https://bugzilla.novell.com/show_bug.cgi?id=741128 https://bugzilla.novell.com/show_bug.cgi?id=741128#c1 Takashi Iwai changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |m138@net.hr --- Comment #1 from Takashi Iwai 2012-01-13 06:50:50 UTC --- Any change if you turn on/off "Dynamic Power Control" mixer element? Or, it might be because of the power-saving feature. via power_save -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=741128 https://bugzilla.novell.com/show_bug.cgi?id=741128#c hal dawn changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |REOPENED InfoProvider|m138@net.hr | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=741128 https://bugzilla.novell.com/show_bug.cgi?id=741128#c4 hal dawn changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |REOPENED InfoProvider|m138@net.hr | --- Comment #4 from hal dawn 2012-01-16 21:14:03 UTC --- No difference. Stopped playback, switched D.P.C. on, started playback, mute/unmute and play/stop still had the noise. Unplugged everything and tried one jack at a time, it's the orange one (the one that splits into subwoofer/center) Chip seems to be fine, tested it on VIA_XP64_XP(v660e) and couldn't reproduce this noise. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=741128 https://bugzilla.novell.com/show_bug.cgi?id=741128#c6 Takashi Iwai changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |NEEDINFO InfoProvider| |m138@net.hr --- Comment #6 from Takashi Iwai 2012-01-24 14:22:44 UTC --- OK, this could be some side-effect of the analog low-current mode. Or, it's a logic failure in the current driver code. In anyway, I fixed some codes and added a new control to enable/disable the analog low-current mode. Try OBS alsa-driver-unstable-kmp in multimedia:audio:KMP repo. (It's *not* alsa-driver-kmp; there are two versions, one from the current snapshot and another from my devel snapshot; the unstable one is the latter.) If the noise occurs after installation/reboot, try to turn off "Analog Low-Current Mode" enum via "alsamixer -c0". (Also check with turn this "Enabled", too.) If this version solves the problem, I'll merge the fixes to the upstream. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=741128 https://bugzilla.novell.com/show_bug.cgi?id=741128#c8 --- Comment #8 from Takashi Iwai 2012-01-24 19:41:21 UTC --- Make sure that the driver has the changelog: * Tue Jan 24 2012 tiwai@suse.de - DRIVER-HEAD:56db21f79e75d04454a84f4bfa46a19581e77b8c - KERNEL-HEAD:3862703ea787b3ccfb0de11c831a0a4310bf04ca * ALSA: hda - Add "Analog Low-Current Mode" enum control for VIA codecs * ALSA: hda - Fix the logic to detect VIA analog low-current mode * ALSA: hda - Check power-state before changing in patch_via.c Also, the kernel must be the latest openSUSE-12.1 update kernel. Other kernels won't work. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=741128 https://bugzilla.novell.com/show_bug.cgi?id=741128#c10 Takashi Iwai changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |NEEDINFO InfoProvider| |m138@net.hr --- Comment #10 from Takashi Iwai 2012-01-25 08:44:54 UTC --- Thanks. The first pop-up noise at boot is hard to avoid, I guess, since it's the power-up sequence. Could you confirm that enabling "Analog Low-Current Mode" causes the pop-noise again at starting/stopping the stream, or any other noise problem? In the KMP, I fixed three things -- one is the logic to detect the analog-low current mode, one is the avoidance of unnecessary widget power-state changes, and the addition of analog low-current mode mixer enum. But, I'm not entirely sure about the first fix. It might be the other way around. Checking the analog low-current mixer might help for confirming it. (Unfortunately it's Chinese new year now, so VIA developers aren't responsive now and I can't get the information from them.) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=741128 https://bugzilla.novell.com/show_bug.cgi?id=741128#c12 --- Comment #12 from Takashi Iwai 2012-01-26 09:15:38 UTC --- The noise doesn't happen during mp3 playback because the analog low-current mode isn't changed during a stream is opened. So, obviously the noise comes from the ALC-mode switching. A remaining question is whether you hear any difference regarding the audio quality of playback before and after the KMP. Do you see any problem after the upgrade? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=741128 https://bugzilla.novell.com/show_bug.cgi?id=741128#c14 --- Comment #14 from Takashi Iwai 2012-02-01 09:58:19 UTC --- Thanks. I revisited the patch again after the suggestion from a VIA developer, and changed it to use the existing "Dynamic Power-Control" mixer element to turn on/off the ALC-mode, too. So, "Analog Low-Current Mode" mixer element is removed. Instead, set "Dynamic Power-Control" mixer to "Disabled". The alsa-driver-unstable KMP is updated and it's being built now. Once when this is confirmed to work, I'll merge the patches to the upstream tree. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=741128 https://bugzilla.novell.com/show_bug.cgi?id=741128#c16 --- Comment #16 from Takashi Iwai 2012-02-02 10:02:22 UTC --- The reason of the two pop noises is, as you guessed, that it's quickly turned on and off again. The driver sets the power-saving mode as default, then alsactl sets it off. As it's safer to set the power-saving mode off, I'll change the driver default value. Anyway, now all patches are merged to the upstream. I'll backport the patches to 12.1 kernel, too. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=741128 https://bugzilla.novell.com/show_bug.cgi?id=741128#c Swamp Workflow Management changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard| |obs:running:440:low -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=741128 Swamp Workflow Management changed: What |Removed |Added ---------------------------------------------------------------------------- Whiteboard|obs:running:440:low | -- You are receiving this mail because: You are on the CC list for the bug.