Did you install libusb-devel before you compiled sane-backends? allan
On Wed, Mar 16, 2016 at 9:29 AM, el-ti <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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: [email protected] >> >>>>>>>> http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel >> >>>>>>>> Unsubscribe: Send mail with subject "unsubscribe your_password" >> >>>>>>>> to [email protected] >> >>>>>>> >> >>>>>>> >> >>>>>>> >> >>>>>> >> >>>>> >> >>>>> >> >>>>> >> >>>> >> >>> >> >>> >> >>> >> >>> -- >> >>> "well, I stand up next to a mountain- and I chop it down with the edge >> >>> of my hand" >> >> >> >> >> >> >> > >> >> >> > -- "well, I stand up next to a mountain- and I chop it down with the edge of my hand" -- sane-devel mailing list: [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject "unsubscribe your_password" to [email protected]
