DirectSound.

[YMY]

Windows 7. No sound is audible.

Code: Select all

00:00:08.786850 HDA: Asynchronous I/O enabled
00:00:08.786964 Audio: Initializing DirectSound audio driver
00:00:08.855228 DSound: DirectSound not available: REGDB_E_CLASSNOTREG
00:00:08.855298 Audio: Initialization of host backend failed with VERR_NOT_SUPPORTED
00:00:08.856083 Audio: Initializing NULL driver
00:00:08.856154 VM: Raising runtime error 'HostAudioNotResponding' (fFlags=0x0)
00:00:08.856165 Console: VM runtime error: fatal=false, errorID=HostAudioNotResponding message="Host audio backend initialization has failed. Selecting the NULL audio backend with the consequence that no sound is audible"
00:00:08.856439 HDA: Codec reset
00:00:08.856515 HDA: Reset

Sound in VMWare is working.

[socratis]

Partial logs are not that helpful I'm afraid. Please ZIP and attach the full log. See the "Upload attachment" tab below the reply form.

[YMY]

DirectSound-VBox.zip

[socratis]

00:00:02.675931   Name  <string>  = "ReactOS 0.4.0" (cb=14)

1) ReactOS is not a supported guest, and 2) I have a ReactOS VM (0.4.7), I've never been able to see any sound card. No sound card, no sound... One can only hope for improvement from the ReactOS community.

[mpack]

One can only hope for improvement from the ReactOS community.

You may have a long wait. In the whole time since I joined here, ReactOS version numbers have barely changed. Still in alpha after 8 years == vaporware.

[socratis]

Actually, I just checked the ReactOS webpage and 0.4.8 was released on 2018-04-14 (4 days ago), after "sticking" to a new release per 3-months! So, maybe things have picked up.

Still though, in their wiki page about Installing ReactOS they state:

• HD Audio or use of multiple audio cards at the same time are not yet supported. ReactOS will not boot after setup.

Downloading and testing. Will update with my findings...

Edit: No sound card was detected with ReactOS 0.4.8

[YMY]

Windows 8.1.

[socratis]

00:00:08.786964 Audio: Initializing DirectSound audio driver
00:00:08.855228 DSound: DirectSound not available: REGDB_E_CLASSNOTREG
00:00:08.855298 Audio: Initialization of host backend failed with VERR_NOT_SUPPORTED
00:00:08.856083 Audio: Initializing NULL driver
00:00:08.856154 VM: Raising runtime error 'HostAudioNotResponding' (fFlags=0x0)
00:00:08.856165 Console: VM runtime error: fatal=false, errorID=HostAudioNotResponding message="Host audio backend initialization has failed. Selecting the NULL audio backend with the consequence that no sound is audible"

There is definitely some sort of problem with your host OS. The sound is not working as it should.

I'm not sure if that's a consequence of this:

00:00:06.917816 supR3HardenedErrorV: supR3HardenedScreenImage/NtCreateSection: rc=VERR_BAD_EXE_FORMAT
                fImage=1 fProtect=0x7 fAccess=0x2 \Device\HarddiskVolume1\Windows\System32\drivers\atikmdag.sys: 
00:00:06.925954 supR3HardenedErrorV: supR3HardenedScreenImage/NtCreateSection: cached rc=VERR_BAD_EXE_FORMAT
                fImage=1 fProtect=0x2 fAccess=0x7 cHits=1 \Device\HarddiskVolume1\Windows\System32\drivers\atikmdag.sys

Your ATI drivers are disabled due to hardening issues. Please read really carefully the following FAQ: Diagnosing VirtualBox Hardening Issues for some guidelines/ideas. You may want to update your host's drivers.

[netsrak]

Here is a ReactOs page explaining some settings for virtualbox including sound:
https://reactos.org/wiki/VirtualBox

[YMY]

Sound is working in VirtualBox 4.2.36, but not working in VirtualBox 4.3.12.