Check the distribution before treating Linux as one target
The publisher’s Linux instructions distinguish three levels of support: named Ubuntu LTS releases, broader Debian-family operation, and no guarantee for other distributions. They specifically list Ubuntu 20.x, 22.x and 24.x. A machine being called Linux is therefore insufficient evidence that it falls within the documented offline-player support scope. These instructions concern the downloadable ARTE VOD player, rather than every browser capable of opening the public ARTE site.
Collect the evidence the publisher actually requests
ARTE asks for operating-system information, the offline player version and the application’s diagnostic files. Its procedure identifies the version in the player’s settings and names main.log and renderer.log in the ArteVOD Offline Player logs folder. It also says to apply an available player update before contacting support. Record the distribution and release accurately instead of sending only the computer brand or a screenshot of a failed film.
Keep installation, entitlement and playback separate
The same publisher help explains its AppImage-based installation route, but an application opening successfully does not establish a film entitlement. ARTE’s protected-content guidance requires its own authorised streaming or offline player for the programme. When reporting a problem, say whether the player fails to launch, a library item is absent, or an entitled title fails during playback. Those observations lead to different investigations. This article records the publisher’s support boundaries and evidence requirements; it does not claim a runtime test on every Debian derivative or provide an alternative protected-file player.