Bug report : i810_audio, compaq evo 410c, 2.4.20

[Nicolas Turro]

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I have laptops here (compaq evo 410c) that freeze completely while playing 
sound (using mpg123, for example). The crash is random, it may freeze as soon
as playback start of after a few minutes.

lspci :

00:00.0 Host bridge: Intel Corp. 82830 830 Chipset Host Bridge (rev 04)
00:01.0 PCI bridge: Intel Corp. 82830 830 Chipset AGP Bridge (rev 04)
00:1e.0 PCI bridge: Intel Corp. 82801BAM/CAM PCI Bridge (rev 42)
00:1f.0 ISA bridge: Intel Corp. 82801CAM ISA Bridge (LPC) (rev 02)
00:1f.1 IDE interface: Intel Corp. 82801CAM IDE U100 (rev 02)
00:1f.5 Multimedia audio controller: Intel Corp. 82801CA/CAM AC'97 Audio (rev 
02)
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility M6 LY
02:02.0 USB Controller: NEC Corporation USB (rev 41)
02:02.1 USB Controller: NEC Corporation USB (rev 41)
02:02.2 USB Controller: NEC Corporation USB 2.0 (rev 02)
02:03.0 CardBus bridge: Texas Instruments PCI1410 PC card Cardbus Controller 
(rev 02)
02:04.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 09)
02:04.1 Serial controller: Lucent Microelectronics: Unknown device 045c

tail of /var/log/messages after modprobing i810_audio :

Jan 13 18:49:39 sirius kernel: i810: Intel ICH3 found at IO 0x4400 and 0x4000, 
IRQ 5
Jan 13 18:49:39 sirius kernel: i810_audio: Audio Controller supports 6 
channels.
Jan 13 18:49:39 sirius kernel: ac97_codec: AC97 Audio codec, id: ADS99(Analog 
Devices AD1886A)
Jan 13 18:49:39 sirius kernel: i810_audio: AC'97 codec 0 Unable to map 
surround DAC's (or DAC's not present), total channels = 2
Jan 13 18:49:39 sirius kernel: i810_audio: setting clocking to 41319

kernel 2.4.20 + minor patch in ac97_codec.c (    { 0x41445363 ,"Analog Devices 
AD1886A", &null_ops },  added to   ac97_codec_ids ).

any help ?

N. Turro
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