SUMMARY Having set "Open archives as folders" in dolphin, I can't browse any 7z archive, while other archive formats work as expected. I get the same behaviour Using krusader. Ark works fine. STEPS TO REPRODUCE 1. Configure->Confgure Dolphin / Navigation / General: Open archives as folders 2. Navigate into any 7z compressed archive. OBSERVED RESULT No directory listing appear. Either the message: kf.kio.core: "Could not open the file, probably due to an unsupported file format.\nsevenz:<path to archive>" appears at the window's top, or the "Loading folder..." message is displayed in the status bar until I go back out. EXPECTED RESULT The 7z archive contents should be displayed as a folder in dolphin. SOFTWARE/OS VERSIONS Windows: N.A. macOS: N.A. Linux/KDE Plasma: Artix Linux (rolling) up to date. (available in About System) KDE Plasma Version: 5.25.0 KDE Frameworks Version: 5.95.0 Qt Version: 5.15.4 ADDITIONAL INFORMATION Used to work in previous plasma/framework/gear versions, but unfortunately I can't tell the exact version that broke this feature. In current debian/sid (5.24.5 / 5.94.0 / 21.12.3) it still works. I don't know if it's relevant, but the package p7zip is installed (1:17.04-3).
Well, it seems things are more complicated. I tried to run neon-user-20220623-0949.iso live image inside a virtual machine and the "unsupported file format" does not come out, but navigating a big 7z archive (some GB) now is painfully slow (it seems it wants to read the whole archive every time i change folder) and eventually "the process sevenz died" comes out when tying to load a small text file into the editor. Again, this didn't happen in older versions.
I have following packages installed and can open 7zip as folder. dpkg --get-selections | grep -v deinstall | grep zip bzip2 install bzip2-doc install gzip install libminizip1:amd64 install libzip4:amd64 install p7zip install p7zip-full install p7zip-rar install python3-zipp install unzip install zip install Operating System: Kubuntu 22.04 KDE Plasma Version: 5.24.6 KDE Frameworks Version: 5.95.0 Qt Version: 5.15.3 Kernel Version: 5.15.0-46-generic (64-bit) Graphics Platform: X11
Yeah, now things have cleared out a bit. KDE Plasma Version: 5.25.4 KDE Frameworks Version: 5.97.0 Qt Version: 5.15.5 Now browsing 7z archives with the sevenz:/ protocol handler in dolphin or krusader (almost) works. The only annoyances are 1. Browsing a GB sized archive is painfully slow. 2. Loading a small text file into an editor from such an archive sometimes fails, but retrying usually works. But... doing the same with the krarc:/ protocol handler (whic is installed by krusader afaik) hangs both dolphin and krusader. Browsing a 7z archive with krarc:/ was instant, like Ark, but now is broken.
*** This bug has been marked as a duplicate of bug 425846 ***