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 <[email protected]>
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
2008/10/1, Mariusz Kozlowski <[email protected]>:
> 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 <[email protected]>
> 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.
Risto
At Wed, 1 Oct 2008 23:47:34 +0300,
[email protected] wrote:
>
> 2008/10/1, Mariusz Kozlowski <[email protected]>:
> > 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 <[email protected]>
> > 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
thanks,
Takashi
Hello,
> At Wed, 1 Oct 2008 23:47:34 +0300,
> [email protected] wrote:
> >
> > 2008/10/1, Mariusz Kozlowski <[email protected]>:
> > > 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 <[email protected]>
> > > 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,
>
> Takashi
BTW git-cherry-pick is a cool thing :)
Thanks,
Mariusz
At Thu, 2 Oct 2008 12:39:20 +0200,
Mariusz Kozlowski wrote:
>
> Hello,
>
> > At Wed, 1 Oct 2008 23:47:34 +0300,
> > [email protected] wrote:
> > >
> > > 2008/10/1, Mariusz Kozlowski <[email protected]>:
> > > > 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 <[email protected]>
> > > > 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