Te copio como lo tengo a ver si ves algo raro.
# URL presented to clients (e.g.
http://example.com:80).
#presentation_url =/
# Name that the DLNA server presents to clients.
# Defaults to "hostname: username".
friendly_name=LINUX
# Serial number the server reports to clients.
# Defaults to 00000000.
serial=681019810597110
# Model name the server reports to clients.
#model_name =Windows Media Connect compatible (MiniDLNA)
# Model number the server reports to clients.
# Defaults to the version number of minidlna.
#model_number =
# Automatic discovery of new files in the media_dir directory.
inotify=yes
# List of file names to look for when searching for album art.
# Names should be delimited with a forward slash ("/").
# This option can be specified more than once.
album_art_names=Cover.jpg/cover.jpg/AlbumArtSmall.jpg/albumartsmall.jpg
album_art_names=AlbumArt.jpg/albumart.jpg/Album.jpg/album.jpg
album_art_names=Folder.jpg/folder.jpg/Thumb.jpg/thumb.jpg
# Strictly adhere to DLNA standards.
# This allows server-side downscaling of very large JPEG images, which may
# decrease JPEG serving performance on (at least) Sony DLNA products.
#strict_dlna =no
# Support for streaming .jpg and .mp3 files to a TiVo supporting HMO.
#enable_tivo =no
# Notify interval, in seconds.
#notify_interval =895
# Path to the MiniSSDPd socket, for MiniSSDPd support.
#minissdpdsocket =/run/minissdpd.sock
# Path to the directory you want scanned for media files.
#
# This option can be specified more than once if you want multiple directories
# scanned.
#
# If you want to restrict a media_dir to a specific content type, you can
# prepend the directory name with a letter representing the type (A, P or V),
# followed by a comma, as so:
# + “A” for audio (eg. media_dir=A,/var/lib/minidlna/Music)
# + “V” for video (eg. media_dir=V,/var/lib/minidlna/Videos)
# + “P” for images (eg. media_dir=P,/var/lib/minidlna/Pictures)
# media_dir=/var/lib/minidlna
# media_dir=/media/david/PELIS
# media_dir=media/david/SERIES