Reopening, as I have finally managed to reproduce this bug. It occurs
for me when the title of a full screen window (the window for which
Caffeine inhibits idleness) contains a non-ASCII character. This causes
an error in the embedded Perl script in xdg-screensaver, in the
subroutine screensaver_gnome_screensaver, where it tries to get the
window name (the call to GetProperty). This in turn appears to be a bug
in the Perl module X11::Protocol.
** Changed in: caffeine
Status: Won't Fix => Confirmed
** Bug watch added: gitlab.freedesktop.org/xdg/xdg-utils/-/issues #137
https://gitlab.freedesktop.org/xdg/xdg-utils/-/issues/137
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https://bugs.launchpad.net/bugs/1700419
Title:
caffeine 2.9.7 isn't working on Ubuntu 20.04
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