Hello Allan, I’m afraid, the cdr-55b didn’t change anything – although I don’t understand this. I also double checked: first I followed your instructions, but thenI unpacked the backends.tar.gz again to apply cdr-55b on the fresh files, because I wanted to make sure, I did not make a mistake. But even then, the scans returned the same results. Is that even possible?
See here: https://de.owncube.com/index.php/s/Dkqvp3O0hJEVPu7 best regards, el-ti Am 18.03.2016 um 12:53 schrieb m. allan noah: > I have attached another patch. We will have to remove the first one, > and add this new one to the source code directory you made before: > > 1. Change into the source directory (update name as required) > cd sane-backends-gitXXXXXX/ > > 2. Remove the old patch (update location as required, perhaps also > ~/Downloads) > cat ~/Downloads/cdr-55a.diff | patch -p1 -R > > 3. Apply the new patch (update location as required, perhaps also ~/Downloads) > cat ~/Downloads/cdr-55b.diff | patch -p1 > > 4. Rebuild, reinstall > make > sudo make install > > 5. Test again. > > allan > > > On Fri, Mar 18, 2016 at 6:04 AM, el-ti <t...@ewetel.net> wrote: > > Oh, I see! > > > > Now I did the scans again, each time power cycling the scanner: > > > > 1. Power on scanner. > > 2. Plug scanner in. > > 3. Start gscan2pdf. > > 4. Adjust settings and scan and save. > > 5. Quit gscan2pdf. > > 6. Plug out scanner. > > 7. Power off scanner. > > > > You can find the results here: > > https://de.owncube.com/index.php/s/wQuYx6dkz5D8Gau > > > > As far as I can see, nothing changed to the previous test. Hope this helps. > > > > el-ti > > > > > > Am 17.03.2016 um 12:20 schrieb m. allan noah: > >> Yes, the patch changed something, you can look at it and see what it > >> did, it is fairly small. The problem is that I don't think it should > >> have changed 240, so if you are seeing a behavior change there, we > >> need to do further investigation. So, I will be more explicit: > >> > >> Please make another set of scans, the same as you last did, but turn > >> the scanner off and back on between each scan. Presumably you will > >> have to stop and restart your scanning program too. I want to see if > >> the earlier scans somehow pollute the later ones. > >> > >> After that, I will walk you thru adjusting the code, and we will try again. > >> > >> allan > >> > >> On Thu, Mar 17, 2016 at 4:28 AM, el-ti <t...@ewetel.net> wrote: > >>> Hmmm, but the patch changed something, didn’t it? Without the patch > >>> 300dpi was wrong colors, now 300dpi is good. Unfortunately now 240dpi is > >>> wrong. > >>> > >>> If it’s too much work to get it running, It’s maybe okay, I normally do > >>> color scans with 300dpi. But I would probably consider getting rid of > >>> this model. > >>> > >>> If by power cycling you mean turning the scanner off and on, before using > >>> it (after installing the patched version) – yes, I always do that. > >>> > >>> best regards, > >>> el-ti > >>> > >>> > >>> Am 16.03.2016 um 22:11 schrieb m. allan noah: > >>>> My patch did not change anything about 240dpi, since you said that was > >>>> already working. I think perhaps there is something else going on > >>>> here. Can you power cycle the scanner after each test? > >>>> > >>>> allan > >>>> > >>>> On Wed, Mar 16, 2016 at 1:45 PM, el-ti <t...@ewetel.net> wrote: > >>>>> Oh! Mea culpa – I missed that point. But now the scanner works again, > >>>>> and the behavior changed! – That’s the good news. Not so good news is, > >>>>> that now I have the following: > >>>>> > >>>>> Resolutions 300 and 600 have the right colors. > >>>>> > >>>>> Scanning with 100,150, 200 and 400 is now: > >>>>> Blue -> Green > >>>>> Green -> Red > >>>>> Red -> Blue > >>>>> > >>>>> Scanning with 240 is now: > >>>>> Blue -> Red > >>>>> Red -> Green > >>>>> Green -> Blue > >>>>> > >>>>> I don’t know if it helps, but I created a pdf document with scans in > >>>>> color mode of the same page with the different resolutions in ascending > >>>>> order: 100,150,200,240,300,400,600 > >>>>> > >>>>> You can get it here: > >>>>> https://de.owncube.com/index.php/s/KaSuVc4vRFWdOk4 > >>>>> > >>>>> What you can also see there, is that there is a color strip on the left > >>>>> side and that the page is a bit shifted horizontally – but this is not > >>>>> our discussed problem at the moment. > >>>>> > >>>>> I hope this helps you. > >>>>> > >>>>> Thanks! > >>>>> el-ti > >>>>> > >>>>> Am 16.03.2016 um 15:01 schrieb m. allan noah: > >>>>>> Did you install libusb-devel before you compiled sane-backends? > >>>>>> > >>>>>> allan > >>>>>> > >>>>>> On Wed, Mar 16, 2016 at 9:29 AM, el-ti <t...@ewetel.net> wrote: > >>>>>>> All right, I’m pretty sure I got everything right, but surprisingly > >>>>>>> the scanner is not detected anymore... ("scanimage -L" only gives > >>>>>>> back the internal notebook camera) – is it even possible, that this > >>>>>>> is caused by the steps above? Or did I do something wrong? > >>>>>>> > >>>>>>> Sorry for all the work… > >>>>>>> > >>>>>>> > >>>>>>> Am 16.03.2016 um 13:24 schrieb m. allan noah: > >>>>>>>> 1. Download sane-backends-git snapshot from: > >>>>>>>> http://www.sane-project.org/snapshots/ > >>>>>>>> > >>>>>>>> 2. In a terminal, cd to the directory where you downloaded the file > >>>>>>>> (perhaps ~/Downloads) > >>>>>>>> cd ~/Downloads > >>>>>>>> > >>>>>>>> 3. Extract the file (update name as required) > >>>>>>>> tar xzf sane-backends-gitXXXXXXXX.tar.gz > >>>>>>>> > >>>>>>>> 4. Change into the source directory (update name as required) > >>>>>>>> cd sane-backends-gitXXXXXX/ > >>>>>>>> > >>>>>>>> 5. Apply the patch (update location as required, perhaps also > >>>>>>>> ~/Downloads) > >>>>>>>> cat ~/Downloads/cdr-55a.diff | patch -p1 > >>>>>>>> > >>>>>>>> 6. Then you need to follow the instructions at > >>>>>>>> http://www.sane-project.org/README.linux That will have you > >>>>>>>> installing > >>>>>>>> an updated version of sane-backends in /usr/local, where it has a > >>>>>>>> reduced change of causing problems for your system. > >>>>>>>> > >>>>>>>> Let me know if you have questions. > >>>>>>>> > >>>>>>>> allan > >>>>>>>> > >>>>>>>> On Wed, Mar 16, 2016 at 6:38 AM, el-ti <t...@ewetel.net> wrote: > >>>>>>>>> Thank you very much for your work. > >>>>>>>>> > >>>>>>>>> Unfortunately, I have no experience with patching something like > >>>>>>>>> this so far. I did some research, though – seems to be quite > >>>>>>>>> doable. I’m familiar with the terminal etc. As I understand this, I > >>>>>>>>> have to apply the diff-file on the original file with the patch > >>>>>>>>> command. So far, so good – but I have no idea, which file it is. I > >>>>>>>>> couldn’t figure out by looking at the diff file. > >>>>>>>>> > >>>>>>>>> If you could tell, on which file I have to apply this, that would > >>>>>>>>> be great! Thanks! > >>>>>>>>> > >>>>>>>>> Tobias > >>>>>>>>> > >>>>>>>>> > >>>>>>>>> Am 16.03.2016 um 01:33 schrieb m. allan noah: > >>>>>>>>>> I have attached a patch for the sane-backends source code. This > >>>>>>>>>> attempts to provide alternate color de-interlacing for your > >>>>>>>>>> scanner. > >>>>>>>>>> It does not attempt to fix any edge cropping issues. Let me know if > >>>>>>>>>> you need more instructions. > >>>>>>>>>> > >>>>>>>>>> allan > >>>>>>>>>> > >>>>>>>>>> On Tue, Mar 15, 2016 at 7:59 PM, m. allan noah > >>>>>>>>>> <kitno...@gmail.com> wrote: > >>>>>>>>>>> Canon scanners often have this variable interlacing at different > >>>>>>>>>>> resolutions, so I am not surprised to see this. However, this > >>>>>>>>>>> particular scanner has the weirdest interlacing that canon does. > >>>>>>>>>>> If > >>>>>>>>>>> you can compile from source, I can send you some patches to try. > >>>>>>>>>>> See > >>>>>>>>>>> http://www.sane-project.org/README.linux > >>>>>>>>>>> > >>>>>>>>>>> allan > >>>>>>>>>>> > >>>>>>>>>>> On Tue, Mar 15, 2016 at 9:17 AM, el-ti <t...@ewetel.net> wrote: > >>>>>>>>>>>> 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 > >>>>>>>>>>>>>>> > >>>>>>>>>>>>>>> > >>>>>>>>>>>>>>> > >>>>>>>>>>>>>> > >>>>>>>>>>>>> > >>>>>>>>>>>>> > >>>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>>>>> > >>>>>>>>>>> > >>>>>>>>>>> > >>>>>>>>>>> -- > >>>>>>>>>>> "well, I stand up next to a mountain- and I chop it down with the > >>>>>>>>>>> edge > >>>>>>>>>>> of my hand" > >>>>>>>>>> > >>>>>>>>>> > >>>>>>>>>> > >>>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>> > >>>> > >>>> > >>> > >> > >> > >> > > > > > -- 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
