On 15-06-08 19:33, Krzysztof Helt wrote:
I have tried to reproduce this on an opti930 card. I do not hear any difference. I tried at 100% and 75% (both PCM and Master) levels. I used the script which reloaded an old and new driver and played a wav file. I run it in a loop. The thing I noticed is that the old driver often produced noise (say more than 1 in 4 tries) instead of the sound. The new driver (cs4231) never. The old and new driver produced a click before playing the sound (50% probability).
I have checked the mixer code. It is not changed.
What do you do to get a different sound level? (card model, level settings).
I've restested (quite extensively by now...) and have not been able to reproduce. I do have quit a few 931 and 933 cards, all alike physically but likely not all the same post the onboard amp. What MAY have happened is that I mistakingly grabbed another one during testing while I was busy switching 930, 931 and 933 cards (and kernels).
Doubt it a bit but well, I'm just not reproducing now. I do believe it was a 931 on which I observed the level difference; let's just conclude this must have been an error on my part.
Rene.