Filename in non-english are not saved correctly

Question

hi
I recently (last week) installed archlinux.
I come from manjaro so I am to some extent familiar with archlinux.
now I am trying to solve some issues that have poped up in arch that there were not in manjaro( mostly because manjaro was pre-configured).
when I use jdownloader to save youtube videos the files names are displayed correctly in jdownloader but not in konsole or dolphin file manager. (they are shown as "????" characters).
this happens for Persian and Russian characters.
I thought this was jdownloader issue but this doesn't happen on my pc that has a manjaro installed on it.
and another thing that makes it weird is that if i create files in dolphin with say Persian language they are shown and treated correctly. but the ones that are created by jdownloader have this issue.
and another related symptome is that some files that I download from subtitle websites that are in zip format and have some rare European characters in them (like the French and German ones) I cant open them or extract them in dolphin file manager.
I had a similar issue like this in manajro but in manajro I used file-roller to open the files and that app would work with this files correctly.
but in archlinux even file-roller has this issue.
can somebody help me with this?

Answer 1

Lone_Wolf wrote:
rezad,
it was a long time ago i had that problem and locale handling is like a black box to me.
It's easy to reverse if it doesn't help though, why don't you try it ?
I have tried it.
adding other encoding before the famous en-US,UTF-8 one gives warning for default lang and falling back.
I see these error when running apps from command line.
adding other encodings after that encoding doesn't show this warning but i have a suspicion that it mean that other encoding are suppressed,
i have to try it with a file with a wired but known encoding and then adding that encoding to config and testing again.
my problem is how do i find the filename encoding?(not find content encoding)
this is the file in question. can somebody tell me what is the filename encoding?
https://www.sendspace.com/file/fwmxpc
EDIT:  my findings on this matter.
even adding all the langs to /etc/locale.gen and then using locale-gen command doesnt fix this. cause this are different issues.
this problem as a whole doesn't have a solution, cause linux unlike windows doesn't have a default inbuilt filename encoding and it all depends on your environment.
linux just treat the filename in the encoding you tell it. so it cant detect anything cause there is nothing to detect.
from its perspective filename are just binary data ready to be interpreted as wished by the user.
widows on the other hand uses UTF-16.
plz if anybody have another contradicting point ,then reply but plz dont say I have to use correct encoding. the only way to fix it is using convmv util and that requires finding the correct original encoding.
thanks for all the replys.
Last edited by rezad (2015-04-20 14:45:14)