Please advice a working (infrared receipter + remote control) USB
 

Thank you for you recommendation !

The ones I have seen are either bundled with digital TV cards and/or sold for use with Microsoft Media Center Edition (MCE). The MCE ones are supposed to work. See here:

http://www.mythtv.org/wiki/index.php/MCE_Remote

for general information. Just google

mce remote linux

for lots more useful-looking links.