>Number:         12723
>Category:       kern
>Synopsis:       many different problems with clcs0 sound chip
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Apr 23 06:08:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Steven M. Bellovin
>Release:        1.5.1 BETA
>Organization:
A&T
>Environment:
	
System: NetBSD berkshire.research.att.com 1.5.1_BETA NetBSD 1.5.1_BETA (BERKSHIRE) #0: Fri Apr 20 09:18:32 EDT 2001 smb@berkshire.research.att.com:/usr/src/sys/arch/i386/compile/BERKSHIRE i386


>Description:
	I'm experiencing a number of different problems with the
	clcs0 sound "card" on my laptop.  This time, it was trouble
	at boot time:

	clcs0 at pci0 dev 5 function 0: Cirrus Logic CS4280 CrystalClear Audio Interface (rev. 0x01)
	clcs0: interrupting at irq 11
	clcs0: AC97 write fail (DCV!=0) for add=0x26 data=0x0000
	clcs0: AC97 write fail (DCV!=0) for add=0x00 data=0x0000
	clcs0: AC97 read prob. (DCV!=0) for add=0x7c
	clcs0: ac97_attach failed

	(The boot was following a BIOS session, which followed a
	power-cycle.)

	Other times, I've seen problems about clearing the FIFO; in
	those cases, I've had to reboot.

	More commonly, if it does attach and I suspend the machine,
	when I resume I'll often get a continuous high-pitched tone.
	Something -- another suspend/resume cycle, perhaps? -- will
	cure that.

>How-To-Repeat:
	
>Fix:
	
>Release-Note:
>Audit-Trail:
>Unformatted: