[Desktop-packages] [Bug 2024887] Re: Bad image quality when saving JPEG or PDF scans

2023-07-02 Thread Geert Uytterhoeven
Further investigation of my backups shows that I never had a "jpeg-quality" setting in GNOME settings on this machine before ("HOME=/path/to/restored/homedir dconf dump /org/gnome/simple-scan/"). I do have jpeg-quality=75 on the old machine that was connected to the scanner until 5 years ago...

[Desktop-packages] [Bug 2024887] Re: Bad image quality when saving JPEG or PDF scans

2023-07-02 Thread Geert Uytterhoeven
TL;DR: Apparently the compression setting was set to the minimum value. Changing that fixed the problem. --- Investigation log: 1. Pointing LD_LIBRARY_PATH to a restored backup of /usr/lib/x86_64-linux-gnu does not help. 2. "strace -f" shows no external programs are called to handle

[Desktop-packages] [Bug 2024887] Re: Bad image quality when saving JPEG or PDF scans

2023-07-01 Thread Geert Uytterhoeven
I have just discovered a few good PDF image documents scanned with simple-scan 42.00 on January 22. So the regression was not introduced by the upgrade from 20.04LTS to 22.04LTS, but after that. I will have a deeper look at the changes in /var/log/dpkg.log.* later... -- You received this bug

[Desktop-packages] [Bug 2024887] Re: Bad image quality when saving JPEG or PDF scans

2023-07-01 Thread Geert Uytterhoeven
"journalctl -f" does show some messages, but there is not really any difference depending on the selected file format. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to simple-scan in Ubuntu. https://bugs.launchpad.net/bugs/2024887 Title:

[Desktop-packages] [Bug 2024887] Re: Bad image quality when saving JPEG or PDF scans

2023-07-01 Thread Geert Uytterhoeven
** Attachment added: "Bad JPEG document" https://bugs.launchpad.net/ubuntu/+source/simple-scan/+bug/2024887/+attachment/5683264/+files/Scanned%20Document.jpg -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to simple-scan in Ubuntu.

[Desktop-packages] [Bug 2024887] Re: Bad image quality when saving JPEG or PDF scans

2023-07-01 Thread Geert Uytterhoeven
** Attachment added: "Good PNG document" https://bugs.launchpad.net/ubuntu/+source/simple-scan/+bug/2024887/+attachment/5683265/+files/Scanned%20Document.png -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to simple-scan in Ubuntu.

[Desktop-packages] [Bug 2024887] Re: Bad image quality when saving JPEG or PDF scans

2023-07-01 Thread Geert Uytterhoeven
** Attachment added: "Bad PDF document" https://bugs.launchpad.net/ubuntu/+source/simple-scan/+bug/2024887/+attachment/5683263/+files/Scanned%20Document.pdf -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to simple-scan in Ubuntu.

[Desktop-packages] [Bug 2024887] Re: Bad image quality when saving JPEG or PDF scans

2023-06-26 Thread Sebastien Bacher
Thank you for your bug report. Could you add a screenshot showing the issue? Is there any message printed in the $ journalctl -f log when having the issue? As a workaround you can use png and then use the image viewer to save back as jpg or print to pdf -- You received this bug notification

[Desktop-packages] [Bug 2024887] Re: Bad image quality when saving JPEG or PDF scans

2023-06-25 Thread Geert Uytterhoeven
I debuild 44.0-0ubuntu1 from lunar, and that has the same issue. > Version 3.36.3-0ubuntu0.20.04.0 did not have this problem. That was when still running 20.04LTS. When installing 3.36.3-0ubuntu0.20.04.0 (and its libwebp6_0.6.1-2ubuntu0.20.04.2_amd64.deb dependency) from focal on 22.04.2 LTS,