snd-hda-intel: Cannot turn on display power on i915

English Hardware
#1

Hi, I’m running opensuse 13.2 and get this error everytime I boot :

snd-hda-intel: Cannot turn on display power on i915

I guess it’s some sound driver related problem but I don’t know how to debug it. I have tried to configure sound in yast but wasn’t successful. I have Haswell HD Audio controller on index0 and Intel Corporation on index1. Also showing up is a “not configured” index with Nvidia corporation Card model.

Sound is working fine on both front and back plugs but it’d be great if I could get rid of this error.

#2

Just a guess that this is a notebook with both Intel and NVIDIA GPU’s This then may be an optimus based system. This is a very odd hardware configuration thiugh pretty common these days. It take specail care to deal with. If it is an Optimus based note book then

  1. do NOT install the normal NVIDIA video driver
  2. follow these instructions exactly if you plane to use the NVIDIA driver
    https://en.opensuse.org/SDB:NVIDIA_Bumblebee

If the sound works don’t worry about it. It just shows that some configuration was tested but did not work. With Optimus the hardware is massed together it a different way and the expect config did not work so something else was tried

#3

skunkz donned his tin foil hat and penned:

>
>
> Hi, I’m running opensuse 13.2 and get this error everytime I boot :
>
> snd-hda-intel: Cannot turn on display power on i915
>
> I guess it’s some sound driver related problem but I don’t know how to
> debug it. I have tried to configure sound in yast but wasn’t successful.
> I have Haswell HD Audio controller on index0 and Intel Corporation on
> index1. Also showing up is a “not configured” index with Nvidia
> corporation Card model.
>
> Sound is working fine on both front and back plugs but it’d be great if
> I could get rid of this error.
>
>

Not sure if this will help:

https://bugzilla.kernel.org/show_bug.cgi?id=74861

You need to pass that param on the kernel boot line, try it first when
booting and at the grub screen go to advanced and add.

i915.disable_power_well=0

If it solves your prob then use Yast bootloader config and add it there to
make it loaded at every boot.

HTH

–
Mark
Nullus in verba
Caveat emptor
Nil illigitimi carborundum

#4

Ok I tried to add the i915.disable_power_well=0 line on my kernel parameters but wasn’t successful.

I finally solved it by removing the nomodeset parameter, which I don’t really know what it does but it doesn’t seem to be problematic to boot without it :slight_smile:

Thanks for your help anyway

#5

“nomodeset” basically disables the intel graphics driver (and others that only support KMS, like radeon and nouveau).
So in most cases (unless the standard driver doesn’t work on your system) it is better to boot without it… :wink: