Comment 41 for bug 1748895

Hopefully not confusing things by adding this information... I use LibreOffice "E-mail as PDF" a lot. After about a fortnight of not having used it, when it worked fine, today I tried again.

Linux Mint 19.3 MATE; Thunderbird 68.10.0; LibreOffice 6.0.7.3.
LO Tools|Options|Internet|E-mail program field is blank (and has always been like that).

The Thunderbird compose window opened, but there was no attachment. No improvement after closing/restarting LO, Thunderbird or restarting Mint.

kern.log has:

Nov 27 14:51:03 bob-mint kernel: [ 1934.824706] audit: type=1400 audit(1606452663.111:205): apparmor="DENIED" operation="file_inherit" profile="libreoffice-senddoc" name=2F686F6D652F626F622F446F63756D656E74732F576F72642F424F422F4F626C6F6E672F54617820496E766F696365732F323032302F323032303131323730322D626967672D64616E2E6F6474 pid=7510 comm="senddoc" requested_mask="wr" denied_mask="wr" fsuid=1000 ouid=1000

Nov 27 14:51:03 bob-mint kernel: [ 1934.824714] audit: type=1400 audit(1606452663.111:206): apparmor="DENIED" operation="file_inherit" profile="libreoffice-senddoc" name="/home/bob/.config/libreoffice/4/user/uno_packages/cache/uno_packages.pmap" pid=7510 comm="senddoc" requested_mask="wr" denied_mask="wr" fsuid=1000 ouid=1000

Nov 27 14:51:03 bob-mint kernel: [ 1934.824719] audit: type=1400 audit(1606452663.111:207): apparmor="DENIED" operation="file_inherit" profile="libreoffice-senddoc" name="/usr/share/libreoffice/help/en-US/shared.jar" pid=7510 comm="senddoc" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

LO has no problem exporting the PDF and Thunderbird can manually attach it.

Caja 1.22.2 right-click Send to...E-mail works as expected.

If I run "libreoffice --writer" from the terminal there are no error messages there when doing the E-mail as PDF, but again no attachment appears.

The only thing I was brave enough to change, as the log mentioned it, was to change the permission of:
/home/bob/.config/libreoffice/4/user/uno_packages/cache/uno_packages.pmap
to 777. Made no difference.

Not sure what it all means!