On Fri, 2008-02-01 at 16:13 +0100, Takashi Iwai wrote:
Also, I had some very strange audio garbage with the tip on an HD
Audio platform
that normally works ok. I'm going to be tracking it down this
morning, once I
get to work (1 hour). I'm not sure if it is related to the AD1986a
or the SCH
(gcap patch).
AD1986A has a known problem when you assign the single stream to multiple DACs. But, we should have fixed this already in 1.0.16rc2.
Ok, I can confirm on my test system that the HDA-GCAP and HDA-SCH patches are ok. I tested them on 1.0.15 with an AD1986a and they work fine. Same system with HG20080130 is aweful. I'm trying to revert the patch_analog patches one at a time to see which one is the problem.
I do know that GCAP returns 2200 on this system, whereas a normal ICH returns 4401. The last bit may be significant (64bit vs 32bit
stream). I
need to reverify the SCH value, but this may be causing the issue.
This is
critical for a launch coming up.
Hm, this bit hasn't been tested. OK, we need a fix for that.
No need to worry about this bit I guess. It may only be relevant on a system that runs 64bit OSes, and I'd assume that bit doesn't exist for systems that can't.