No sound on hp pavilion dv6244ea

hi, yesterday the sound of my notebok suddenly disappeared. I upgraded the OS to windows 7 ultimate one year ago (before i used windows vista) and everything went ok until yesterday. i tried to uninstall drivers for conexant high definition audio, replacing them with the vista ones (that i found in hp drivers'page download), because i read that windows 7 could run with the same audio drivers of vista, but no result.
when i try to update driver in the audio controller panel he says that the driver is already updated.
this is p/n: GB194EA#ABZ
and these are id hardware of the device:
HDAUDIO\FUNC_01&VEN_14F1&DEV_5045&SUBSYS_103C30BB&REV_1001
HDAUDIO\FUNC_01&VEN_14F1&DEV_5045&SUBSYS_103C30BB
i also tried to fix it with windows troubleshooting but no result, he says that he cannot identify the problem...
somebody can help me please?
thank you very much.
This question was solved.
View Solution.

Cteate and use a Linux (Ubuntu) Live distribution on DVD or CD to troubleshoot and verify that the issue is or is not hardware related.
Best regards,
erico
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