Public bug reported:
Nemo is unable to generate ebooks thumbnails over SMB share because of
evince-thumbnailer apparmor profile(note that Nautilus is able to do it
anyway), i removed apparmor to see and it fixed that issue.
Nemo output when generating thumbs:
-----------------------------------------------------
(nemo:31811): CinnamonDesktop-WARNING **: 01:08:30.200: Error creating
thumbnail for
smb://akem-hp.local/comics_bds_mangas/Scrooge/Uncle%20Scrooge%20(001-100)%20GetComics.INFO/029%20Uncle%20Scrooge.cbr:
Unrecognized image file format
Error loading remote document: An AppArmor policy prevents this sender from
sending this message to this recipient; type="method_call", sender=":1.243"
(uid=1000 pid=1488 comm="evince-thumbnailer -s 128 smb://akem-hp.local/comi"
label="/usr/bin/evince-thumbnailer (enforce)")
interface="org.gtk.vfs.MountTracker" member="LookupMount" error name="(unset)"
requested_reply="0" destination=":1.10" (uid=1000 pid=1725
comm="/usr/lib/gvfs/gvfsd " label="unconfined")
(nemo:31811): CinnamonDesktop-WARNING **: 01:08:30.365: Unable to create loader
for mime type application/x-cbr: Unrecognized image file format
-----------------------------------------------------
Note that it does the same with pdf or some other ebooks format.
The problem happens in loopback too, just share a folder with ebooks
using SMB, flush the thumbnails and open Nemo to that folder via
Network(connect to the SMB).
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: evince 3.28.4-0ubuntu1.2
ProcVersionSignature: Ubuntu 4.18.0-22.23~18.04.1-generic 4.18.20
Uname: Linux 4.18.0-22-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
Date: Thu Jun 27 02:11:28 2019
InstallationDate: Installed on 2019-05-31 (26 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
SourcePackage: evince
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: evince (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
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https://bugs.launchpad.net/bugs/1834386
Title:
Ebooks thumbnails fail in Nemo over SMB
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