snd_hda_intel 0000:00:1f.3: failed to add i915 component master (-19)

[juliancyh]

Questions:

1. What is i915 component master?
2. What are the outcome(s) of failing to add i915 component master?
3. How do I resolve/remove this failure notice?

Background Info:

• This failure notice at bootup and shutdone of Ubuntu 10.5.
• My built consist of ASUS Z170M-Plus mobo, NVidea graphic card Ubuntu 10.5 OS that uses linux kernel 4.2.0-16-generic and Nvidia binary driver 352.55.
• I am surprise that this failure notice appears as Ubuntu is operational and I can watch and hear videos and music.
• snd_hda_intel appears to be an intel audio driver in the linux kernel that communicates with the ALSA kernel core and z170M-Plus audio hardware controller. Pls correct me if I am wrong.
• 0000:00:1f.3 is the PCIe slot of the built is audio device of the ASUS mobo.

00:1f.3Audio device: Intel Corporation Sunrise Point-H HD Audio (rev 31) Subsystem:ASUSTeK Computer Inc. Device 86c7 Flags:bus master, fast devsel, latency 32, IRQ 125 Memoryat f7140000 (64-bit, non-prefetchable) [size=16K] Memoryat f7120000 (64-bit, non-prefetchable) [size=64K] Capabilities:[50] Power Management version 3 Capabilities:[60] MSI: Enable+ Count=1/1 Maskable- 64bit+Kerneldriver in use: snd_hda_intel

[tgalati4]

i915 is the Intel video chipset. Perhaps there is a link between the Intel sound chip and the Intel graphics chip (if you have one). Is your on-board video chip turned off in BIOS? Turn it on and see if the message goes away. Perhaps it is used to synchronize sound and video.

[juliancyh]

The boot failure notice disappeared from the bootup and shutdown screens after I executed the below commands and after the system rebooted.
sudo apt-get purge nvidia*
sudo service lightdm stop
I do not understand the logic for this occurrence. I think the Dynamic Kernel Module Support (DKMS) which rebuilt the kernel during the command sudo apt-get purge nvidia* had something to do with eliminating the failure notice "snd_hda_intel 0000:00:1f.3: failed to add i915 component master (-19)". Partial answer to question 3. However, I noticed the failure notice was still in dmesg.

I then rebooted the system and went to view the UEFI to see if the video chip was turn on. Primay graphics was set to CPU Graphics. I changed it to Auto. Good news is that the failure notice no longer appears in dmesg and the bootup and shutdown screens.

Thanks for your reply tgalati4.

[matt_symes]

Hi

What are the outcome(s) of failing to add i915 component master?

If you revert your changes do you get sound out from your HDMI port ?

Kind regards

[juliancyh]

Hi matt_symes, tgalati4,

Apologies for the late reply.

From a week of reinstallations activities, I discovered the failure notice is caused by a setting in the ASUS UEFI.
The failure notice appears when in Advance Mode of the UEFI, the tab ( "Advance" --> "Advance\Systems Agent (SA) Configuration" --> "Graphic Configuration" --> "iGPU Multi-Monitor" ) is set to "Disabled".
However, when "iGPU Multi-Monitor" is "Enabled", dmesg shows:
snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
snd_hda_intel 0000:01:00.1: Disabling MSI
snd_hda_intel 0000:01:00.1: Handle VGA-switcheroo audio client


At the same time, when "Primary Graphics" is set to "CPU Graphics", there is audio from ASUS mobo HDMI and Line-Out-Port.
However, when "Primary Graphics" is set to "Auto" or "PCIe", there is only audio from ASUS mobo Line-Out-Port. Audio from HDMIs of both mobo and NVIDIA graphic card are disabled.

The above occurrences are repeatable and should supersede my previous explanations/descriptions made my earlier post.

Does this means the "i915" (Intel Video Chip) is represented in ASUS UEFI as "iGPU Multi-Monitor"?

Do you know if it is possible to activate audio from both NVidia graphic card HDMI and the mobo Line-Out-Port at the same time? Should I post this as a separate post or continue from this post?

Thanks.

[tgalati4]

Is there a BIOS/UEFI update for your Asus? Send an email to Asus describing your problem. I presume that when Primary Graphics is set to Auto or PCIe that you want the nVidia HDMI sound to work. It may be a problem with the proprietary nVidia driver. The i915 error messages seem consistent with your UEFI settings, so unless your Intel sound isn't working, I wouldn't worry about it.

Perhaps a newer kernel will help, but 4.2 is pretty new.

Is this machine dual boot? Does sound work as expected in Windows?