Re: 2.6.12-rc3, G5 sound not quite there , some info
Benjamin Herrenschmidt a écrit :
> On Thu, 2005-04-28 at 16:26 -0700, jaspal wrote:
> > OK, I got 2.6.12-rc3 to try to get the sound working but no joy.
> > Anyway, some info...
> >
> > I have a powermac G5, dual 1.8 (first tower) and I compliled
> > 2.6.12-rc3
> > without SMU i.e # CONFIG_PMAC_SMU is not set. I'm also using 32 bit
> > ppc and not ppc64. I'm running gentoo.
>
> Hrm... I don't support ppc32 on any G5 anymore, you should really
> consider a 64 bits kernel. Note that there are some issues still with
> the coe in -rc3, there is a patch in -mm fixing them. That may
explain.
> most of the errors below are actually spurrious ... the real error
would
> be if the message appeared twice in fact :) That's something I need
to
> fix.
I think it is repeated twice with current -mm, see below.
>
> > modprobe snd-powermac gives in /var/log/messages:
> >
> > Apr 29 01:10:33 linux ALSA sound/ppc/tumbler.c:1037: cannot find
> > device audio-hw-reset
> > Apr 29 01:10:33 linux ALSA sound/ppc/tumbler.c:1037: cannot find
> > device amp-mute
> > Apr 29 01:10:33 linux ALSA sound/ppc/tumbler.c:1037: cannot find
> > device headphone-mute
> > Apr 29 01:10:33 linux ALSA sound/ppc/tumbler.c:1037: cannot find
> > device line-output-mute
> > Apr 29 01:10:33 linux ALSA sound/ppc/tumbler.c:1037: cannot find
> > device headphone-detect
> > Apr 29 01:10:33 linux ALSA sound/ppc/tumbler.c:1037: cannot find
> > device line-output-detect
> > Apr 29 01:10:33 linux ALSA sound/ppc/tumbler.c:369: failed to set
DRC
> > Apr 29 01:10:33 linux ALSA sound/ppc/tumbler.c:232: failed to set
> > volume
> > Apr 29 01:10:34 linux ALSA sound/ppc/keywest.c:122: tumbler: -6
> > :cannot initialize the MCS
> >
> > running alsamixer gives:
> > alsamixer: function snd_ctl_open failed for default: No such device
> >
> > .../...
>
> > I'm not sure what else to write but I'm glad to provide more info.
>
> Try current -mm and let me know.
I tried 2.6.12-rc3-mm3 and seems snd-powermac loads (according to
lsmod) but I get:
root@linux:/home/jas> alsamixer
alsamixer: function snd_ctl_open failed for default: No such device
and dmesg gives:
ip_tables: (C) 2000-2002 Netfilter core team
ip_conntrack version 2.1 (6144 buckets, 49152 max) - 248 bytes per
conntrack
device eth0 entered promiscuous mode
ALSA sound/ppc/tumbler.c:1049: cannot find device audio-hw-reset
ALSA sound/ppc/tumbler.c:1049: cannot find device amp-mute
ALSA sound/ppc/tumbler.c:1049: cannot find device headphone-mute
ALSA sound/ppc/tumbler.c:1049: cannot find device line-output-mute
ALSA sound/ppc/tumbler.c:1049: cannot find device headphone-detect
ALSA sound/ppc/tumbler.c:1049: cannot find device line-output-detect
ALSA sound/ppc/tumbler.c:381: failed to set DRC
ALSA sound/ppc/tumbler.c:244: failed to set volume
ALSA sound/ppc/keywest.c:122: tumbler: -6 :cannot initialize the MCS
ALSA sound/ppc/tumbler.c:1049: cannot find device audio-hw-reset
ALSA sound/ppc/tumbler.c:1049: cannot find device amp-mute
ALSA sound/ppc/tumbler.c:1049: cannot find device headphone-mute
ALSA sound/ppc/tumbler.c:1049: cannot find device line-output-mute
ALSA sound/ppc/tumbler.c:1049: cannot find device headphone-detect
ALSA sound/ppc/tumbler.c:1049: cannot find device line-output-detect
ALSA sound/ppc/keywest.c:122: tumbler: -6 :cannot initialize the MCS
ALSA sound/ppc/tumbler.c:381: failed to set DRC
Let me know what other info you perhaps need.
>
> > Also as a side note the readeonfb doesn't seem to work that good. I
> > get flickering. It works fine for with a 2.6.9 kernel. Any hints
> > welcome (btw I have xorg 6.8.2).
>
> Hrm, A more detailed report would be useful here. "I get flickering"
is
> close to the lowest you can get in that area :)
>
> Things like: type of monitor, type of connector, dmesg output (with
> radeonfb verbose debug config option enabled), x.org config file and
> log, when does the flickering happen ? in console ? in X ? in both ?
> what precisely do you call flickering, etc.. etc..
>
> X.org 6.8.2 lacks a number about a dozen patches I made to fix
various
> issues on ppc, you may want to try them, they are in X.org CVS HEAD
and
> patches against 6.8.2 are at:
>
> http://gate.crashing.org/~benh/xorg/
>
> The "series" file will tell you in what order to apply them. Note
that I
> think some distros like Ubuntu already picked up a number of these.
>
> Ben.
>
>
>
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