Hi Bill, I don't have a solution for you, but I do have a similar install in case it help. I'm also on Fedora 42, and I just tested, I can load into xtherion without issue both progressive and non-progressive JPGs. I am using therion-6.3.4-1.fc41.x86_64, which I believe comes from the jmbegley COPR repository.
The rpm I have installed requires libjpeg: rpm -qR therion | grep jpeg libjpeg.so.62()(64bit) libjpeg.so.62(LIBJPEG_6.2)(64bit) This library, libjpeg.so.62 is provided by libjpeg-turbo on my machine of which I have a slightly older version than you (3.0.2 vs 3.1.0): rpm -q --whatprovides libjpeg.so.62 libjpeg-turbo-3.0.2-3.fc41.i686 Here are other jpeg related packages I have installed, in case it helps: rpm -qa | grep jpeg libjpeg-turbo-3.0.2-3.fc41.x86_64 libjpeg-turbo-utils-3.0.2-3.fc41.x86_64 mjpegtools-libs-2.2.1-7.fc41.x86_64 openjpeg-2.5.3-6.fc41.x86_64 libjpeg-turbo-3.0.2-3.fc41.i686 libnvjpeg-12-8-12.3.5.92-1.x86_64 libnvjpeg-devel-12-8-12.3.5.92-1.x86_64 mingw64-libjpeg-turbo-3.0.2-3.fc41.noarch mingw32-libjpeg-turbo-3.0.2-3.fc41.noarch libnvjpeg-12-9-12.4.0.76-1.x86_64 libnvjpeg-devel-12-9-12.4.0.76-1.x86_64 jpeginfo-1.7.1-4.fc41.x86_64 Let me know if you want me to check anything else on my machine, I'm happy to help. Best of luck, Jonny On Tue, Aug 19, 2025 at 9:35 AM Bill Gee <[email protected]> wrote: > Hello everyone - This has been annoying me for a bit. Today I > discovered it is actually a big problem. > > For the past few months - I do not remember exactly how long - When I > add a background to a th2 file, I get a message about unable to load the > file. Screen shot attached. For new th2 files I have got around it by > using magick to convert the background images to PNG files. Easy and > quick, though annoying that it has to be done at all. Many of those > images come from a friend who scans the paper through a flatbed. He > uses Windows, and I just assumed something about his scanner software > was wonky. > > Today I went back to some stuff I last worked on several years ago. The > th2 file failed to open the background. The message said the file was > not available. I removed the background image and tried to reload it. > BAM! I get the same message about unable to load and asking if the file > is a progressive JPG! These background images did not come from my > friend's scanner. They came from a 25 year old camera. Some are PDF > files converted to JPG and others come from my flatbed scanner using xsane. > > These are files that worked several years ago. I have not changed them. > Trying some other stuff ... It appears that xTherion will no longer > load ANY jpg file. The question about progressive format is bogus. > > Does anyone have any idea what is going on? > > Yeah, I could go back and convert thousands of background images from > all the maps I have worked on. It would take days to find and update > all of them, and all the th2 files as well. But dang it - This should > Just Work! And what happens if PNG files stop working, too?? > > The system is Fedora 42. Therion is 6.3.4+dev, compiled back in April. > I have several jpeg libraries installed: > > root@main2:~# rpm -qa | grep jpeg > libjpeg-turbo-3.1.0-2.fc42.x86_64 > openjpeg-2.5.3-6.fc42.x86_64 > turbojpeg-3.1.0-2.fc42.x86_64 > openjpeg-tools-2.5.3-6.fc42.x86_64 > libjpeg-turbo-utils-3.1.0-2.fc42.x86_64 > libjpeg-turbo-devel-3.1.0-2.fc42.x86_64 > openjpeg-devel-2.5.3-6.fc42.x86_64 > jpeginfo-1.7.1-6.fc42.x86_64 > jpegoptim-1.5.5-6.fc42.x86_64 > mjpegtools-libs-2.2.1-8.fc42.x86_64 > > I ran jpeginfo -i across some of these files. According to jpeginfo, > they are NOT progressive format, as shown by the 'N' right after the bit > depth: > > 2021_04_01 SHN-017 CAVE SPRING CAVE PLAN VIEW X23-X26.JPG 1686 x 2952 > 24bit N JFIF,ICC Huffman,300dpi 1487615 > > > Thanks! > -- > =============== > Bill Gee > _______________________________________________ > Therion mailing list > [email protected] > https://mailman.speleo.sk/listinfo/therion >
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