weird KDE printing Problem

Tue May 15 10:49:03 BST 2018

Am 2018-05-04 00:22 schrieb Michael Weghorn:
> Hi Norbert,
>
> since this does not really seem to be a question on development, I'd
> suggest to have the further discussion on the "kde" mailing list (meant
> for user questions, etc.) rather than "kde-devel".
>
> About your problem:
>
>> When printing from a KDE App, (tested with kwrite, kate, okular,gwenview), both printers are reported to have "US Letter" sized paper
>> loaded and the output is scaled down to fit on a Letter-sized sheet.
> KDE applications use the Qt print dialog. I'd usually also expect the
> page size to be initialized with the default value for the printer
> (marked with '*' in the lpoptions output).
> This has been fixed for the Qt print dialog a few months ago [1] and is
> going to be part of Qt 5.11, along with some other improvements to the
> print dialog (s. also [2]).
> Since your Qt version is older, that fix is probably not in there yet
> (unless openSUSE has backported it).
>
> I'm not sure what might have caused the switch from A4 to Letter in your
> case (maybe any change in '/etc/papersize' or the locale?).
>
>> Changing the papersize from Letter to A4 in the printer properties dialog is ignored and makes no difference.
> It may be helpful to see what options are finally passed to CUPS. For
> that, you can set 'LogLevel debug' in '/etc/cups/cupsd.conf', restart
> the cups service (command: 'sudo systemctl restart cups.service'), print
> again and have a look at the CUPS log (either /var/log/cups/error_log or
> the journal, depending on what the 'ErrorLog' directive is set to in
> '/etc/cups/cups-files.conf'.
>
> The line that shows the options passed to CUPS is indicated by 'argv[5]'.
>
>
> Regards,
>    Michael
>
> [1] https://codereview.qt-project.org/#/c/213677/
> [2] https://www.kdab.com/better-support-for-cups-features-in-qt-5-11/
>
>
>
> On 2018-05-03 12:53, Norbert Zawodsky wrote:
>> Hello Mailinglist!
>>
>> I wrote this topic already to another mailinglist and asked some of my
>> freinds. But no one seems to have the faintest idea what could cause
>> this problem or how to track it down. So maybe someone of you can help?
>>
>> Distribution: openSuSE 42.3
>>
>> I have 2 HP Color Laserjets attached to the LAN. (192.168.1.131 and
>> 192.168.1.132)
>>
>> Now "lpoptions -p CP3525 -l" reports:
>>
>>    HPCollateSupported/Collation in Printer: True288 *False288
>>    HPOption_500_Sheet_Feeder_Tray3/Tray 3: *True False
>>    HPOption_Duplexer/Duplex Unit: *True False
>>    HPOption_Disk/Printer Disk: True *False
>>    HPOption_PaperPolicy/Paper Matching: *Prompt Scale Crop
>>    HPServicesWeb/Services on the Web: *SupportAndTroubleshooting
>> ProductManuals ColorPrintingAccessUsage OrderSupplies ShowMeHow
>>    HPServicesUtility/Device Maintenance: *DeviceAndSuppliesStatus
>>    Resolution/Printer Resolution: 600dpi *1200dpi
>>    PageSize/Page Size: Letter Legal Executive HalfLetter w612h936 4x6 5x7
>> 5x8 *A4 A5 A6 RA4 B5 B6 W283H425 w553h765 w522h737 w558h774
>> DoublePostcard Postcard Env10 Env9 EnvMonarch EnvISOB5   EnvC5 EnvC6
>> EnvDL Custom.WIDTHxHEIGHT
>>    InputSlot/Paper Source: *Auto Tray1 Tray2 Tray3 Tray1_Man
>>    Duplex/2-Sided Printing: None *DuplexNoTumble DuplexTumble
>>    Collate/Collate: True *False
>>    HPRotate180/Rotate Page 180 deg: *False True
>>    MirrorPrint/Mirror Image: True *False
>>    MediaType/Media Type: *Unspecified Plain HPColorLaserMatte105
>> CardGlossy176220 ExtraHeavyGlossy131175 HPPremiumChoiceMatte120
>> HPColorLaserBrochureMatte160 HPSuperiorLaserMatte160 HPCoverMatte200g
>> HPMattePhoto200 HPPresentationSoftGloss120 HPProfessionalSoftGloss120
>> HPPresentationGlossy130g HPProfessionalLaserGlossy130g
>> HPColorLaserBrochureGlossy160 HPSuperiorLaserGlossy160
>> HPCLaserPhotoGlossy220 Light6074 MidWeight96110 Heavy111130
>> ExtraHeavy131175 Cardstock176220 MidWTGlossy96110 HeavyGlossy111130
>> ColorLaserTransparency Labels Letterhead Envelope Preprinted Prepunched
>> Colored Bond Recycled Rough HPToughPaper OpaqueFilm
>>    HPCMYKInks/CMYK Inks: *DefaultCMYK_Plus SWOP Euro DIC CustomProfile
>>    HPTextNeutralGrays/Text Neutral Grays: *Black ProcessBlack
>>    HPTextHalftone/Text Halftone: Smooth *Detail
>>    HPTextRGB/Text RGB Color: sRGB ImageOptimization Adobe *VividSRGB None
>> CustomProfile
>>    HPGraphicsNeutralGrays/Graphics Neutral Grays: *Black ProcessBlack
>>    HPGraphicsHalftone/Graphics Halftone: Smooth *Detail
>>    HPGraphicsRGB/Graphics RGB Color: *sRGB ImageOptimization Adobe
>> VividSRGB None CustomProfile
>>    HPPhotoNeutralGrays/Photo Neutral Grays: Black *ProcessBlack
>>    HPPhotoHalftone/Photo Halftone: Smooth *Detail
>>    HPPhotoRGB/Photo RGB Color: *sRGB ImageOptimization Adobe VividSRGB
>> None CustomProfile
>>    HPEdgeControl/Edge Control: Off Light *Normal Max
>>    ColorModel/Print Color as Gray: Gray *CMYK
>>
>> since "lpoptions -p M476 -l" reports basically the same, I omit it's
>> output...
>>
>> Both printers are loaded with A4 sized paper and the PageSize option
>> above reports an "*" in front of A4
>> Asking CUPS via it's web-interface it reports "Einstellungen:
>> job-sheets=none, none media=iso_a4_210x297mm sides=two-sided-long-edge"
>> (same for the 2nd printer)
>>
>> printing a CUPS test-page produces a correctly scaled output
>> If I send, for example, a test pdf with lpr to the printer ("lpr -P
>> CP3525 test.pdf") it produces a correctly scaled output.
>>
>> So the printing subsystem looks like correctly working
>>
>> But since the last OS upgrade from openSuse 42.2 to 42.3 I have a
>> problem with printing from KDE Apps.
>>
>> KWrite reports: Version 17.04.2, KDE Frameworks 5.32.0, Qt 5.6.2
>>
>> When printing from a KDE App, (tested with kwrite, kate, okular,
>> gwenview), both printers are reported to have "US Letter" sized paper
>> loaded and the output is scaled down to fit on a Letter-sized sheet.
>> Changing the papersize from Letter to A4 in the printer properties
>> dialog is ignored and makes no difference.
>>
>> Has someone of you an idea how I could hunt this problem? I have no idea
>> where I could start searching..
>>
>> Norbert
>>
>>
Hi Michael,

I followed your suggestion regarding LogLevel debug:

I opened a small PDF with okular, Ctrl-P, Printdialog, selected printer 
CP3525, Preselected paper-size was "Letter", changed to "A4", OK,...

The argv[5] line in cups-log says:

D [15/May/2018:11:08:28 +0200] [Job 10104] argv[5]="Collate finishings=3 
fit-to-page HPBookletScaling=FitPage HPColorSmart=Manual 
HPTextRGB=VividSRGB job-billing media=Letter number-up=1 
number-up-layout=lrtb outputorder=normal page-bottom=12 page-left=12 
page-right=12 page-top=12 portrait print-color-mode=blue 
sides=two-sided-long-edge 
job-uuid=urn:uuid:731b559f-44c9-3bab-6464-3db75f8345f3 
job-originating-host-name=localhost time-at-creation=1526375308 
time-at-processing=1526375308 Duplex=DuplexNoTumble PageSize=Letter"

So the wrong PageSize is passed to cups

Printing the same PDF by "lpr -P CP3525 my.pdf" from commandline 
produves a correctly scaled A4 output and leads to this argv[5] entry:

D [15/May/2018:11:44:05 +0200] [Job 10105] argv[5]="finishings=3 
HPBookletScaling=FitPage HPColorSmart=Manual HPTextRGB=VividSRGB 
number-up=1 print-color-mode=blue 
job-uuid=urn:uuid:c21cabca-dac3-3849-425c-ed17673bbcea job-originating 
host-name=localhost time-at-creation=1526377445 
time-at-processing=1526377445"

/etc/papersize is a 3 bytes file containing "a4"

regards,
Norbert