The audio volume is much, much louder in 3.1-rc2 and -rc1 compared to kernel 3.0 and earlier for my card: 00:1b.0 Audio device: Intel Corporation 6 Series Chipset Family High Definition Audio Controller (rev 05) Subsystem: Dell Device 050e Flags: bus master, fast devsel, latency 0, IRQ 53 Memory at f1c00000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel Sound blasts out deafeningly unless I use alsamixer to adjust Master to zero (alsamixer says this is -64dB) and PCM to near to zero (eg a value like 27, ie -29dB). Note that with kernel 3.0, adjusting PCM in alsamixer does not affect the sound gain, but in 3.1 it (luckily!) does. It's quite difficult to adjust the sound to a non-painful level using gnome-volume control because the gain is biased so high.
Please give alsa-info.sh output (run with --no-upload option).
Created attachment 69262 [details] alsa-info.txt
Thanks. The bug is that Master volume isn't linked with PCM volume, thus Master is just a noop in the new driver. The Try the patch below.
Created attachment 69272 [details] Fix patch
Thanks, that fixes it.
OK, the patch is included in sound git tree now. It'll be merged likely in 3.1-rc3.
A patch referencing this bug report has been merged in Linux v3.1-rc3: commit 3fe45aeaf2033c9eaa5028ed5ba68b466008876f Author: Takashi Iwai <tiwai@suse.de> Date: Thu Aug 18 15:13:17 2011 +0200 ALSA: hda - Add "PCM" volume to vmaster slave list