I have not exactly the same problem but it is probably related. On Ubuntu 18.04.3, i choose Duplex "Long Edge" but it print a single- sided PDF document.. It was working on Ubuntu 16.04.x.. I tried Ubuntu 19.04 and it works too.
I use Evince for my PDF. If i choose another pdf reader like qpdfview it's works like expected. I tried lp command for testing and it's work: lp -d MP-2352 -o Duplex=DuplexNoTumble testfile.pdf I also tried to print a text document from gedit with Duplex "Long Edge" and it's not working. I got one side page. A document printed with LibreOffice works like expected. We use Ubuntu 18.04 on our company and is important to fix it because we are now unable to print PDF documents with two-side.. Thanks. Below some log: ... Filetype: PDF Neither PDF renderer command line nor Ghostscript-based renderer command line found Driver does not understand PDF input, converting to PostScript Storing temporary files in /var/spool/cups/tmp Starting process \"pdf-to-ps\" (generation 1) Printer make and model: NRG MP 2352 PS3 Running command line for pstops: pstops 44555 john testfile.pdf 1 \' cups-browsed cups-browsed-dest-printer=\1137\ xxx.xxx.xxx.xxx:631/MP-2352\ Duplex=DuplexNoTumble finishings=0 InputSlot=Auto job-uuid=urn:uuid:8023a1dd-8f1f-3e58-58b2-eb77f271e0d5 JobType=Normal MediaType=Auto OutputBin=Default PageSize=A4 Password=None print-quality=0 StapleLocation=None UserCode=None pdftops- max-image-resolution=300 pdftops-renderer=pdftops job-originating-host- name=xxx.xxx.xxx.xxx date-time-at-creation= date-time-at-processing= time-at-creation=1566373945 time-at-processing=1566373945\' ... Found: %%BeginFeature: *Duplex None Option: Duplex=None Setting option Found: %% FoomaticRIPOptionSetting: Duplex=None Option: Duplex=None Setting option ... @PJL SET DUPLEX=OFF ... I also ask question here but not answer until now: https://askubuntu.com/questions/1167331/ubuntu-18-04-duplex-long-edge-printing-mode-selected-but-not-working -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1782719 Title: Duplex not working upon update to 2.2.7-1ubuntu2.1 Status in cups package in Ubuntu: Confirmed Bug description: I am using ubuntu 18.04 LTS. After an automatic update of libcups (and related) from 2.2.7-1ubuntu2 to 2.2.7-1ubuntu2.1 I have been unable to print double-sided, e.g., printing a pdf from evince using the standard printer dialog. I have not changed the printer or printer drivers during this and before everything was working fine. I suspect that the option that is used for duplex printing is has changed and is wrong now. It seems to be "DuplexNoTumble", see $ lpoptions -l | grep -i duplex Duplex/Duplex: *None DuplexNoTumble DuplexTumble After using evince and the standard printer dialog to issue a print job where I selected "Long Edge (standard)" for the "Two Sided" option, I see the following in the cups error log: $ cat /var/log/cups/error_log | grep -i duplex D [20/Jul/2018:09:30:36 +0200] [Job 39] argv[5]="RPSBitsPerPixel=1BitsPerPixel InputSlot=Auto RPSRGBcorrect=DetailBright RPSDitherType=Auto RIwmSize=36 RIBannerPageMediaType=Auto LockedPrintPassword=None RIWMText=Confidential Rcmyksimulation=Off RIwmAngle=45Deg Booklet=None RPSColorRendDict=Auto RIPaperPolicy=PromptUser RPSBlackMode=gray noRPSColorUniversalDesign PageSize=A4.FullBleed JobType=Normal noRIBannerPagePrint RIPrintMode=0rhit MediaType=Auto RIRotateBy180=Off RIwmTextStyle=Gray RIPunch=None RIBannerPageInputSlot=Auto ColorModel=Gray Rimagesm=Off number-up=1 noRPSBlackOverPrint RIOrientOvr=Off StapleLocation=None Resolution=600dpi DocServerPassword=None RPSColorSep=None RIFoldType=None UserCode=None noCollate Duplex=DuplexNoTumble RIwmFont=HelveticaB RIWatermark=Off OutputBin=Default job-uuid=urn:uuid:10bf31c1-fbcf-31fd-4093-04b4cc248849 finishings=53 job-originating-host-name=localhost date-time-at-creation= date-time-at-processing= time-at-creation=1532071836 time-at-processing=1532071836" D [20/Jul/2018:09:30:36 +0200] [Job 39] Added option Duplex D [20/Jul/2018:09:30:36 +0200] [Job 39] Pondering option \'Duplex=DuplexNoTumble\' D [20/Jul/2018:09:30:36 +0200] [Job 39] Running command line for pstops: pstops 39 username \'filename\' 1 \'RPSBitsPerPixel=1BitsPerPixel InputSlot=Auto RPSRGBcorrect=DetailBright RPSDitherType=Auto RIwmSize=36 RIBannerPageMediaType=Auto LockedPrintPassword=None RIWMText=Confidential Rcmyksimulation=Off RIwmAngle=45Deg Booklet=None RPSColorRendDict=Auto RIPaperPolicy=PromptUser RPSBlackMode=gray noRPSColorUniversalDesign PageSize=A4.FullBleed JobType=Normal noRIBannerPagePrint RIPrintMode=0rhit MediaType=Auto RIRotateBy180=Off RIwmTextStyle=Gray RIPunch=None RIBannerPageInputSlot=Auto ColorModel=Gray Rimagesm=Off noRPSBlackOverPrint RIOrientOvr=Off StapleLocation=None Resolution=600dpi DocServerPassword=None RPSColorSep=None RIFoldType=None UserCode=None Duplex=DuplexNoTumble RIwmFont=HelveticaB RIWatermark=Off OutputBin=Default job-uuid=urn:uuid:10bf31c1-fbcf-31fd-4093-04b4cc248849 finishings=53 job-originating-host-name=localhost date-time-at-creation= date-time-at-processing= time-at-creation=1532071836 time-at-processing=1532071836\' D [20/Jul/2018:09:30:37 +0200] [Job 39] slow_collate=0, slow_duplex=0, slow_order=0 D [20/Jul/2018:09:30:37 +0200] [Job 39] Found: %%BeginFeature: *Duplex DuplexNoTumble D [20/Jul/2018:09:30:37 +0200] [Job 39] Option: Duplex=DuplexNoTumble Moreover, when trying to print from console I discovered that $ lp -o Duplex=DuplexNoTumble whatever.pdf prints single-sided, whereas $ lp -o sides=two-sided-long-edge whatever.pdf successfully prints double-sided. 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