Bug 209274

Summary:

No hardware mixer control for iMac G5 8,2

Product:

Base System

Reporter:

Dan Sharoh <dsharoh>

Component:

kern

Assignee:

Justin Hibbits <jhibbits>

Status:

New ---

Severity:

Affects Some People

CC:

jhibbits

Priority:

---

Version:

10.2-RELEASE

Hardware:

powerpc

OS:

Any

Attachments:

Description	Flags
output from 'ofwdump -ap'	none

Description Dan Sharoh 2016-05-05 00:34:05 UTC

Created attachment 169975 [details]
output from 'ofwdump -ap'

This bug report follows a discussion on the FreeBSD/ppc mailing list seen at the bottom of this post: https://lists.freebsd.org/pipermail/freebsd-ppc/2016-May/008186.html


There is currently no driver to control the hardware mixer. The volume can only be controlled at the application level, i.e mplayer can control its own output volume, but there is no generic system-level volume. 

I run freeBSD 10.2 on an PPC iMac G5 8,2, and I attached the output of 'owfdump -ap'

Comment 1 Justin Hibbits freebsd_committer

2016-05-10 02:02:38 UTC

Looking at the Linux source, it appears the driver does exist, the PowerMac8,2 uses the "onyx" driver.  However, the Open Firmware device node doesn't exist.  I'll see if I can whip up a patch for you to try.  I don't have the hardware, so I'll need to rely on you for testing.

Comment 2 Dan Sharoh 2016-05-18 08:27:59 UTC

Yup, I'm willing to help test. Whenever you get around to writing the patch, I'll try it out.