The offending code is in /etc/X11/Xsession
Some updates ago, code was changed to increment .xsession-errors instead of overwrite it.
/etc/X11/Xsession line 94: exec >>"$ERRFILE" 2>&1
Change it back to: exec >"$ERRFILE" 2>&1
I think reverting to the previous overwrite behaviour would be a good enough choice.
This bug affect any Ubuntu/Kubuntu/Xubuntu Offending package: xinit
The offending code is in /etc/X11/Xsession
Some updates ago, code was changed to increment .xsession-errors instead of overwrite it.
/etc/X11/Xsession line 94:
exec >>"$ERRFILE" 2>&1
Change it back to:
exec >"$ERRFILE" 2>&1
I think reverting to the previous overwrite behaviour would be a good enough choice.
This bug affect any Ubuntu/ Kubuntu/ Xubuntu
Offending package:
xinit