Subtitles not working

[Saikamo]

I selected "subtitles only diag" but nothing happend, i try to switch audio/text language same ♥♥♥♥ dont work. Anyone can help me?

[Calmly Frenetic]

The audio and text languages are set separately.

Text in the game (options/HUD/subtitles) normally uses the same language as the Steam interface (from Steam Settings):
Steam > Settings > Interface > Select the language you wish Steam to use

If you have Steam set to a language not supported by the game, the interface will appear in English, but the subtitles will not display unless:

The "closed caption language" (for subtitles) can be set differently to the game user interface, by setting the cc_lang parameter using the developer console. For example:
cc_lang italian
cc_lang english
cc_lang ""
The third example sets it back to "default", so that the subtitles will use the same language as the interface.

To determine the available languages for the cc_lang parameter, see the list of "closecaption_<language>" files in this folder:
...\Steam\steamapps\common\Half-Life 2\hl2\resource\

[Saikamo]

Already doing this.. steam interface lang "english", hl2 lang "english" but subtitles do not appear. i try too with console in game to change cc_lang to default or other, nothing work.

[Phantom]

What language do you use on your OS / operating system?

[Saikamo]

italian same for text in hl2. In hl2 mmod subtitles works perfect with audio eng and text italian.

[Calmly Frenetic]

Maybe try applying the subtitle setting again, or manually enter the settings using the console:
closecaption 1
cc_subtitles 1

You may also need to "Verify Integrity of Game Files":
https://support.steampowered.com/kb_article.php?ref=2037-QEUH-3335

Edit: And the HUD needs to be drawn on screen for the subtitles to be visible:
cl_drawhud 1