(In reply to Jan Engelhardt from comment #3) > >Thus I extended exception handling and debug output in original source files > >-Oct 02 08:31:02 Sonne boinc[9863]: 02-Oct-2023 08:31:02 [---] Starting BOINC client version 7.25.0 for x86_64-suse-linux-gnu > >-Oct 02 08:31:02 Sonne boinc[9863]: 02-Oct-2023 08:31:02 [---] This a development version of BOINC and may not function properly > > > openSUSE:Factory and develprj have v7.24.1 This is one known software combination. > and you are running something completely different and custom. I would like to try further software combinations out. They can use also my adjustments then. > >-Oct 02 08:31:04 Sonne boinc[9863]: 02-Oct-2023 08:31:04 [---] xss_idle() XOpenDisplay(:0) call > > Oct 02 08:31:04 Sonne boinc[9863]: Authorization required, but no authorization protocol specified > > /usr/bin/boinc runs as a separate identity and as a daemon. It has no access > to /home and thus, in general, cannot read Xauthority files. Which software behaviour would you expect for the mentioned function call?