https://bugzilla.novell.com/show_bug.cgi?id=843885 https://bugzilla.novell.com/show_bug.cgi?id=843885#c1 Johannes Meixner changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO CC| |jsmeix@suse.com InfoProvider| |peter.krummrich@gmx.de --- Comment #1 from Johannes Meixner 2013-10-08 10:45:19 CEST --- Your attachment#561311 is a JPEG file. I assume it is what xsane stored when you scan using xsane. To find out if the root cause it is in xsane (or in whatever library that is called by xsane to convert the original data from the scanner into JPEG) or in the scanner driver (in the so called "backend" of SANE, see http://en.opensuse.org/SDB:Configuring_Scanners) use the plain "scanimage" command and scan into a PNM file, see http://en.opensuse.org/SDB:Configuring_Scanners#Frontend and attach that PNM file to this bug. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=843885 https://bugzilla.novell.com/show_bug.cgi?id=843885#c2 --- Comment #2 from Peter Krummrich 2013-10-16 18:34:17 UTC --- Created an attachment (id=563751) --> (http://bugzilla.novell.com/attachment.cgi?id=563751) Output of scanimage -d ... on 64 bit system -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=843885 https://bugzilla.novell.com/show_bug.cgi?id=843885#c4 Peter Krummrich changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW CC| |peter.krummrich@gmx.de InfoProvider|peter.krummrich@gmx.de | --- Comment #4 from Peter Krummrich 2013-10-16 18:43:24 UTC --- Dear Mr. Meixner, thank you very much for your message and the information. I am sorry for the long delay of my reply. I was on a business trip without access to the scanner. I have attached two files. The first one (testimage.pnm) is an output from the scanimage command. It looks decent with some vertical stripes, but they result probably from different responsivities of the scanner sensors. The second file (Testscan.jpeg) contains an output from xsane. The image contains colored vertical stripes which don't seem to result from varying responsivities of scanner sensors. I hope this information helps to localize the root cause. Best Regards, Peter Krummrich -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=843885 https://bugzilla.novell.com/show_bug.cgi?id=843885#c6 Peter Krummrich changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|peter.krummrich@gmx.de | --- Comment #6 from Peter Krummrich 2013-10-20 19:03:12 UTC --- Dear Mr. Meixner, thank you very much for your comments and the proposals. The weekend gave me the chance to find some time for testing. Here is what I experienced. I did several scans. The first series was, as you recommended, no preview, start with a scan right away. I chose gray scale this time to save time and file size for the PNM format. The resolution was 300 DPI. One thing I can say for sure is that the problem has nothing to do with the JPEG file format. The problem also occurs with PNM. I did three scans in a row using xsane. The first two look fine, the third one and the following ones have stripes. I also tried it with preview. The preview looks fine, also the first scan. Now the second scan, which is actually the third one after starting xsane, comes with stripes. Restarting the program enables two scans without problems, the third one comes with stripes. The stripes in the third scan after starting xsane are reproducible - either with preview or without. I also tried scanimage with 300 DPI resolution. The command line was: scanimage --mode Gray --resolution 300 --lamp-off-at-exit=no -d plustek:libusb:002:004 -x 215 -y 297 >./testimage_7th_scan.pnm I got no stripes with seven scans in a row. Starting xsane afterwards again resulted in stripes for the third scan and the following ones. So 3 seems to be a critical number for xsane. In the attachment, I have added two files. The first one is a second scan from xsane without stripes, the second file is a third scan with stripes. My impression after this testing is that there is a problem with xsane and not with the backend. Best Regards, Peter Krummrich -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=843885 https://bugzilla.novell.com/show_bug.cgi?id=843885#c8 --- Comment #8 from Peter Krummrich 2013-10-20 19:08:58 UTC --- Created an attachment (id=564154) --> (http://bugzilla.novell.com/attachment.cgi?id=564154) Gray test scan, third scan after staring xsane -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=843885 https://bugzilla.novell.com/show_bug.cgi?id=843885#c10 Ludwig Nussel changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|lnussel@suse.com | --- Comment #10 from Ludwig Nussel 2013-10-28 10:59:44 CET --- I have no idea unfortunately. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=843885 https://bugzilla.novell.com/show_bug.cgi?id=843885#c11 Ludwig Nussel changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |WONTFIX --- Comment #11 from Ludwig Nussel 2013-10-29 10:53:30 CET --- I cannot fix this -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.