From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tvrtko Ursulin <tvrtko@ursulin.net>
Subject: [2.6.33-rc3] HDA works in polling mode
Date: Sat, 9 Jan 2010 10:22:17 +0000
Message-ID: <201001091022.17056.tvrtko@ursulin.net>
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To: Takashi Iwai <tiwai@suse.de>, alsa-devel@alsa-project.org
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Hi,

I have a AMD 785G motherboard where there is a worrying situation logged by 
ALSA drivers. Sound nevertheless works.

lspci:
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)

dmesg:
HDA Intel 0000:01:05.1: PCI INT B disabled                                                       
HDA Intel 0000:00:14.2: PCI INT A disabled                                                       
HDA Intel 0000:00:14.2: PCI INT A -> GSI 16 (level, low) -> IRQ 16                               
HDA Intel 0000:01:05.1: PCI INT B -> GSI 19 (level, low) -> IRQ 19                               
HDA Intel 0000:01:05.1: irq 28 for MSI/MSI-X                                                     
HDA Intel 0000:01:05.1: setting latency timer to 64                                              
hda-intel: azx_get_response timeout, switching to polling mode: last 
cmd=0x000f0000

I tried position_fix=0, 1 and 2 with no difference. I also tried enable_msi=0 to 
make it use IO-APIC interrupt. Then this error is not displayed, sound 
works, but again no interrupts are generated at least count is not growing in 
/proc/interrupts.

Please tell me what else I can try and what debugging info you need.

Thanks,

Tvrtko