" lines. They also do not
contain mixed line ends.

Also sorry for giving you a wrong "ipptool" command line. Please run the
command line

ipptool -tv ipp://KM15881D.local:631/ipp/print get-printer-
attributes.test > ~/attrs.txt

The file get-printer-attributes-2.0.test only came with a later CUPS
version.

Please attach the attrs.txt file.

*.O files are generated by CUPS, to put the original version of a PPD
file when they change or replace it. Only the files without ".O" are
relevant for their print queue.

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-03-14 Thread Sebastien Bacher
@Clint, that seems another issue, could you maybe open a new bug about
that one?

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-03-14 Thread Clint Steed
If I can expand upon duplex printing I have encountered an issue in the control 
centre 18.10 too. 
When enabling duplex in gnome-control-center it does not work,

$>lpoptions -l
...
Duplex/Two-sided: *None DuplexNoTumble DuplexTumble
...

but when doing so in system-config-printer it does

$>lpoptions -l
...
Duplex/Two-sided: None *DuplexNoTumble DuplexTumble
...

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-03-02 Thread Christian González
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".
WARNDatei einthält gemischt CR, LF, und CR LF Zeilenmenden.
WARNSize "A5" should be "149x210mm".
WARNSize "A6" should be "105x149mm".
WARNSize "B6" should be "128x182mm".
WARNSize "OficioII" should be the Adobe standard name 
"FanFoldGermanLegal".
WARNSize "P16K" should be "7,75x10,75".
WARNSize "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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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-03-02 Thread Christian González
Second file. The printer is added automatically twice. Maybe this is
because the printer has a print server, which exports the printer again
and announces it to the network? KM15881D.local is the network name of
the printer.

** Attachment added: "autogenerated 2. ppd file"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1813825/+attachment/5242803/+files/Kyocera_ECOSYS_P6026cdn%40KM15881D.local.ppd

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-03-02 Thread Christian González
This file is named .0 because I have the printer installed with a custom
ppd file (from kyocera) manually - with the same name, so I think cups
adds the .0 automatically.

** Attachment added: "IPP PPD file"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1813825/+attachment/5242802/+files/Kyocera-ECOSYS-P6026cdn.ppd.0

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-02-20 Thread Christian González
one shouldn't make promises. Follows ASAP. Give me a few days.

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-02-19 Thread Till Kamppeter
Christian, where is the rest which you wanted to post the day after Jan
30?

** Changed in: gnome-control-center (Ubuntu)
   Status: New => Incomplete

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-02-19 Thread Sebastien Bacher
** Changed in: gnome-control-center (Ubuntu)
   Status: Incomplete => New

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-01-30 Thread Christian González
First small thing: stopping cups-browsed dowsn't change anything. Even when 
stopped, deleting a driverless printer lets it popup again after a few seconds.
Rest tomorrow.

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-01-30 Thread Till Kamppeter
First, driverless printers (automatically created queues for IPP
printers) can be generated by cups-browsed and by CUPS.

So as a first approach you could try to stop cups-browsed to see whether
you still get auto-created printers or not.

sudo systemctl stop cups-browsed

stops cu[ps-browsed and

sudo systemctl start cups-browsed

starts it again. Please tell whether this makes the auto-created printer
go away or whether it changes its behavior to the better or to the
worse.

Another point to investigate is the PPD file (/etc/cups/ppd/.ppd) of the auto-created printer. If it is not present or broken,
the GUI can misbehave. The PPD files are automatically generated based
on information polled from the printer via IPP. The IPP 2.x standards
require that the printer provides sufficient information.

Print queues auto-created by cups-browsed are full-featured CUPS queues
and are present all the time while the printer is turned on and cups-
browsed is running. So they have a PPD file all the time.

Print queues auto-created by CUPS do only temporarily appear. They are
created when a job is printed and they stay only for 1 minute after the
job finishes. These queues are created purely by CUPS, cups-browsed does
not need to be running.

So check the presence of

/etc/cups/ppd/Kyocera_ECOSYS_P6026cdn.ppd

Does it exist? Please attach it.

If it does not exist, run following command:

lp -d Kyocera_ECOSYS_P6026cdn ~/,bashrc

and post the screen output here. Does the job get printed?

Then immediately check the presence of

/etc/cups/ppd/Kyocera_ECOSYS_P6026cdn.ppd

Does it exist? Please attach it.

You can also check by yourself:

sudo cupstestppd /etc/cups/ppd/Kyocera_ECOSYS_P6026cdn.ppd

Does this give any FAILs? Please post the output here.

You can also display the options defined by a printer's PPD file via

lpoptions -p Kyocera_ECOSYS_P6026cdn -l

If the queue is a temporarily auto-created queue from CUPS you most
probably will need to run this command within 1 minute after printing.

You can list queues which CUPS would auto-generate on-demand via

lpstat -e

The queues listed here but not listed by

lpstat -v

are queues which CUPS creates on-demand.

A problem is that the GUIs often do not fully support such temporary,
on-demand queues. Therefore we keep cups-browsed on Ubuntu so that we
get permanent auto-generated queues.

Please also run the following command (printer must be turned on):

driverless

This will give you the printer's IPP URI as output. Please post it here.

ipptool -tv  get-printer-attributes-2.0.test > attrs.txt

Replace  by the URI you obtained with the "driverless" command and
attach the output file, attrs.txt to this bug report. This is the
information which gets polled from the printer to auto-generate the PPD
file.

Please do not compress and do not package together any of the files we
ask you to attach. Please attch them one-by-one, so that one can easily
read them out of the browser when reading this bug report. Thanks.

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-01-30 Thread Sebastien Bacher
It seems you used gdb just right yes.

I was expecting those warnings to print when you try to open the printer
options/details since those dialogs show empty and the warning looks
like they add with missing widgets. Oh well, thanks for trying :)

At this point we should wait for Till (who is the maintainer of the
print stack in Ubuntu) to comment, maybe he has more ideas on the issue

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-01-30 Thread Christian González
Ok; I never used gdb before, just visual debuggers.
I'm not sure this is not a blind alley. The "gtk_container_add warning" is not 
reproducible and has IMHO nothing to do with this bug(s) (just IMHO).

As far as I understood, "b g_log" sets a breakpoint at the g_log() function, 
right?
Just too understand right; I first have to set "b g_log", and then "run" the 
program, right, and "c" means "continue".
I tried everything here, including deleteing the printer, and watching it 
respawn. Only logs I got was:

Thread 1 "gnome-control-c" hit Breakpoint 1, g_log 
(log_domain=log_domain@entry=0x556b6a97 "printers-cc-panel", 
log_level=log_level@entry=G_LOG_LEVEL_DEBUG, 
format=format@entry=0x556b8428 "Could not check 'Clean' maintenance 
command: %s") at ../../../../glib/gmessages.c:1428
1428in ../../../../glib/gmessages.c

Which seems completely unrelated to me.

BTW: system-config-printer does NOT show the "driverless" printer at
all.

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-01-30 Thread Sebastien Bacher
Thanks for the info, the logs don't have much though :/

The journal has that 
gnome-control-c[31150]: gtk_container_add: assertion 'GTK_IS_CONTAINER 
(container)' failed

It would be interesting to get a backtrace of that warning, unsure if
you know your were around debugging enough to do that though?

Basically you would need to
- enable the debug packages repository as explained on 
https://wiki.ubuntu.com/Debug%20Symbol%20Packages and install the 
gnome-control-center-dbgsym libgtk-3-0-dbgsym libglib2.0-0-dbgsym at least
- get a backtrace using gdb, the principle is explained on 
https://wiki.ubuntu.com/Backtrace but to get the one from the log you would 
need to "b g_log" and type "c" until you get to a call corresponding to the 
gtk_container_add warning

If you want to try that it would be nice, if it's too technical for you
that's fine


Reading the description again I think the issues are 

1- there is no easy way to "block" a specific ipp printer to be auto-
added, which can either be a feature missing from cups or one that
exists but has no UI interface, Till should know about that

2- the 'cups-pk-helper: setting default printer to
Kyocera_ECOSYS_P6026cdn failed: client-error-not-found' error, which is
probably a problem on the cups/cups-pk-helper side. It's weird that
nothing got logged about in the journal or cups logs though...

3- the settings UI not dealing well without the 'situation' (unsure what
bits are confusing it though)

Does system-config-printer deal works better? Does it list the right
printer and allow you to see the options or does it have issues as well?

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-01-30 Thread Christian González
** Attachment added: "cups_error_log"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1813825/+attachment/5234066/+files/cups_error_log

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-01-30 Thread Christian González
I'm sorry to write "more than" one problems into one bug, but from a users POV 
they are all the same - seen as "usability" bug. If you tell mo more how I can 
help, I can also file separate ones if this is needed. But to gather 
information, maybe it's best to leave it ATM as one?
Logs attached, irrelevant parts snipped.


** Attachment added: "log"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1813825/+attachment/5234065/+files/journalctl.log

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Title:
  "driverless" printer workflow has bad usability/ is partly broken

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-01-29 Thread Sebastien Bacher
Thank you for your bug report. Could you attach your journalctl log from a boot 
where you triggered the issues described?
Could you also add your logs from /var/log/cups?

Till, do you have any idea about those issues?

** Changed in: gnome-control-center (Ubuntu)
   Importance: Undecided => Low

** Changed in: gnome-control-center (Ubuntu)
   Status: New => Incomplete

** Changed in: gnome-control-center (Ubuntu)
 Assignee: (unassigned) => Till Kamppeter (till-kamppeter)

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Title:
  "driverless" printer workflow has bad usability/ is partly broken

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[Bug 1813825] Re: "driverless" printer workflow has bad usability/ is partly broken

2019-01-29 Thread Christian González
Additionally, since "driverless" printing, I always have a printer named
"print" in my printing dialog, which I can't print to, and can't delete
neither. Print jobs are denied at any time there.

** Attachment added: "GNOME printing dialog"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1813825/+attachment/5233875/+files/additional%20printer.png

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Title:
  "driverless" printer workflow has bad usability/ is partly broken

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