[Skanlite] [Bug 431782] Incorrect resolution detected for HP Scanjet 3400C
https://bugs.kde.org/show_bug.cgi?id=431782 --- Comment #14 from Kåre Särs --- Super!! Thanks :) -- You are receiving this mail because: You are watching all bug changes.
[Skanlite] [Bug 431782] Incorrect resolution detected for HP Scanjet 3400C
https://bugs.kde.org/show_bug.cgi?id=431782 --- Comment #13 from Ilario Gottardello --- Well, I for one was bothered by this issue for years before reporting it :) I have reported the issue to sane project: https://gitlab.com/sane-project/backends/-/issues/438 -- You are receiving this mail because: You are watching all bug changes.
[Skanlite] [Bug 431782] Incorrect resolution detected for HP Scanjet 3400C
https://bugs.kde.org/show_bug.cgi?id=431782
Kåre Särs changed:
What|Removed |Added
Ever confirmed|0 |1
Status|REPORTED|CONFIRMED
--- Comment #12 from Kåre Särs ---
Thanks for the info!
I checked the source of the niash backend and there the size is hardcoded to
220x296 :{
https://gitlab.com/sane-project/backends/-/blob/master/backend/niash.c
on lines 198 and 199
I'm really astonished that this problem has not been (reported and) fixed
before... the backend is from 2001... all the supported scanners have a
~216x297mm area...
But I will have to check the libksane 2mm wiggle room implementation and
check..
Are you able to select A4 or is it totally missing?
It would be nice if you could also report this to
https://gitlab.com/sane-project/backends/-/issues to get the root problem
fixed.
Regards,
Kåre
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[Skanlite] [Bug 431782] Incorrect resolution detected for HP Scanjet 3400C
https://bugs.kde.org/show_bug.cgi?id=431782 Ilario Gottardello changed: What|Removed |Added Status|NEEDSINFO |REPORTED Resolution|WAITINGFORINFO |--- Ever confirmed|1 |0 --- Comment #11 from Ilario Gottardello --- With the original program by HP these are the maximum dimensions reported: 215.9 x 297.2 mm 8.50 x 11.70 in 1700 x 2340 pixels -- You are receiving this mail because: You are watching all bug changes.
[Skanlite] [Bug 431782] Incorrect resolution detected for HP Scanjet 3400C
https://bugs.kde.org/show_bug.cgi?id=431782 --- Comment #10 from Ilario Gottardello --- Created attachment 135583 --> https://bugs.kde.org/attachment.cgi?id=135583&action=edit Size in pixels -- You are receiving this mail because: You are watching all bug changes.
[Skanlite] [Bug 431782] Incorrect resolution detected for HP Scanjet 3400C
https://bugs.kde.org/show_bug.cgi?id=431782 --- Comment #9 from Ilario Gottardello --- Created attachment 135582 --> https://bugs.kde.org/attachment.cgi?id=135582&action=edit Size in inches -- You are receiving this mail because: You are watching all bug changes.
[Skanlite] [Bug 431782] Incorrect resolution detected for HP Scanjet 3400C
https://bugs.kde.org/show_bug.cgi?id=431782 --- Comment #8 from Ilario Gottardello --- Created attachment 135581 --> https://bugs.kde.org/attachment.cgi?id=135581&action=edit Size in cm -- You are receiving this mail because: You are watching all bug changes.
[Skanlite] [Bug 431782] Incorrect resolution detected for HP Scanjet 3400C
https://bugs.kde.org/show_bug.cgi?id=431782 --- Comment #7 from Bug Janitor Service --- Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone! -- You are receiving this mail because: You are watching all bug changes.
[Skanlite] [Bug 431782] Incorrect resolution detected for HP Scanjet 3400C
https://bugs.kde.org/show_bug.cgi?id=431782 Kåre Särs changed: What|Removed |Added Status|CONFIRMED |NEEDSINFO Resolution|--- |WAITINGFORINFO --- Comment #6 from Kåre Särs --- The problem is quite probably a conversion rounding error as you wrote. It would be nice to get the size on windows just as a reference. I still need to check why the fix that was done, does not seem to be working for you... Is it possible to select A4 or is it not in the list? If A4 is in the list but not selected even if you had that set previously I think it is the "saved settings" that needs tweaking. That said it would be nice if the back-end would return the correct size :) -- You are receiving this mail because: You are watching all bug changes.
[Skanlite] [Bug 431782] Incorrect resolution detected for HP Scanjet 3400C
https://bugs.kde.org/show_bug.cgi?id=431782 --- Comment #5 from Ilario Gottardello --- Ok, so should I report a bug against the backend? May it be sensible to test the scanner on windows to see what dimensions it reports? -- You are receiving this mail because: You are watching all bug changes.
[Skanlite] [Bug 431782] Incorrect resolution detected for HP Scanjet 3400C
https://bugs.kde.org/show_bug.cgi?id=431782 Kåre Särs changed: What|Removed |Added Status|NEEDSINFO |CONFIRMED Ever confirmed|0 |1 Resolution|WAITINGFORINFO |--- --- Comment #4 from Kåre Särs --- Thanks, As you can see the backend returns the 296 in stead of the 297 that it should, but it seems the wiggle-room calculation that was added does not work good enough... The backend does return a wrong value, so it should be fixed there too... -- You are receiving this mail because: You are watching all bug changes.
[Skanlite] [Bug 431782] Incorrect resolution detected for HP Scanjet 3400C
https://bugs.kde.org/show_bug.cgi?id=431782 --- Comment #3 from Ilario Gottardello --- $ dpkg -l | grep sane ii libkf5sane-data 20.12.1-0xneon+20.04+focal+build11all scanner library (data files) ii libkf5sane5 20.12.1-0xneon+20.04+focal+build11amd64scanner library (runtime) ii libsane:amd64 1.0.29-0ubuntu5.2 amd64API library for scanners ii libsane:i386 1.0.29-0ubuntu5.2 i386 API library for scanners ii libsane-common 1.0.29-0ubuntu5.2 all API library for scanners -- documentation and support files ii libsane-hpaio:amd64 3.20.3+dfsg0-2 amd64HP SANE backend for multi-function peripherals ii sane-utils 1.0.29-0ubuntu5.2 amd64API library for scanners -- utilities -- You are receiving this mail because: You are watching all bug changes.
[Skanlite] [Bug 431782] Incorrect resolution detected for HP Scanjet 3400C
https://bugs.kde.org/show_bug.cgi?id=431782 --- Comment #2 from Ilario Gottardello --- $ scanimage -L device `niash:libusb:002:010' is a Hewlett-Packard ScanJet 3400C flatbed scanner $ scanimage -d niash:libusb:002:010 --help Usage: scanimage [OPTION]... Start image acquisition on a scanner device and write image data to standard output. Parameters are separated by a blank from single-character options (e.g. -d epson) and by a "=" from multi-character options (e.g. --device-name=epson). -d, --device-name=DEVICE use a given scanner device (e.g. hp:/dev/scanner) --format=pnm|tiff|png|jpeg file format of output file -i, --icc-profile=PROFILE include this ICC profile into TIFF file -L, --list-devices show available scanner devices -f, --formatted-device-list=FORMAT similar to -L, but the FORMAT of the output can be specified: %d (device name), %v (vendor), %m (model), %t (type), %i (index number), and %n (newline) -b, --batch[=FORMAT] working in batch mode, FORMAT is `out%d.pnm' `out%d.tif' `out%d.png' or `out%d.jpg' by default depending on --format This option is incompatible with --output-file. --batch-start=#page number to start naming files with --batch-count=#how many pages to scan in batch mode --batch-increment=#increase page number in filename by # --batch-double increment page number by two, same as --batch-increment=2 --batch-print print image filenames to stdout --batch-prompt ask for pressing a key before scanning a page --accept-md5-only only accept authorization requests using md5 -p, --progress print progress messages -o, --output-file=PATH save output to the given file instead of stdout. This option is incompatible with --batch. -n, --dont-scanonly set options, don't actually scan -T, --test test backend thoroughly -A, --all-options list all available backend options -h, --help display this help message and exit -v, --verbose give even more status messages -B, --buffer-size=#change input buffer size (in kB, default 32) -V, --version print version information Output format is not set, using pnm as a default. Options specific to device `niash:libusb:002:010': Geometry: -l 0..220mm (in steps of 1) [0] Top-left x position of scan area. -t 0..296mm (in steps of 1) [0] Top-left y position of scan area. -x 0..220mm (in steps of 1) [210] Width of scan-area. -y 0..296mm (in steps of 1) [290] Height of scan-area. --resolution 75|150|300|600dpi [150] Sets the resolution of the scanned image. Image: --gamma-table 0..255,... (in steps of 1) Gamma-correction table. In color mode this option equally affects the red, green, and blue channels simultaneously (i.e., it is an intensity gamma table). Scan Mode: --mode Color|Gray|Lineart [Color] Selects the scan mode (e.g., lineart, monochrome, or color). Enhancement: --threshold 0..100% (in steps of 1) [inactive] Select minimum-brightness to get a white point Type ``scanimage --help -d DEVICE'' to get list of all options for DEVICE. List of available devices: niash:libusb:002:010 -- You are receiving this mail because: You are watching all bug changes.
[Skanlite] [Bug 431782] Incorrect resolution detected for HP Scanjet 3400C
https://bugs.kde.org/show_bug.cgi?id=431782 Kåre Särs changed: What|Removed |Added Status|REPORTED|NEEDSINFO Resolution|--- |WAITINGFORINFO --- Comment #1 from Kåre Särs --- Thanks for the report. Hmm.. strange... exactly this should be fixed in libksane 20.12... libksane should have a 2mm wiggle room margin for the page sizes... can you run scanimage -L to get the device id and then scanimage -d --help then post the output here. -- You are receiving this mail because: You are watching all bug changes.
