Re: Sound support

Steven Friedrich <freebsdlouisville@gmail.com> writes:

> On 5/16/23 5:43 PM, Vlad Markov wrote:
>> On Sun, 14 May 2023 15:16:30 +0200
>> Yuri <yuri@aetern.org> wrote:
>>
>>> Steven Friedrich wrote:
>>>> On 5/13/23 2:22 PM, Steven Friedrich wrote:
>>>>> I have an HP Slimline with a Realtek ALC3601 audio device.  
>>>>> I don't
>>>>> see any Realtek audio devices in FreeBSD 13.2-RELEASE 
>>>>> Hardware Notes.
>>>>> Am I out of luck?
>>>>>   
>>>> There are no pcm devices in /dev, but sndstat says:
>>>>
>>>> cat /dev/sndstat
>>>> Installed devices:
>>>> pcm0: <Realtek ALC671 (Rear Analog)> (play/rec) default
>>>> pcm1: <Realtek ALC671 (Analog)> (play/rec)
>>>> pcm2: <Intel Kaby Lake (HDMI/DP 8ch)> (play)
>>>> No devices installed from userspace.
>>>>
>>>> Does this mean no sound driver accepted these devices?
>>> Devices are called /dev/dsp*, see sound(4) man page (at least 
>>> the FILES
>>> section).
>>>
>>> $ ls /dev/pcm*
>>> zsh: no matches found: /dev/pcm*
>>> $ cat /boot/kernel/kernel > /dev/dsp
>>> (alien sounds)
>>>
>> I don't see any responses so here is my experience.
>>
>> Yes, a sound driver was found for your devices.
>>
>> cat someRandomFile > /dsp, should send out some noise.
>>
>> It may not, in which case check the mixer. /usr/sbin/mixer 
>> comes with the system. It is possible the volume is off.
>>
>> Still no joy? I don't remember how I figured this out but I had 
>> to make
>> entries in /boot/loader.conf. The handbook explains how to do 
>> this. It uses device.hints vice loader.conf. I did my setup 
>> long ago.
>>
>> Good luck,
>>
>> Vlad
>>   
> Could someone that has audio going to hdmi on an Intel cpu, 
> please post your
> /boot/loader.conf?

Hi Steven,

I have absolutely nothing concerning sound in my loader.conf. The 
only i915-related settings are

# from https://vermaden.wordpress.com/2018/11/
# then modified for modern values
# (mostly xxx.yyy to xxx.i915_yyy
# INTEL DRM WITH graphics/drm-kmod PACKAGE (NEW)
# SKIP UNNECESSARY MODE SETS AT BOOT TIME 
# disable power-saving display c-state 
# -1=auto [default]; (-1=auto [default]; 0=disable; 1=up to DC5; 
   2=up to DC6; 3=up to DC5 with DC3CO; 4=up to DC6 with DC3CO)
compat.linuxkpi.i915_enable_dc=1
compat.linuxkpi.i915_disable_power_well=0

because I have problems with loosing the external monitor after 
deep sleep.

HDMI sound works without problems, on a Thinkpad X1 Yoga 3rd Gen.

I’m not connected to the external monitor right now, so I have no 
sndstat output for you.

I’m running 13-STABLE from … two weeks ago I guess.

Good luck,

Mathias

-- 
Mathias Picker                        
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