Alert: Don't upgrade to 3.19.0-18 Ubuntu kernel
#16
Noted :-)
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#17
Note 3.19.0-19 still shows the same behavior.

Patch was just posted yesterday, so hopefully 3.19.0-20 will have it fixed.
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#18
Haha, exactly what I thought :-)

The Braswell / Skylake support patch ... made HSW unusable.

https://launchpadlibrarian.net/207684944...fica.patch <- think about the & operator and then in combination with ==. One checks for "a flag" the other checks that no flags get supressed, e.g. "Don't assume braswell, there might other bits be set".
First decide what functions / features you expect from a system. Then decide for the hardware. Don't waste your money on crap.
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#19
The 3.19.0-20 vivid ubuntu kernel does fix this problem. It's still in vivid-proposed, expect it to be pushed out at some point. Hopefully soon.
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#20
As an aside, 14.04 gets the Vivid kernel with the 14.04.3 update in August. So there's plenty of time to worry for anyone who's waiting Smile

https://launchpad.net/ubuntu/+milestone/ubuntu-14.04.3

Quote:ubuntu-14.04.3
Third 14.04 point release, with 15.04 kernel
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#21
Looks like 3.19.0-20 was just pushed. I am installing now.

edit:

Confirmed. HDMI audio is working with 3.19.0-20 on my haswell celeron.
Livingroom: 65" Panasonic Plasma, Denon AVR-x3300w, Parasound A31, Fronts: RBH SX-6300 Towers, Center: RBH 441-se, Surrounds: RBH 41-se Sub: Dual SVS PC13-Ultra, Source: Custom Kodi Box
Desk: DAC: Schiit Modi Multibit,Headphones: Schiit Jotunheim -> Sennheiser HD650 & Beyerdynamic DT770 Pro, Speakers: Parasound 275v2-> RBH 41-se & SVS SB12-NSD
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#22
Yep, finally!
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Alert: Don't upgrade to 3.19.0-18 Ubuntu kernel0