Subject: kern/29261: sound (esm) lost after apm suspend/resume (2.0)
To: None <,,>
From: None <>
List: netbsd-bugs
Date: 02/07/2005 09:45:00
>Number:         29261
>Category:       kern
>Synopsis:       sound (esm) lost after apm suspend/resume (2.0)
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Feb 07 09:45:00 +0000 2005
>Originator:     Matthias Buelow
>Release:        NetBSD 2.0 i386
NetBSD 2.0 i386

The machine is an Armada m700 notebook.  Suspend/resume via zzz(8) seems
to work, except that after a suspend/resume, sound is lost.
No error occurs but no sound can be heard.  Mixer settings are ok.
Maybe some re-initalization of the hardware after suspend isn't done
by the driver?

The audio hardware is:

esm0 at pci0 dev 8 function 0: ESS Technology, Inc. Maestro 2E PCI Audio Accelerator (rev. 0x10)
esm0: interrupting at irq 11
esm0: ac97: SigmaTel STAC9721/23 codec; 18 bit DAC, 18 bit ADC, SigmaTel 3D
audio0 at esm0: full duplex, mmap, independent