At Thu, 2 Oct 2008 12:39:20 +0200, Mariusz Kozlowski wrote: > > Hello, > > > At Wed, 1 Oct 2008 23:47:34 +0300, > > risto.suominen@xxxxxxxxx wrote: > > > > > > 2008/10/1, Mariusz Kozlowski <m.kozlowski@xxxxxxxxxx>: > > > > Hello, > > > > > > > > I found that on my old iMac G3 aumix behaves weird on newer (up to > > > > 2.6.27-rc8) kernels. The sound is only present _when_ muted and is quiet > > > > I'd say 10% of 'normal' max level. If you turn the volume up - the box is > > > > silent. > > > > If you unmute - the box is silent. 100% reproducible. > > > > > > > > Bisection result is a bit surprising as it seems it was introduced some time > > > > ago, > > > > in 2.6.25 ~ 2.6.26-rc1 window: > > > > > > > > commit a8c2a6bf464d983c642c8b8b001a57aabbf76673 > > > > Author: Risto Suominen <Risto.Suominen@xxxxxxxxx> > > > > Date: Thu Apr 17 17:55:30 2008 +0200 > > > > > > > > [ALSA] snd-powermac: AWACS and Screamer mixers for PM7500, Beige, and > > > > iMac SL > > > > > > > > Add mixer controls and correct headphone detection bits for PowerMacs > > > > 7300/7500 (AWACS) and G3 Beige (Screamer), and iMac G3 Slot-loading > > > > (Screamer). > > > > > > > > > > > > Mariusz > > > > > > > > > > > > > > > > processor : 0 > > > > cpu : 740/750 > > > > temperature : 52 C (uncalibrated) > > > > clock : 400.000000MHz > > > > revision : 2.2 (pvr 0008 0202) > > > > bogomips : 49.79 > > > > timebase : 24967326 > > > > platform : PowerMac > > > > model : PowerMac2,1 > > > > machine : PowerMac2,1 > > > > motherboard : PowerMac2,1 MacRISC2 MacRISC Power Macintosh > > > > detected as : 66 (iMac FireWire) > > > > pmac flags : 00000014 > > > > L2 cache : 512K unified > > > > pmac-generation : NewWorld > > > > > > > > 0000:00:0b.0 Host bridge: Apple Computer Inc. UniNorth AGP > > > > 0000:00:10.0 Display controller: ATI Technologies Inc Rage 128 RL/VR AGP > > > > 0001:10:0b.0 Host bridge: Apple Computer Inc. UniNorth PCI > > > > 0001:10:12.0 FireWire (IEEE 1394): Texas Instruments TSB12LV23 IEEE-1394 > > > > Controller > > > > 0001:10:13.0 Ethernet controller: Digital Equipment Corporation DECchip > > > > 21142/43 (rev 41) > > > > 0001:10:17.0 Class ff00: Apple Computer Inc. KeyLargo Mac I/O (rev 02) > > > > 0001:10:18.0 USB Controller: Apple Computer Inc. KeyLargo USB > > > > 0001:10:19.0 USB Controller: Apple Computer Inc. KeyLargo USB > > > > 0002:20:0b.0 Host bridge: Apple Computer Inc. UniNorth Internal PCI > > > > > > > > > > > Mariusz, thank you for the report. This is my fault. Sorry. > > > > > > PowerMac2,1 seems to have the mute bit reversed compared to later > > > models, PowerMac2,2 and PowerMac4,1, which I was using for testing my > > > changes. > > > > > > This has been fixed in a later patch that should be included in kernel > > > 2.6.27, I believe. > > > > > > Takashi, when was this (or will be) included? I sent two patches on 2008-08-25. > > > > No, it wasn't because it's not clear whether the patches are > > regression fixes. > > > > Mariusz, try sound git tree. Risto's patches are already there. > > git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6.git > > > > If it works, then try to cherry-pick the following two commits onto > > the vanilla kernel: > > - 8352a6fe67a0f804302b93178f2e13b66004a693 > > ALSA: snd-powermac: mixers for PowerMac G4 AGP > > - e25ae4fd3ccba79cfd5628642754a145394225f6 > > ALSA: snd-powermac: HP detection for 1st iMac G3 SL > > sound-2.6 works ok. > linux-2.6 plus the two patches above solve the sound problem for me. > > Will they go into 2.6.27? Thanks for checking. I'll add them to the next pull request. Takashi -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
