I think I had the same problem a month or two ago using Therion on Windows. My solution was to load my jpeg into gimp and then export it with all of optional jpeg coding extensions turned off - so I had what you might call a "20 century jpeg". Therion on Windows was happy with this.
Mike McCombe > -----Original Message----- > From: Therion <[email protected]> On Behalf Of Bill Gee > Sent: 27 January 2026 19:07 > To: Therion Mail List <[email protected]> > Subject: Re: [Therion] xTherion will not open JPG backgrounds > > Update - Argh!! This is frustrating. It is sort of like the Linux version > of DLL > Hell. > > Apparently when I did the system updates a few weeks ago, the tkimg package > removed itself from tcl 8.6 and added itself to tcl 9.0. I searched through > some > old emails (lucky I still have them!) and found a thread from August 2025. > The > solution in that thread was to modify the xtherion program so it executed in > wish8.6 instead of wish 9. > > Repeating my tests from then - I found that package Img is no longer available > in tcl 8.6. I changed xtherion to call wish 9.0, and now it works. JPG > backgrounds will now load. > > The solution in August was to switch to TCL 8.6. The solution this > month is to switch to TCL 9.0. Sheesh ... > > bgee@main2:~$ tclsh8.6 > % package require Img > can't find package Img > % exit > bgee@main2:~$ tclsh9.0 > % package require Img > 2.1.0 > % exit > bgee@main2:~$ > > > =============== > Bill Gee > > On 1/27/26 12:41, Bill Gee wrote: > > Dang it ... I remember seeing this problem some months ago, probably > > in June, but now cannot remember how I fixed it. > > > > Therion 6.3.4+dev running on Fedora 43. > > > > In late December I worked on a cave map and had no problems with it. > > xTherion opened jpg files as backgrounds. Today I went back to that > > same map, and it will not load the background jpg files. It will open > > png backgrounds. The only error I can see is in the Background Images > > field. It shows the name of the jpg file and adds "(unknown)" at the end. > > > > I checked both tkimg and libjpeg. They are installed. What else is > > required for this to work? > > > > I started xtherion from a command shell. There were no additional > > error messages. Is there a log file somewhere that might give more clues? > > > > In early January I ran the usual update process for all packages. > > Both tkimg and libjpeg were updated. I don't see anything that was > > removed other than old kernels. > > > > Thanks! > > > > _______________________________________________ > Therion mailing list > [email protected] > https://mailman.speleo.sk/listinfo/therion _______________________________________________ Therion mailing list [email protected] https://mailman.speleo.sk/listinfo/therion
