Manuel, While launching from the command line with this: darktable --configdir ~/.config/darktable/test ...does work, when I go into preferences/processing, the last 3 lines which all pertain to opencl are greyed out. No option to enable them. They all say "not available".
Then, you suggested: 1) First, make a backup of the current config directory. 2) Copy the default darktablerc into your config: $ cp ~/.config/darktable/test/darktablerc ~/.config/darktable/ 3) Roll back the library.db and data.db from darktable's own snapshots, from most recent to oldest, e.g. $ cd ~/.config/darktable $ cp data.db-snp-20230716172500 data.db $ cp library.db-snp-20230716172500 library.db Did that, and darktable does now launch from the icon on the taskbar. 1 small step for a man... no giant leap for mankind just yet. OpenCL is still not available. Nor is the ability to multiselect images in the lighttable view. That's a new twist. I've never seen that not be possible. Romano, You suggested restoring via Timeshift. I just opened Timeshift, which I have set to capture 1x weekly and 5x daily backups. But bizarrely, it is set to EXCLUDE both /root and the user home directory (and all files therein, in both instances... so I'm not sure exactly what it is backing up!) David, That's actually sounding like a decent plan, to be honest. I might just go that route. ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org