Thunar stops updating/refreshing newly created/deleted files

[^rooker]

When I created or deleted a file in the shell/commandline, then Thunar would not update it's view - unless I pressed F5 to refresh the folder.

This is not its default behavior.

I've found the cause - and a solution:
Nextcloud gave a warning that inotify watches were exhausted, pointing to their FAQ:

https://docs.nextcloud.com/desktop/3.4/faq.html#there-was-a-warning-about-changes-in-synchronized-folders-not-being-tracked-reliably

To solve both's (Nextcloud and Thunar) behavior back to normal, increase the value of `fs.inotify.max_user_watches`in `/etc/sysctl.conf`, as described in the FAQ article.

The value Nextcloud suggests is 524288 - so I assume this amount to be safe.

Adding the following setting to `/etc/sysctl.conf`, fixed it for me:

`fs.inotify.max_user_watches = 524288`

Hope it helps if anyone else runs into this :)

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: thunar 1.8.14-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-126.142-generic 5.4.203
Uname: Linux 5.4.0-126-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: XFCE
Date: Tue Jan 23 20:38:34 2024
InstallationDate: Installed on 2021-01-16 (1101 days ago)
InstallationMedia: Xubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
SourcePackage: thunar
UpgradeStatus: No upgrade log present (probably fresh install)