Unfortunately, yes. I uninstalled "cndrvsane-drc125" and restartet the system. The color shift is still there.
And there is also the problem, that there is a 1/2 cm cut on the long edge of the scanned page (the "duplex-offset" option only handles the short edge) – but I guess this is another problem. If you need more information, do not hesitate to tell me. el-ti Am 15.03.2016 um 12:41 schrieb m. allan noah: > If you uninstall the Canon "DR-C125 Driver for Linux V1.0 (v1.0)" > software, does this color shift still happen? > > allan > > On Tue, Mar 15, 2016 at 7:37 AM, el-ti <t...@ewetel.net> wrote: > > The system is using the libsane version from the PPA: > > 1.0.26-git20160305-wily0 > > > > It was installed above the one from Ubuntu’s repositories, when I added the > > PPA. > > > > el-ti > > > > Am 15.03.2016 um 12:22 schrieb m. allan noah: > >> You have installed both sane-backends, and canon's driver? Which one > >> are you using? Assuming you are actually using sane-backends, we will > >> have to modify the code to control the color descrambling. > >> > >> allan > >> > >> On Tue, Mar 15, 2016 at 6:08 AM, el-ti <t...@ewetel.net> wrote: > >>> Hello, > >>> > >>> I have an appendix to make – maybe someone has a hint for me, why the > >>> scanner behaves really strange: > >>> > >>> Depending on the scanning resolution, the shifting on the color range is > >>> different! I used the following command to test this: > >>> > >>> scanimage --batch --source "ADF Duplex" --page-width 210 > >>> --page-height=297 -l 0 -t 0 -x 210 -y 297 --mode Color --resolution 300 > >>> > >>> Then I tried all available resolutions: 100, 150, 200, 240, 300, 400, > >>> 600. The results are strange: > >>> > >>> Scanning with 100,150,200 gives me: > >>> Blue -> Red > >>> Red -> Green > >>> Green -> Blue > >>> > >>> Scanning with 300 and 400 gives me: > >>> Blue -> Green > >>> Green -> Red > >>> Red -> Blue > >>> > >>> And scanning with 240 and 600 shows the RIGHT colors. > >>> > >>> How is that possible? And how can this problem be solved? > >>> > >>> > >>> I installed Rolf Bensch’s PPA > >>> (https://launchpad.net/~rolfbensch/+archive/ubuntu/sane-git), because it > >>> solved the back page cutting problem when scanning Duplex. (see > >>> http://permalink.gmane.org/gmane.comp.graphics.scanning.sane.devel/24903) > >>> > >>> Other than that, I only installed the Canon "DR-C125 Driver for Linux > >>> V1.0 (v1.0)". > >>> > >>> Any hint is appreciated! > >>> el-ti > >>> > >>> Am 04.03.2016 um 10:59 schrieb el-ti: > >>>> Dear Sane-developers and users, > >>>> > >>>> through this very helpful discussion > >>>> (http://permalink.gmane.org/gmane.comp.graphics.scanning.sane.devel/24903), > >>>> I managed to get my Canon Scanner working in Duplex without cutting 1 cm > >>>> of the back page. > >>>> > >>>> Everything seems to work fine. However, I discovered a very strange > >>>> behaviour regarding the colour management: When scanning in simplex > >>>> mode, everything works fine. There is no page cutting and colours are as > >>>> they should be. But in duplex mode, the colours are somehow shifted on > >>>> the colour range: Blue is scanned as green, green is scanned as red, red > >>>> is scanned as blue (for both back and front page). > >>>> > >>>> Is there an easy solution for this? Or did I forget to install something? > >>>> > >>>> Thank you very much! > >>>> el-ti > >>>> > >>> > >>> > >>> -- > >>> sane-devel mailing list: sane-devel@lists.alioth.debian.org > >>> http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel > >>> Unsubscribe: Send mail with subject "unsubscribe your_password" > >>> to sane-devel-requ...@lists.alioth.debian.org > >> > >> > >> > > > > > -- sane-devel mailing list: sane-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject "unsubscribe your_password" to sane-devel-requ...@lists.alioth.debian.org