evince fails to overwrite files in /mnt/some_path

[Jora Sucharik]

Consider you want to annotate some PDF files on a file system mounted somewhere in /mnt. So you would open the file, do your annotations and save the file. Nope, you can't overwrite the file, you must save your PDF as a new one.

Evince (46.0-1build-1) let your know why:

The file could not be saved as "file://img/path...".
Error renaming temporary file: Permission denied

= Steps to reproduce on fresh Ubuntu 24.04: ================

* Create some fs, mount it, download some PDF. Can be skiped:

 $ truncate --size=100M myfs.img
 $ sudo mkfs.ext4 myfs.img
 $ sudo mkdir /mnt/some_dir
 $ sudo mount -o loop myfs.img
 $ cd /mnt/some_dir
 $ sudo chown $USER:$USER .
 $ wget https://upload.wikimedia.org/wikipedia/commons/d/d3/Test.pdf
 $ evince Test.pdf

* Try to save the file now, press ctrl+s, file chooser dialog opens and you get lot of warnings in terminal:

(evince:62394): GVFS-WARNING **: 10:20:45.777: The peer-to-peer connection failed: Error while getting peer-to-peer dbus connection: Could not connect: Permission denied. Falling back to the session bus. Your application is probably missing --filesystem=xdg-run/gvfsd privileges.

(evince:62394): GVFS-WARNING **: 10:20:45.778: The peer-to-peer connection failed: Error while getting peer-to-peer dbus connection: Could not connect: Permission denied. Falling back to the session bus. Your application is probably missing --filesystem=xdg-run/gvfsd privileges.

(evince:62394): GVFS-WARNING **: 10:20:45.851: The peer-to-peer connection failed: Could not connect: Permission denied. Falling back to the session bus. Your application is probably missing --filesystem=xdg-run/gvfsd privileges.

(evince:62394): GVFS-WARNING **: 10:20:45.921: The peer-to-peer connection failed: Could not connect: Permission denied. Falling back to the session bus. Your application is probably missing --filesystem=xdg-run/gvfsd privileges.

(evince:62394): GVFS-WARNING **: 10:20:46.117: The peer-to-peer connection failed: Error while getting peer-to-peer dbus connection: Could not connect: Permission denied. Falling back to the session bus. Your application is probably missing --filesystem=xdg-run/gvfsd privileges.

(evince:62394): GVFS-WARNING **: 10:20:46.117: The peer-to-peer connection failed: Error while getting peer-to-peer dbus connection: Could not connect: Permission denied. Falling back to the session bus. Your application is probably missing --filesystem=xdg-run/gvfsd privileges.

(evince:62394): GVFS-WARNING **: 10:20:46.118: The peer-to-peer connection failed: Error while getting peer-to-peer dbus connection: Could not connect: Permission denied. Falling back to the session bus. Your application is probably missing --filesystem=xdg-run/gvfsd privileges.

* then your choose the same Test.pdf you want to overwrite and you get the evince renaming-temporary-file error.