Re: [alsa-devel] PROBLEM: snd-au8830: dead after software suspend

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Takashi Iwai wrote:
The below is an untested fix.  Give it a try.
With the patch, things seem to be much better (but I'm no expert).

The things remaining seem to be:
- sound can't be heard
- MPlayer gives an error, instead of doing nothing.

I've enabled debugging, and did the following, without and with the patch:
boot, mplayer start+pause, suspend, resume, mplayer unpause+exit+start+exit,
rmmod.

Below is an edited diff of the dmesges (printk's begin with a "k"),
without and with the patch, with my comments added. I hope this is enough info. If you need the full dmesges, let me know.

Anyway, thanks for you work :)

Gert Robben

--- without patch
+++ with patch
 initial boot:
 k ACPI: PCI Interrupt 0000:00:11.0[A] -> GSI 19 (level, low) -> IRQ 19
 k Vortex: init.... <3>ALSA sound/core/control.c:331: control 3:0:0:Play
 k back PCM advanced processing:0 is already present
 k done.
-k PCI driver au8830 lacks driver specific resume support.
 during suspend:
+k Vortex: shutdown...<6>done.
+k ACPI: PCI interrupt for device 0000:00:11.0 disabled
 during resume:
+k PM: Writing back config space on device 0000:00:11.0 at offset 1 (was
 k  2900007, writing 2900003)
 k ACPI: PCI Interrupt 0000:00:11.0[A] -> GSI 19 (level, low) -> IRQ 19
+k Vortex: init.... <6>ata1.00: configured for UDMA/33
+k ALSA sound/core/control.c:331: control 3:0:0:Playback PCM advanced pr
 k ocessing:0 is already present
+k done.
 mplayer unpause:
+- gives mplayer error: alsa-lib: pcm_hw.c:612(snd_pcm_hw_pause) SNDRV_P
   CM_IOCTL_PAUSE failed: File descriptor in bad state
 - nothing else happens
 mplayer exit:
+k vortex_adb_delroutes: route not found! 0x40
+k vortex_adb_delroutes: route not found! 0x2060
 k src alarm
+k vortex_adb_delroutes: route not found! 0x41
+k vortex_adb_delroutes: route not found! 0x2161
 k src alarm
 mplayer start:
-- nothing happens
+- mplayer seems to play fine, but no sound can be heard
 rmmod:
-k vortex: ac97 codec stuck busy
-k vortex: ac97 codec stuck busy
-k vortex: ac97 codec stuck busy
-k vortex: ac97 codec stuck busy
 k analog.c: 0 out of 0 reads (0%) on pci0000:00:11.0/gameport0 failed
-k Vortex: shutdown...<3>mix ALARM 0
-k mix ALARM 0
-k mix ALARM 0
-k mix ALARM 0
-k mix ALARM 0
-k mix ALARM 0
-k done.
+k Vortex: shutdown...<6>done.
 k ACPI: PCI interrupt for device 0000:00:11.0 disabled
-
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