I have a bad interference problem with audio, from the second I boot my laptop, before I select my OS. It is only a problem through my PA system, when connected directly or indirectly (via the tv through HDMI and audio out the TV to PA; or directly through the headphone port), but other devices (phone, iPod) work fine through the same cable to the PA system. Also, laptop to TV only via HDMI (not out to PA) works fine. It is most bizarre, it only occurs when the laptop is connected to the PA, and only since today. It was fine yesterday.
So, I want to disable my soundcard in Ubuntu to see if I can get clean sound out the HDMI to TV with TV connected to PA, since it's such a weird thing to occur and I'm out of ideas. It's a Sony Vaio and there is no option for disabling anything in the BIOS, I've searched it thoroughly. I figure that sound should still work through HDMI without a sound card or am I mistaken?
- Ubuntu 12.10 Gnome
- 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
- Sony Vaio EPCEH Laptop
The PA system is my stereo.
I have searched thoroughly for an idea of how to disable the soundcard, but all anything says is "do it through the bios", which there isn't an option for.
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