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My HP printer suddenly didn't work anymore, and /var/log/syslog reported
for udev-configure-printer:
"failed to connect to CUPS server; giving up"
I decided to reinstall cups and hplip and got the following error
messages:
"AppArmor parser error for /etc/apparmor.d/usr.sbin.cupsd in
/etc/apparmor.d/usr.sbin.cupsd at line 18: Invalid capability
block_suspend."
... and:
"start: Job failed to start
invoke-rc.d: initscript cups, action "start" failed."
... resulting in errors related to dpkg (dependencies problems).
After commenting out the line
capability block_suspend,
in /etc/apparmor.d/usr.sbin.cupsd, all is well: Reinstalling cups and
hplip was successful and my printer works again.
** Affects: cups (Ubuntu)
Importance: Undecided
Status: New
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AppArmor parser error for /etc/apparmor.d/usr.sbin.cupsd
https://bugs.launchpad.net/bugs/1052098
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