12-16-2011 09:57 PM
I got my new U400 a week ago. Today I tried to connect the laptop to my TV using HDMI.
but the audio does not play on the TV, I looked in few forums, which suggests that I need to switch the audio to Hi Definition Audio Controller, from the Control Panel->Sound->Playback.
I only see one audio playback device listed there (Conexant Smart Audio HD) which is my laptop speakers. I right tclicked on empty are and selected both disabled and disconnected devices, but no HDMI audio controller is listed.
Any help on this issue is appreciated.
12-17-2011 02:47 AM - edited 12-17-2011 02:48 AM
according to the threads below, updating drivers fixes your issue. click support drivers&downloads banner on top, select u400 and re-install/update drivers.
12-17-2011 11:27 AM
12-17-2011 05:28 PM
02-12-2012 08:41 AM - edited 02-12-2012 08:42 AM
Did you found a decision? I have the same problem with U400.
If I plugin HDMI to my TV Samsung Plasma PS50C450 I have not the sound. I was traied many types of settings and when to connetion, but the sound is only sometimes, when I connect other HDMI port on TV them before. But after disconect it is again lost.